Models of change in recreational physical activity (Table 3) followed a similar pattern to overall activity, where participants living in the greenest areas presented a mean difference of 4.9 MET h/wk more than participants living in the least green when adjusted for baseline activity (Model 1), reducing to 4.0 MET h/wk when adjusted for age, sex, BMI, social class and marital status (Model 2). Participants living in the greenest areas also experienced a slower decline in outdoor physical activity (Table 4) with a difference of 1.7 MET h/wk compared to those in the least green areas (Model 1), reducing to 1.3 MET h/wk when adjusted for age, sex, BMI, social class and marital status (Model 2). Neighbourhood deprivation was not statistically significantly associated with outcomes in any of the models.Table 3Regression models for change in recreational physical activity between baseline and follow-up, according to quartile of greenspace.Table 3.Model 1 Adjusted for baseline PA (n=10852, adjusted R2 19.3%)Model 2 Adjusted for baseline PA, age, sex, BMI, social class and marital status (n=10649, adjusted R2 21.7%)95% CI95% CICoeff.LowerUpperPP trendCoeff.LowerUpperPP trendQuartile of greenspace: quartile 1 (least green, ref)1.00<0.0011.00<0.001 quartile 20.92−0.752.590.2790.87−0.792.520.306 quartile 32.020.353.690.0181.53−0.133.190.071 quartile 4 (most green)4.893.226.56<0.0014.032.365.71<0.001Baseline PA (MET h/wk)−0.52−0.54−0.50<0.001−0.53−0.55−0.51<0.001Age at 2HC (years)−0.50−0.57−0.43<0.001Sex (ref=female)6.164.947.39<0.001BMI (kg/m2)−0.28−0.43−0.13<0.001Social class (ref=non-manual)−0.74−1.970.480.233Marital status (ref=not married)2.330.763.910.004Constant16.7915.4518.13<0.00151.1045.1957.00<0.001Table 4Regression models for change in outdoor physical activity between baseline and follow-up, according to quartile of greenspace.Table 4.Model 1 Adjusted for baseline PA (n=15636, adjusted R2 19.8%)Model 2 Adjusted for baseline PA, age, sex, BMI, social class and marital status (n=15116, adjusted R2 19.8%)95% CI95% CICoeff.LowerUpperPP trendCoeff.LowerUpperPP trendQuartile of greenspace: quartile 1 (least green, ref)1.00<0.0011.000.007 quartile 20.73−0.141.610.1010.77−0.131.670.095 quartile 31.070.201.950.0170.85−0.061.750.066 quartile 4 (most green)1.740.862.62<0.0011.280.382.190.006Baseline PA (MET h/wk)−0.74−0.76−0.71<0.001−0.74−0.76−0.71<0.001Age at 2HC (years)−0.19−0.22−0.15<0.001Sex (ref=female)0.53−0.121.180.112BMI (kg/m2)−0.16−0.24−0.08<0.001Social class (ref=non-manual)−0.71−1.37−0.050.036Marital status (ref=not married)1.030.201.860.015Constant3.643.004.29<0.00119.1115.9322.30<0.001