R e s e a r c h r e p o r t Independent predictor variables Block 1 Self-rated active ageing Block 2 QoL domain self-ratings QOL: health QoL: social relationships QoL: independence, control over life, freedom QoL: home and neighbourhood QoL: psychological and emotional well- being QoL: ﬁnancial circumstances QoL: leisure and social activities Block 3 Total number of different social activities done in last month (out of listed eight) Total number of relatives, friends, neighbours who would help with practical tasks Block 4 Self-rated health status, compared to others of same age ADL total score (sum of ability to: walk 400 yards, do heavy housework, shop/ carry heavy bags, steps/stairs) Block 5 Age Sex Marital status Block 6 Housing tenure Constant R2 Adjusted R2 ONS Omnibus Unstandardised B Standardised b 0.532 0.064 0.683 0.081 0.693 0.078 1.236 0.138 1.027 0.106 0.920 0.100 1.303 0.162 0.039 0.004 0.146 0.034 0.028 0.037 0.963 0.131 0.289 0.142 0.053 0.047 0.333 0.020 0.189 0.026 0.030 0.004 61.749 0.581 0.568 0.705 to 0.784(0.104) 0.917 NS 0.106 0.018 95% CI (Two-tailed t test) p Value 1.157 to 0.093 (‑1.672) 0.095 NS 1.455 to 0.088 ( 1.740) 0.082 NS 1.369 to 0.017( 2.013) 0.045 1.960 to 0.001 1.774 to 0.007 1.553 to 0.004 1.978 to ( 3.796) 0.0001 0.512( 3.352) 0.279( 2.697) 0.288( 2.858) 0.629 0.174 to 0.466(0.896) 0.371 NS 0.017 to 0.072(1.227) 0.220 NS 1.599 to 0.003 0.458 to 0.001 0.327( 2.975) 0.119( 3.334) 0.127 to 0.021( 1.404) 0.161 NS 0.629 to 1.295 (0.680) 0.496 NS 0.255 to 0.633 (0.836) 0.403 NS 0.518 to 0.458 ( 0.121) 0.904 NS Table 4 Multiple regression of predictors of CASP-19:ONS OMNIBUS and Ethnibus (ﬁnal models) Anova F statistic, p value 45.151; 0.0001 ADL, activities of daily living; NS, not signiﬁcant; QOL, Quality of Life. 5.089; 0.001 themselves: the OPQOL. It was tested in two cross-sectional, and one longitudinal, surveys of older people across Britain. The longitudinal survey enabled the OPQOL to be tested in a dynamic, ageing population and an assessment of its under- lying model, although its self-administration mode necessitated the assessment of the OPQOL only (and not the CASP-19 or WHOQOL) in this older sample. The surveys used statistically robust sampling methods, and the response rates were fairly to very good. The characteristics of respondents to the ONS Omnibus and Ethnibus surveys (and 278 J Epidemiol Community Health 2011;65:273e280. doi:10.1136/jech.2009.087668 Ethnibus Unstandardised B Standardised b 0.672 0.143 0.690 0.118 0.182 0.031 0.386 0.065 0.237 0.063 0.659 0.110 0.566 0.096 0.431 0.079 0.010 0.013 0.692 0.136 0.038 0.027 0.086 0.062 0.363 0.036 0.052 0.008 0.440 0.101 51.095 0.175 0.141 95% CI (Two-tailed t test) 0.197 0.143( 2.478) p Value 1.147 to ( 2.782) 0.006 1.237 to 0.014 0.375 to 0.738 (0.642) 0.522 NS 0.948 to 0.176 ( 1.351) 0.178 NS 0.695 to 0.484 ( 0.352) 0.725 NS 1.270 to 0.047 ( 2.117)0.035 1.113 to 0.020 ( 2.036) 0.0420 0.962 to 0.101 ( 1.593) 0.112 NS 0.121 to 0.594 (1.301) 0.194 NS 0.085 to 0.064 ( 0.274) 0.784 NS 0.106 1.278 to ( 2.321) 0.021 0.200 to 0.124 ( 0.460) 0.646 NS 0.214 to 0.043 ( 1.313) 0.190 NS 0.590 to 1.317 (0.749) 0.454 NS 0.637 to 0.532 ( 0.176) 0.860 NS 0.846 to ( 2.135) 0.033 0.035