Research Completed

Published Studies

Year Publication Categories
2023
Results from the COMPARE Study – How Do Different Medications Impact IBD Patients?

Summary

When IBD patients start taking a new medication, it can be hard to know if it will finally be the medication to help achieve remission, or if the side effects will impact sleep, social life, and ability to work. Over 400 IBD Partners participants took part in the COMPARE study to compare the effects of Entyvio vs. Stelara for Crohn's disease and Entyvio vs. Xeljanz for ulcerative colitis. Our patient partners identified fatigue and pain as outcomes of particular interest for this research to focus on.

For Crohn's disease, the study showed that there were no significant differences in the way Entyvio and Stelara affected patients' fatigue levels or the way pain impacted their lives. The results were similar for most other measures as well, although Stelara was associated with lower steroid use and more patients discontinued Entyvio.

For ulcerative colitis, study participants using Xeljanz experienced less pain as compared to participants using Entyvio. There were no significant differences in fatigue or other outcomes.

The results suggest that for both Crohn's disease and ulcerative colitis, patients generally function similarly with either medication. Patients and their physicians need to consider many factors that may influence which medication is right for them.

Full Published Manuscript for Crohn's Disease

Full Published Manuscript for Ulcerative Colitis


Keywords
COMPARE; Entyvio; Stelara; Xeljanz; vedolizumab; ustekinumab; tofacitinib; patient-reported outcomes; pain; fatigue; comparative effectiveness; Crohn s disease; ulcerative colitis;

Medications
2021
A Randomized Trial Comparing the Specific Carbohydrate Diet to a Mediterranean Diet in Adults with Crohn's Disease

Summary

Researchers compared the effectiveness of a Mediterranean style diet to the Specific Carbohydrate Diet in nearly 200 Crohn's disease patients with mild-to-moderate symptoms on stable doses of medications. With both diets, nearly half of the patients experienced resolution of their symptoms. After six weeks, 43.5% of patients following a Mediterranean style diet and 46.5% of patients following the Specific Carbohydrate Diet achieved symptomatic remission.

While the Specific Carbohydrate Diet has typically been popular among IBD patients, public health experts often recommend a Mediterranean style diet because it has a variety of other health benefits. Researchers from the DINE-CD study also note that it is easier to follow than Specific Carbohydrate Diet.


Full Scientific Manuscript

Keywords
scd; specific carbohydrate diet; specific carbohydrate; md; mediterranean; mediterranean style diet; mediterranean diet; diet;

Diet
2020
Trends and Characteristics of Clinical Trials Participation for Inflammatory Bowel Disease in the United States: A Report From IBD Partners

Summary

Between 2011 and 2018, participation in randomized controlled trials (RCTs) for inflammatory bowel disease declined while available RCTs in-creased. Younger patients, patients in community settings, and patients with milder disease were underrepresented in RCTs. Nonparticipants had disease activity failing remission criteria, highlighting the role of RCT participation.


Full Scientific Manuscript

Keywords
Clinical; Trials; older; academic; medical center; severe; disease; sicker; vedolizumab; ustekinumab; tofacitinib; under; age; community; facilities; underrepresented; newest; therapies; free; medication; procedures; all patients have; opportunity;

Research Methods,
Alternative Therapies,
Medications
2020
Association Between Vulvovaginal Discomfort and Activity of Inflammatory Bowel Diseases

Summary

Inflammatory bowel diseases (IBD) affect 200-400 people per 100,000 in the United States, about half of whom are women. Our goal was to research how common it is for women with IBD to experience vulvovaginal symptoms. For this study, we recruited women more than 18 years old with IBD (1250) who agreed to complete an online survey that asks questions about the presence and severity of vulvar or vaginal itch, burn, or irritation, vaginal discharge or dryness, and vulvovaginal pain. The survey collected information on background information and a history of their IBD activity history. Women with and withou t symptoms were compared for analyses. For the results, we found a total of 512 women reported at least 1 moderate-severe vulvovaginal symptom. All vulvovaginal symptoms except vaginal dryness were more common in women with active IBD and vulvovaginal discomfort frequently or always decreased interest in sex or ability to have sex. In conclusion, we found that women with more active IBD have increased prevalence of vulvovaginal discomfort, compared to women in remission. These symptoms affect sexual health.


Full Scientific Manuscript

Keywords
Crohn s Disease; Ulcerative Colitis; Vaginitis; Female Patient;

Health Maintenance
2019
Changes in Patient-Reported Outcomes With Vedolizumab Therapy in Patients With Inflammatory Bowel Diseases (IBD): Results From the IBD Partners Patient Powered Research Network

Summary

We studied whether patients starting Entyvio® (vedolizumab), who had previously used an anti-TNF biologic, such as Remicade® (infliximab) or Humira® (adalimumab), responded differently than people who had not used one of these therapies. We studied 380 patients with Crohn's disease and ulcerative colitis in the IBD Partners cohort who were starting vedolizumab. We found that patients who had not previously used an anti-TNF biologic had higher remission rates and improved quality of life.


Full Scientific Manuscript

Keywords
Entyvio; vedolizumab; anti-TNF biologic;

Medications
2019
Variation Among Patients With Crohn's Disease in Benefit vs Risk Preferences and Remission Time Equivalents
Medications
2019
Impact of Obesity on Disease Activity andPatient-Reported Outcomes Measurement InformationSystem (PROMIS) in Inflammatory Bowel Diseases

Summary

The rate of diagnoses has increased for both obesity and IBD, and some research suggests that obesity may play a part in the development of IBD. About 15-40% of patients with IBD are obese, which is defined as having a body mass index (BMI) of 30 or higher. However, there has been little research on how obesity might affect outcomes in patients with IBD. In this study of nearly 7300 patients with IBD, we found that about one in 5 patients with IBD were obese. Obese patients were more likely to have active symptoms related to IBD, as compared to patients with normal BMI. Over a period of 12-18 months, we obs erved that obese patients with active disease were significantly less likely to achieve remission. Similarly, among patients in remission at baseline, obese patients were 2-3 times more likely to relapse on follow-up, as compared to patients with normal BMI. Obese patients with IBD were more likely to have anxiety, depression, fatigue, and experience pain. They were also less satisfied with their ability to participate in social roles. These effects were seen in patients with both ulcerative colitis and Crohn's disease. Future studies to find out whether treating obesity may improve outcomes in patients with IBD are needed.


Full Scientific Manuscript

Keywords
Obesity, promis, disease activity;

Lifestyle
2019
A Diet Low in Red and Processed Meat Does Not Reduce Rate of Crohn s Disease Flares

Summary

Diet may be an important factor in the development and progression of IBD. A previous study demonstrated that patients with ulcerative colitis were more likely to flare with increased consumption of red and processed meats. We sought to examine whether increased consumption of red and processed meats was associated with Crohn's disease (CD) flares. To do this, adults with CD were recruited from IBD Partners. Patients who were in remission were randomly assigned to groups that consumed a minimum of 2 servings/week of red or processed meat (118 patients) or not more than 1 serving per month (96 patients) for 49 weeks. The primar y outcome was relapse of CD, defined as increase in short Crohn's Disease Activity Index or a need for surgery or a need for new medication. During the trial, patients in the high-meat group reported compliance with eating 2 or more servings of red or processed meat during 98.5% of weeks compared to 18.8% of weeks for the low-meat group. In an analysis of data from the FACES trial, we found that among patients with CD in remission, amount of red and processed meat consumption was not associated with risk of flare.


Full Scientific Manuscript

Keywords
diet; red meat; processed meat; Crohn's disease; CD; Flares;

Lifestyle,
Health Maintenance
2018
High Patient Activation Is Associated With Remission in Patients With Inflammatory Bowel Disease

Summary

Research has shown that patients with chronic diseases have better health outcomes if they are knowledgeable, skilled and confident in managing their disease. In this study, researchers wanted to find out if this is true for patients with IBD. To evaluate this, they delivered a survey called the Patient Activation Measure to 1,486 patients with IBD. Based on this survey, patients are placed on one of four levels. The lowest level is Level 1, "disengaged and overwhelmed." The highest level is Level 4, "maintaining behaviors and pushing further." Follow-up data available for 1082 survey participants (73%) showed that patients with high activation (levels 3 or 4) were more likely than those with low activation (levels 1 or 2) to be in clinical remission 6-12 months after the initial survey assessment.


Full Scientific Manuscript

Keywords
patient activation; PAM; Patient Activation Measure; surgery; Crohn s disease; CD; ulcerative colitis; UC; remission;

Lifestyle,
Health Maintenance
2018
Paternal Disease Activity Is Associated With Difficulty inConception Among Men With Inflammatory Bowel Diseases

Summary

IBD commonly affects men and women during their reproductive ages. Because of this, researchers are interested in knowing how the disease affects fertility and pregnancy. Much research on the impact of IBD on fertility and pregnancy has focused on women, but for this study, researchers focused on men. They wanted to know how men's IBD and their use of IBD medication affect reproductive outcomes. The study results showed that men who received a diagnosis of IBD before trying to conceive were more likely to have difficulty conceiving than men who developed IBD after conceiving. However, these fi ndings were noted only in those with recently active disease within the past 6 months. Men with IBD who were in long-term remission were similar to the rates prior to development of IBD. Exposure to any of the medications for treating IBD was not associated with congenital anomalies, low birth weight or preterm births.


Full Scientific Manuscript

Keywords
paternal; disease activity; men; fertility; pregnancy;

Lifestyle,
Health Maintenance
2018
Evaluation of Gastrointestinal Patient Reported Outcomes Measurement Information System (GI-PROMIS) Symptom Scales in Subjects With Inflammatory Bowel Diseases

Summary

Patient reported outcomes (PROs) are important measures of how well treatments work in inflammatory bowel disease (IBD). PROs are symptoms reported directly by patients, rather than tests like colonoscopies or blood work. The PRO Measurement Information System (PROMIS) is a scale for measuring PROs for physical, mental, and social health. A gastrointestinal (GI) PROMIS scale was recently developed based on responses from people across the United States. The GI PROMIS scale includes questions about eight common GI symptoms: gas, reflux, diarrhea, soilage, constipation, belly pain, nausea and vomiting, and difficulty swallowing. We studied these questions in 2,378 people with Crohn's disease (CD) and 1,455 people with ulcerative colitis (UC) in CCFA Partners. About half of the participants reported being in remission. Compared to participants in remission, those with active CD reported worse symptoms on the GI-PROMIS scale for all symptoms. The same was true for participants with active UC with the exception of difficulty swallowing. Participants with worse quality of life reported worse symptoms on the GI-PROMIS scale for all symptoms. Participants with more diarrhea, belly pain, and gas reported poorer mental and social PROs. In summary, participants who reported worse GI-PROMIS symptoms also reported worse qualify of life, disease activity, and mental and social outcomes. These results suggest that the GI-PROMIS scales could be an important way to measure symptoms in the future.


Full Scientific Manuscript

Keywords
patient reported outcomes; IBD; quality of life; GI-PROMIS; psychosocial symptoms;

Research Methods
2017
Obesity Is Associated with Worse Disease Activity in Patients with Inflammatory Bowel Diseases: an Internet Based Cohort Study

Summary

More than 1/3 of adults in the US are obese and the rates of obesity are increasing. However, relatively little is known about the prevalence of obesity in patients with inflammatory bowel disease (IBD) or the impact of obesity on IBD disease activity. In this study, we reviewed patients in the CCFA Partners database to better understand these issues. We found that approximately 30% of IBD patients were overweight and an additional 20% were obese. Patients who were overweight or obese were less likely to have their IBD in remission at baseline. We also found that patients who were obese (but not overweight patients) were more likely to have a relapse of their IBD within 6-12 months compared to normal weight patients. In summary, obesity appears to be relatively common amongst patients with IBD and may be a risk factor for worsened disease.


Full Scientific Abstract

Keywords
comorbidity; obese; obesity; overweight; nutrition; patient reported outcomes;

Study Updates,
Lifestyle
2016
The impact of ostomy on quality of life and functional status of Crohn's disease patients within CCFA Partners

Summary

Patients with Crohn's disease, or CD, may require surgery during the course of their disease. This can result in the need to create a permanent or a temporary ostomy. Ostomy is the term used to describe the surgically created connection between the intestine and the abdominal wall. It allows for the evacuation of the fecal matter through the abdominal wall. The potential need for an ostomy is a major concern for many patients with inflammatory bowel disease as it may impact their daily function and quality of life. Within the CCFA Partners network, we evaluated the characteristics of CD patients who had an ostomy for at least 6 months. We also looked at how ostomy impacts their daily function and quality of life. A total of 4733 patients were included, of these, 402 reported an ostomy for at least 6 months. Patients with ostomy were more likely to be in clinical remission compared to those with no ostomy. Also, only half the patients with ostomy were receiving specific IBD therapies. Having an ostomy did not impact the quality of life or sexual function (interest and satisfaction) of CD patients. Additionally, there was no association between having an ostomy and anxiety, depression, or sleep disturbances. However, having an ostomy was associated with increased pain interference, fatigue and lower social satisfaction. It was also associated with higher rated of narcotic use. Appropriate counseling before and after surgery can help improving social satisfaction for patients with ostomy. Further studies are needed to determine the nature of pain and fatigue in this population.


Full Scientific Manuscript

Keywords
ostomy; quality of life; social health; Crohn's disease; crohn's; CD;

Lifestyle,
Mental Health
2016
Evaluation of Gastrointestinal Patient Reported Outcomes Measurement Information System (GI-PROMIS) Symptom Scales in Patients with Crohn's Disease in CCFA Partners

Summary

Patient reported outcomes (PROs) are important measures of how well treatment works in Crohn's disease (CD). PROs are symptoms reported directly by patients, rather than tests like colonoscopies or blood work. The PRO Measurement Information System (PROMIS) is a new scale for measuring PROs for physical, mental and social health. The results can be compared to those from people that don't have IBD. A gastrointestinal (GI) PROMIS scale was recently developed. The GI scales were not studied in large numbers of Crohn's patients, but were studied in people all across the United States. We studied these questions in 1839 people with Crohn's disease in CCFA Partners. Most (75%) were women. People with Crohn's disease reported more fatigue, anxiety and pain compared to people without Crohn's disease. People with Crohn's disease reported less reflux, problems swallowing and constipation than people without Crohn's disease. Other GI symptoms for people with Crohn's disease were similar to those reported by people without Crohn's disease. Compared to people in remission, people with active CD reported worse symptoms on the GI-PROMIS scales for all symptoms except problems swallowing and constipation. Those with a worse quality of life, as measured by the Short IBD Questionnaire (SIBDQ), reported worse symptoms on the GI-PROMIS scales all symptoms. People who reported more nausea, diarrhea, gas/bloat and abdominal pain reported more psychosocial symptoms on the PROMIS scales. In summary, those with worse symptoms on the GI-PROMIS scales scored worse disease activity scales, quality of life scales and more symptoms of depression and anxiety. These scales could be important ways to measure symptoms in the future.


Full Scientific Abstract

Keywords
Patient reported outcomes; PROs; PROMIS; survey instruments; Crohn s disease; CD;

Research Methods,
Health Maintenance
2016
Variation in Care of Inflammatory Bowel Diseases Patients in CCFA Partners:Role of Gastroenterologist Practice Setting in Disease Outcomes and QualityProcess Measures

Summary

Variation in care of patients with Crohn's disease (CD) and ulcerative colitis (UC) has been used as a marker for quality differences. We studied whether important aspects of IBD patients' care in CCFA Partners varied based on where their GI doctor was in practice. We compared patients who saw an academic (university) GI physician, a private practice GI physician, or other GI physician (such as a Veteran's Affairs physician). The study included about 12,000 IBD patients. Almost 95% reported visiting a GI provider at least once a year: about 74% saw a private practice physician, 15% academic, and 11% other. Those patients with CD seen by academic physicians were younger, has completed higher education, used less mesalamine medications, and used more biologics and immunomodulators. They were more likely to be in remission, were more likely to get a flu shot, smoked less, and were less likely to be on steroids when compared to private or other physicians. Patients with UC seen by academic providers were younger, had more hospitalizations and surgery, with greater biologic and immunomodulator use. There was no difference in steroid use, and no differences in any of the other measures like remission rates, flu shot, quality of life. In summary, there was much more variation in CD care as compared to UC care, with improved outcomes for CD patients seen by academic providers. Studying why this is the case, could help us to improve the quality of care delivered to all IBD patients.


Full Scientific Manuscript

Keywords
healthcare setting; quality of care; remission; gastroenterologist; quality of life; QOL; medications; Crohn s disease; Crohn s; CD; ulcerative colitis; UC; colitis;

Health Maintenance,
Environment,
Medications
2016
Association Between Affective-Cognitive Symptoms of Depression and Exacerbation of Crohn's Disease

Summary

Depression is common among patients with Crohn's disease (CD). In this study, we wanted to understand if CD patients in remission who reported symptoms of depression were more likely to experience worsened CD symptoms later in time. To answer this question we looked at responses to CCFA Partners survey questions submitted by more than 2,000 CD patients about negative mood (I felt depressed), negative beliefs about the self (I felt worthless, I felt hopeless), and decreased life engagement/negativity (I felt hopeless) during the past seven days. Twelve months later, we asked about the severity of their CD activity using a standard CD questionnaire about diarrhea, pain, and well-being. We found that symptoms of depression predicted CD activity a year later. In other words, CD patients who were depressed were more likely to have CD symptoms a year later than those who were not depressed.


Full Published Manuscript

Keywords
depression; comorbidity; Crohn s disease; Crohn s; CD;

Lifestyle,
Mental Health
2016
Role of Nonsteroidal Anti-Inflammatory Drugs in Exacerbations of Inflammatory Bowel Disease

Summary

Nonsteroidal anti-inflammatory drugs (NSAIDs, medications such as Advil, ibuprofen, naproxen, etc.) may cause GI inflammation in patients with inflammatory bowel disease (IBD). IBD patients are often told to avoid these medications. We looked at patients in CCFA Partners in who were in remission (with few to no symptoms) and asked about regular NSAID use. We then looked at whether they flared 6 months later. A total of 791 patients were included, of these, 40.6% reported ever using NSAIDS at baseline. Patients with Crohn's disease (CD) who regularly used NSAIDS (at least 5 times/monthly) had a 65% increased risk of later flare. No effect of regular NSAID use was seen for ulcerative colitis (UC). Those with CD who used acetaminophen (Tylenol) also had a 72% increased risk of later flare. Lower doses of NSAIDs had no association with flare. Therefore, regular NSAID use or acetaminophen use may increase the risk of flare in CD, but not UC. This may be related to effects of the medications. It is also possible that those people with IBD who require pain medications at baseline may not be in as full a remission, which may increase the risk of later flare.


Full Scientific Manuscript

Keywords
active disease; nonsteroid; NSAID; anti-inflammatory; drugs; flare; risk; prevention;

Medications
2015
Exercise Decreases Risk of Future Active Disease in Patients with Inflammatory Bowel Disease in Remission

Summary

Little is known about how exercise impacts disease activity in patients with inflammatory bowel disease (IBD). This study explored the relationship between exercise level and disease activity in a large group of patients with IBD in remission. A total of 1,857 patients from the CCFA Partners cohort participated by answering online questions about their exercise level and disease activity at the beginning of the study (in remission) and then again after six-months. We found that participants with Crohn's disease who reported higher levels of exercise at the beginning of the study were significantly less likely to report active disease six-months later. We also found this association among participants with ulcerative colitis (UC) and indeterminate colitis (IC), but the results were not significant. Results of this study suggest that for patients with Crohn's disease (and possibly for patients with UC and IC) who are in remission, higher levels of exercise may reduce the risk of developing active disease in the short-term.


Full Published Manuscript

Keywords
active disease; flare; prevention; risk;

Exercise,
Lifestyle,
Alternative Therapies,
Health Maintenance
2014
Perceptions of Patients with Inflammatory Bowel Diseases on Biobanking

Summary

A biobank is a collection of samples from patients (including spit, stool or blood). Biobanks are very important for understanding risk factors for developing disease or for severity of disease. We wanted to understand more about why patients with inflammatory bowel disease (IBD) would or would not participate in a biobank. We first did a series of interviews over the phone with patients who were participating in the CCFA Partners study. This helped us to understand the important concerns about biobanks and develop a survey for use in CCFA Partners. We then sent a survey to over 800 people with IBD in CCFA Partners. We did a total of 26 phone interviews. Patients doing the interviews told us that they had concerns about how samples would be collected/stored; who would be allowed access; whether these samples would be used for other things (not only research); and whether this would affect whether they could get life insurance. Most people were not that worried about using the blood for genetic studies. People thought that that biobanks were important for research, that they might lead to a cure; that by donating they would be helping others or family members with IBD; and hoped that they might personally benefit, although most understood that they likely would not. These themes aided in the development of a survey instrument to assess perceptions of biobanking. A total of 476 people initially finished the survey. Almost 40% said that they would 'definitely yes' donate samples, 56.0% would 'probably yes' donate, 5.1% 'probably no' and 0.7% 'definitely no'. There were no factors that made someone more likely to donate (reported donation rates were not different for Crohn's disease (CD) versus ulcerative colitis (UC), remission versus active disease, or education level. People were most willing to donate spit, followed by blood and lastly stool. Knowing these important thoughts on sample donation/biobanks will help researchers to develop consents for IBD biobanks and design educational materials on biobanks for IBD A biobank is a collection of biological samples, such as saliva, blood, and stool, from individuals with a common condition such as inflammatory bowel disease (IBD). Biobanks are important for understanding risk factors for developing disease or for severity of disease. We wanted to learn more about IBD patients' understanding of and willingness to participate in a biobank. We first did 26 phone interviews with patient volunteers participating in the CCFA Partners study. Those interviews helped us better understand concerns related to biobanks. Patients doing the interviews told us that they had concerns about how samples would be collected/stored, who would be allowed access, whether these samples would be used for anything other than research, and whether participation in a biobank would affect life insurance eligibility. Most patients were not that worried about using blood for genetic studies. Participants thought biobanks were important for research, that they might lead to a cure, that by donating they would be helping others or family members with IBD, and hoped that they might personally benefit. These results from the phone interviews were used to develop an online survey instrument to assess perceptions of biobanking. In a larger sample, a total of 1,007 people with IBD completed the online survey. Almost 40% said they would 'definitely' donate samples, 56.4% would ‘probably’ donate, 3.6% ‘probably not’, and 0.6% 'definitely not'. There were no differences in willingness to donate specimens based on disease type (Crohn's vs. ulcerative colitis) or on disease activity (in remission vs. currently active disease). People were most willing to donate saliva specimens, followed by blood and lastly stool samples. Knowing these important attitudes and beliefs about sample donations and biobanks will help researchers develop consents and educational materials related to biobanks that will encourage wider involvement.


Full Published Manuscript

Keywords
biobanking; sample collection; sample storage, confidentiality; HIPAA; community; population;

Research Methods,
Study Updates
2013
Sleep Disturbance and Risk of Active Disease in Patients With Crohn's Disease and Ulcerative Colitis

Summary

People with inflammatory bowel disease (IBD), like Crohn's disease and ulcerative colitis, tend to have poor quality of sleep. In this study of over 3000 people with IBD, those with more disease activity, depression, female gender, a history of smoking, or those currently taking corticosteroids or narcotics were more likely to have sleep disturbance. Of people with Crohn's disease who were in remission at the beginning of the study, those with sleep disturbance were twice as likely to have a flare in 6 months. No effect was seen for ulcerative colitis. These results suggest that sleep is important for maintaining remission in IBD.


Full Published Manuscript

Keywords
active disease; sleep; flare; risk; prevention; Crohn s Disease; Crohn's; CD; Ulcerative Colitis; UC; colitis;

Lifestyle
2013
Development of CCFA Partners Kids & Teens: an Internet-Based Cohort of Pediatric IBD

Summary

After the successful launch of CCFA Partners for adult patients with inflammatory bowel disease, the kids and teens component (CCFA Partners Kids & Teens) started in 2013. In partnership with the Crohn's and Colitis Foundation of America (CCFA), children <18 years of age were asked to join the internet-based study through email invitations and promotion on social media sites. After informed consent, the children and their parents completed surveys asking questions about their disease, their medications and other patient reported outcomes (such as quality of life, fatigue, sleep, peer relations, mood, etc). In the first month, 419 children joined. The average age was 13, with about 1/2 being female and about 3/4 having Crohn's disease (CD). Common medications used by patients with CD were biologics, thiopurines (6mp or azathioprine) or mesalamine-based medications (Pentasa, Lialda, Apriso, etc). The most common medication for patients with ulcerative colitis (UC) was mesalamine-based medications. Most of the CD patients were in remission and most UC patients had mild disease. Children who had active disease had more depression and anxiety. Following this group of children over time will help us to learn a great deal about living with IBD as a child, and will allow us to follow these children into adulthood to learn even more about the disease itself, the impact of medications, and how symptoms change over time.


Full Scientific Abstract

Keywords
kids & teens; K&T; pediatric; age; kids; teens; community; population; resource;

Research Methods,
Study Updates