Survey outcome | Intervention phase | Control phase | Adjusted comparison*†‡ | ||||
Mean (SD) | (n) | Mean (SD) | (n) | Δ | (95%CI) | P values | |
SF12 mental health component: all | 43.77 (9.67) | (1410) | 44.62 (9.47) | (662) | −0.720 | (−1.469 to 0.030) | 0.060 |
Risk group 1 | 49.44 (8.34) | (242) | 49.03 (8.07) | (83) | 1.736 | (0.106 to 3.366) | 0.037 |
Risk group 2 | 43.72 (8.97) | (381) | 45.18 (8.85) | (163) | −0.802 | (−2.222 to 0.618) | 0.268 |
Risk group 3 | 42.54 (9.53) | (659) | 44.13 (9.80) | (322) | −1.187 | (−2.317 to -0.056) | 0.040 |
Risk group 4 | 39.61 (10.35) | (127) | 41.45 (9.10) | (94) | −1.911 | (−4.079 to 0.258) | 0.084 |
SF12 physical health component: all | 41.72 (9.20) | 40.07 (7.30) | 1.465 | (0.774 to 2.157) | <0.001 | ||
Risk group 1 | 34.41 (9.09) | 36.77 (7.62) | −4.385 | (−6.106 to -2.664) | <0.001 | ||
Risk group 2 | 41.90 (8.18) | 40.65 (7.12) | 0.882 | (−0.345 to 2.108) | 0.159 | ||
Risk Group 3 | 43.54 (8.45) | 40.18 (7.15) | 3.205 | (2.218 to 4.191) | <0.001 | ||
Risk group 4 | 45.56 (8.76) | 41.61 (7.11) | 4.103 | (2.230 to 5.977) | 0.035 | ||
SF6D score: all | 0.638 (0.068) | (1467) | 0.638 (0.072) | (692) | −0.0002 | (−0.008 to 0.004) | 0.584 |
Risk group 1 | 0.629 (0.069) | (247) | 0.642 (0.077) | (83) | -0.019 | (−0.034 to -0.003) | <0.001 |
Risk group 2 | 0.639 (0.072) | (399) | 0.641 (0.075) | (166) | −0.003 | (−0.015 to 0.010) | 0.649 |
Risk group 3 | 0.641 (0.067) | (690) | 0.638 (0.070) | (341) | 0.002 | (−0.006 to 0.010) | 0.628 |
Risk group 4 | 0.635 (0.060) | (130) | 0.633 (0.069) | (102) | 0.002 | (−0.013 to 0.017) | 0.787 |
QCM score: all | 4.20 (0.74) | (1408) | 4.27 (0.70) | (660) | −0.074 | (−0.133 to -0.015) | 0.014 |
Risk group 1 | 4.19 (0.72) | (189) | 3.96 (0.86) | (62) | 0.169 | (−0.030 to 0.368) | 0.095 |
Risk group 2 | 4.24 (0.69) | (391) | 4.28 (0.72) | (162) | −0.080 | (−0.191 to 0.031) | 0.156 |
Risk group 3 | 4.20 (0.74) | (697) | 4.36 (0.61) | (340) | −0.107 | (−0.186 to -0.029) | 0.008 |
Risk group 4 | 4.04 (0.87) | (130) | 4.13 (0.76) | (96) | −0.100 | (−0.286 to 0.086) | 0.291 |
*online supplementary table 2 shows significant covariates and factors.
†Covariates considered were: phase; gender; age; PRISM score; WIMD score; WIMD health component on or near 1 February 2013) and seasonality and trend scores for phases.
‡The comparison between phases is summarised as an additive phase effect Δ in the same units as the dependent variable, estimated from mixed linear models.
PRISM, predictive risk stratification model; QCM, quality of care monitor; WIMD, Welsh Index of Multiple Deprivation.