Table 2

Primary and secondary health outcomes and intervention effect-estimates

 Summary statistics
Mean of continuous and prevalence of binary outcomes*
Effect-estimates Risk ratio for binary outcomes, mean difference for continuous outcomes
Control (95% CI)Intervention (95% CI)Unadjusted (95% CI)p ValueAdjusted† (95% CI)p Value
Primary health outcomes
Healthy eating—meeting five-a-day (fruit and vegetable portions) %53.4 (47.6 to 59.3)55.6 (50.3 to 60.9)1.02 (0.89 to 1.17)0.71.04 (0.93 to 1.17)0.5
Physical activity—meeting 5×30 min moderate intensity activity per week, %66.5 (59.0 to 74.0)68.4 (63.5 to 73.2)1.04 (0.89 to 1.22)0.61.01 (0.88 to 1.16)0.9
Mental well-being
 Abnormal/borderline GHQ12 score %6.1 (4.7 to 7.6)7.2 (5.5 to 8.9)1.17 (0.84 to 1.63)0.31.15 (0.82 to 1.61)0.9
 Warwick Edinburgh Mental Well-Being Scale; mean score‡60.1 (58.3 to 61.9)58.7 (56.8 to 60.5)−1.59 (−4.10 to 0.91)0.2−1.52 (−3.93 to 0.88)0.2
Secondary health outcomes
Unhealthy eating—mean score§2.7 (2.6 to 2.8)2.5 (2.5 to 2.6)−0.12 (−0.27 to 0.02)0.08−0.14 (−0.27 to −0.02)0.03
Healthy eating—number of portions of fruit and vegetables per day—mean5.2 (5.0 to 5.5)5.3 (5.0 to 5.6)0.13 (−0.27 to 0.53)0.50.11 (−0.23 to 0.45)0.5
Physical activity
 Meeting 7×60 min moderate intensity activity per week %30.0 (21.6 to 38.5)31.6 (24.6 to 38.6)1.10 (0.62 to 1.94)0.71.02 (0.65 to 1.62)0.9
 Doing 150 min of moderate intensity activity per week %75.4 (68.0 to 82.9)77.0 (72.4 to 81.5)1.03 (0.89 to 1.20)0.61.00 (0.88 to 1.14)1.0
 Mean MET-minutes per week—mean2626 (1978 to 3279)2659 (2085 to 3233)4.2 (−778 to 787)1.0−113 (−847 to 621)0.7
 Mental well-being– mean GHQ 12 score¶0.7 (0.6 to 0.8)0.7 (0.5 to 0.8)−0.003 (−0.13 to 0.12)1.0−0.01 (−0.15 to 0.12)0.4
  • *Overall mean or prevalence pooled over clusters (CI adjusted for clustering).

  • †Adjustment for age, gender, ethnicity, education, employment, appropriate baseline values.

  • ‡Higher score indicates better mental well-being.

  • §Higher score indicates more unhealthy food consumption.

  • ¶Higher score indicates poorer mental health.

  • GHQ, General Health Questionnaire.