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Table 3 Anthropometric and Health Behavior Outcomes by Participant Group

From: Student public commitment in a school-based diabetes prevention project: impact on physical health and health behavior

 

Overall (N = 4603)

Baseline BMI ≥ 85thpercentile (N = 2292)

 

PC (N = 835)

NPC (N = 1472)

Control (N = 2296)

 

PC (N = 392)

NPC (N = 768)

Control (N = 1132)

 
 

Mean (SD) or %

Mean (SD) or %

Mean (SD) or %

p-value

Mean (SD) or %

Mean (SD) or %

Mean (SD) or %

p-value

   BMI Percentile, M (SD)

70.9 (26.9)

73.2 (26.3)

72.6 (26.7)

0.201

91.3 (9.7)

91.7 (9.9)

92.2 (8.9)

0.171

   BMI ≥ 95th Percentile

21.4%

26.4%

26.6%

0.021

44.6%

50.1%

53.2%

0.011

   Waist Circumference ≥90th Percentile

19.7%

22.2%

22.7%

0.071

40.4%

41.8%

45.1%

0.051

Student Health Behaviors

        

   Fruits and Vegetables (servings/day), M (SD)4

2.4 (2.0)

2.4 (2.1)

2.3 (2.0)

0.235

2.4 (2.2)

2.3 (2.0)

2.3 (2.1)

0.625

   Added Sugar Beverages (oz/day), M (SD)4

12.5 (12.3)

13.5 (13.9)

14.3 (15.2)

0.315

10.9 (11.0)

13.0 (13.3)

12.9 (14.2)

0.205

   Fitness (# of laps), M (SD)7,8

28.3 (17.7)

26.6 (16.5)

27.6 (17.3)

0.425

25.3 (16.2)

23.1 (14.8)

22.9 (14.9)

0.355

  1. PC = group of intervention school students engaged in public commitment activities, NPC = group of intervention students not engaged in public commitment activities
  2. 1Adjusted for baseline value
  3. 2 For overall sample, analyses of BMI ≥ 95th percentile: PC vs. NPC, p = .05; PC vs. Control, p = 0.02; NPC vs. Control, p = 0.37. For high risk (baseline BMI ≥ 85th percentile) analyses of BMI ≥ 95th percentile: PC vs. NPC, p = .05; PC vs. Control, p = 0.01; NPC vs. Control, p = .27
  4. 3 N = 4587 for overall analyses and N = 2282 for BMI ≥ 85th percentile subgroup due to missing data
  5. 4 N = 3908 for overall analyses and N = 1937 for BMI ≥ 85th percentile subgroup due to missing data;
  6. 5 Adjusted for baseline value and gender; 6square root transformation used for analysis;
  7. 7N = 4157 for overall analyses and N = 2069 for BMI ≥ 85th percentile subgroup due to missing data