ӣƵ

Skip to main content

Table 2 Follow-up characteristics of participants in the “Join the Healthy Boat” study

From: Does the intervention of the school-based health promotion programme “Join the Healthy Boat” have equal or differential effects on weight status and health-related behaviours in children from a high or low socio-economic background? – A randomised controlled trial

Missing Values

Total (n = 1540)

High SES (n = 426a)

Low SES (n = 938a)

Difference btw. high and low SES

n

Intervention (n = 850)

Control (n = 690)

Intervention (n = 237)

Control (n = 189)

Intervention (n = 506)

Control (n = 432)

p

Age, years [m (sd)]

8.1 (0.6)

8.1 (0.6)

8.0 (0.6)

8.0 (0.6)

8.1 (0.7)

8.11 (0.7)

0.027

Anthropometry

 Height, cm [m (sd)]

28

129.9 (6.6)

130.0 (6.4)

129.7 (6.4)

129.5 (6.3)

130.2 (6.8)

130.2 (6.5)

0.098

 Weight, kg [m (sd)]

33

28.0 (6.6)

27.6 (5.3)

27.0 (6.4)

26.9 (4.7)

28.6 (6.8)

27.9 (5.5)

 &; 0.001

 BMIPERC [m (sd)]

33

48.9 (28.8)

47.2 (27.7)

43.9 (26.7)

43.8 (27.6)

51.5 (29.4)

48.5 (27.7)

 &; 0.001

 Overweight and obesity [n (%)]

33

93 (11.2)

60 (8.9)

12 (5.1)

14 (7.6)

72 (14.5)

40 (9.4)

 &; 0.001

Health and lifestyle characteristics

 MVPA on ≥ 4 days/week ≥ 60 min/day [n (%)]

158

217 (28.7)

169 (27.0)

82 (36.6)

60 (34.3)

111 (25.3)

94 (24.0)

 &; 0.001

 Screen media use > 1 h/day [n (%)]

121

92 (11.9)

93 (14.4)

16 (7.0)

16 (8.9)

64 (14.2)

62 (15.5)

 &; 0.001

 Soft drink intake > 1 time/week [n (%)]

124

159 (20.6)

138 (21.4)

31 (13.6)

19 (10.5)

107 (23.9)

101 (25.2)

 &; 0.001

 Breakfast skipping [n (%)]

123

86 (11.2)

84 (13.0)

6 (2.6)

14 (7.8)

69 (15.4)

63 (15.7)

 &; 0.001

  1. m (sd) mean (standard deviation), SES Socio-economic background (as a combination of parental education level and household income), BMIPERC BMI percentiles, MVPA Moderate to vigorous physical activity
  2. aOne hundred seventy-six children could not be allocated to either high or low SES as data on household income was missing. They still remain in the “total” group since independent analyses of both variables used to define SES (parental education and household income) were performed, too