Table 4.
Review of recent MI intervention trials in pediatric obesity
| Author (year) | Study design | Subject | Duration (follow-up) | Intervention (session) | Outcome |
|---|---|---|---|---|---|
| Freira et al. (2018, 2019)54,55 | Cluster RCT | - 97 Participants (14–19 years) - Overweight |
- 3 Months (6 months follow-up) - 83 (85.6%) Completed |
- CI: 3 sessions - MI: 3 sessions |
- MI group: BMI z-score↓, WC↓, fat mass↓, muscle mass↑, SBP↓, DBP↓ - CI group: WC↑, fat mass↑, muscle mass↓, HRQoL↓ |
| Naar et al. (2019)5 (fit families) | Sequential multiple assignment randomized trial | - 181 Participants (12–17 years) - BMI ≥95th percentile for age and sex |
- 7 Months - 156 (86%) Completed |
- Home-based MI: 12 sessions+RP/CS/CM (3 mo) - Office-based MI: 12 sessions+RP/CS/CM (3 mo) |
All groups: weight loss 3.20% (no group difference) |
| Resnicow et al. (2016)53 (BMI2) | Cluster RCT | - 645 Participants (2–8 years) - BMI ≥85th, ≤97th for age and sex |
- 2 Years - 457 (71%) Completed |
- Usual care - PCP: 3 MI sessions, 1 booster session (PCP) - PCP+RD: 3 MI sessions, 1 booster session (PCP), 6 sessions (RD) |
- BMI percentile, fruit and vegetable intake: PCP+RD<usual care - Screen time: PCP+RD<PCP, usual care |
| Broccoli et al. (2016)52 | RCT | - 372 Participants (4–7 years) - BMI ≥85th, ≤95th for age and sex |
- 12 Months (24 months follow-up) - 337 (91%) Completed |
- Usual care - MI: 5 sessions |
- MI short-term effect (12 mo): BMI↓, PA↑, sweet snacks/desserts↓, sweetened drinks↓ - MI long-term effect (24 mo): BMI↑ (12–24 mo rebound), breakfast↑, sweetened drink↓ |
MI, motivational interviewing; RCT, randomized controlled trial; CI, conventional intervention; BMI, body mass index; WC, waist circumference; SBP, systolic blood pressure; DBP, diastolic blood pressure; HRQoL, health-related quality of life; RP, relapse prevention; CS, continued skills; CM, contingency management; PCP, primary care providers; RD, registered dietitians; PA, physical activity.