Please select the eligibility criteria that correspond to the clinical trial below.
Title: Can Commercial Mobile Apps for Weight Management be Used in Interventions? Bridging the Gap Between Usability, Theoretical Adherence, and User Experience - Part II - WaznApp Trial
Brief Summary: WaznApp study is a 12-week randomized controlled trial aimed to evaluate the feasibility and preliminary efficacy of a self-directed behavioral weight-loss intervention targeting employees of an academic institution, using two popular consumer mobile applications for weight loss. The hypothesis is that individuals assigned to the app that provides interactive feedback and proactively motivates engagement in healthy behaviors (eating healthily and being more active) will be significantly better than those who receive the comparison condition (a simple calorie tracking app).


Options:
A: Inclusion Criteria:

1. Be an employee of the American University of Beirut (AUB) or its Medical Center (AUBMC).
2. To be able to read, write, and understand English.
3. To own a mobile phone with either Android (v4.4 or above) with or iOS (v8 or later).
4. To be interested in better controlling their weight.

Exclusion Criteria:

1. Students, who cannot prove their status as full-time or part-time employees at AUB or AUBMC.
2. Employees who are not able to read, write, and understand English.
3. Employees who do not own a mobile phone with either Android (v4.4 or above) or iOS (v8 or later).
4. Employees who have physical disabilities preventing them from exercising or walking.
5. Employees who are on a special diet for treatment of chronic conditions (e.g., Diabetes).
B: Inclusion Criteria:

* BMI between 30-40
* weight stable (not gained/lost more than 25 lbs in the past 6 months)
* not enrolled in any formal weight-loss program
* interested in losing weight
* willing and able to record dietary intake and weight for 6 months and wear an accelerometer
* willing to attend 8 weekly groups and 2 follow up assessments at the Northwestern Chicago campus
* expect to reside in the Chicago land area for the next 12 months

Exclusion Criteria:

* any unstable medical conditions (i.e. uncontrolled hypertension, diabetes, unstable angina pectoris, myocardial infarction, transient ischemic attack, cancer undergoing active treatment, a cerebrovascular accident within the past 6 months)
* history of insulin-dependent diabetes
* Crohn's disease
* diagnosis of obstructive sleep apnea requiring intervention
* required use of an assistive device for mobility (i.e. cane, wheelchair)
* BMI \> 40
* hospitalization for a psychiatric disorder within the past 5 years
* those at risk for adverse cardiovascular events with moderate intensity activity
* those currently taking weight loss medication or committed to following an incompatible dietary regimen
* women who are pregnant, trying to get pregnant, or lactating
* Bulimia Nervosa
* suicide ideation
* current binge eating disorder
* those currently taking medications known to cause weight gain (i.e. Prednisone, Depakote, Diebeta, Diabinese, Cardura, Inderal, Zyprexa)
* current substance abuse or dependence
* plantar fasciitis
* current substance and/or alcohol dependence
* depression
* ADHD
C: Inclusion Criteria:

1. male students aged between 19 to 45;
2. body mass index ≥ 27;
3. smartphone user (either Android or iPhone);
4. able and willing to attend a four pre-specified visit during the study period.

Exclusion Criteria:

1. any treatment involving pharmacotherapy, procedure, or surgery;
2. use of any activity tracker device during the last three months.
3. Those who answered positively to any Physical Activity Readiness Questionnaire (PAR-Q) question were also excluded.
D: Inclusion

* age 17-25 years
* Current CSCC student
* Identify as Black
* BMI ≥ 25
* Speaks and reads English
* Interested in losing weight through diet and physical activity changes
* Owns a smartphone or iPhone Operating System (iOS) or Android compatible device
* Ability to return for 12-month visit

Exclusion

* currently pregnant or planning to become pregnant in next 12 months
* Currently participating in another structured weight loss program or taking weight loss medications or medication known to increase weight
* Lost 10% or more of body weight in past 6 months
* Screens positive for disordered eating symptoms
* diagnosed with type I diabetes

Answer: A