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Table 4 Gender-stratified analysis of mediation effect of health literacy

From: The impact of social capital on physical activity and nutrition in China: the mediating effect of health literacy

ModelPathTotalMaleFemale
β95% CIp-valueProportion mediatedβ95% CIp-valueProportion mediatedβ95% CIp-valueProportion mediated
social participation to physical activityTotal effect (c)0.758(0.667, 0.849)< 0.001 0.798(0.654, 0.942)< 0.001 0.735(0.615, 0.856)< 0.001 
Direct effect (c’)0.693(0.602, 0.784)< 0.001 0.721(0.580, 0.863)< 0.001 0.682(0.561, 0.503)< 0.001 
Indirect effect (a x b)0.065(0.035, 0.100) 8.58%0.077(0.027, 0.139) 9.65%0.054(0.019, 0.097) 7.35%
social networks to physical activityTotal effect (c)1.572(1.311, 1.833)< 0.001 1.515(1.107, 1.923)< 0.001 1.601(1.262, 1.941)< 0.001 
Direct effect (c’)1.439(1.188, 1.691)< 0.001 1.368(0.979, 1.757)< 0.001 1.490(1.160, 1.821)< 0.001 
Indirect effect (a x b)0.133(0.045, 0.239) 8.46%0.147(−0.002, 0.322) 0.112(0.004, 0.229) 7.00%
social support to physical activityTotal effect (c)0.768(0.685, 0.852)< 0.001 0.822(0.695, 0.948)< 0.001 0.721(0.609, 0.834)< 0.001 
Direct effect (c’)0.706(0.620, 0.791)< 0.001 0.749(0.615, 0.883)< 0.001 0.671(0.558, 0.784)< 0.001 
Indirect effect (a x b)0.063(0.034, 0.099) 8.20%0.073(0.016, 0.139) 8.88%0.050(0.017, 0.091) 6.93%
Control over life to physical activityTotal effect (c)0.933(0.734, 1.131)< 0.001 0.976(0.675, 1.278)< 0.001 0.899(0.635, 1.163)< 0.001 
Direct effect (c’)0.815(0.622, 1.008)< 0.001 0.787(0.489, 1.086)< 0.001 0.839(0.585, 1.094)< 0.001 
Indirect effect (a x b)0.118(0.055, 0.189) 12.65%0.189(0.080, 0.325) 19.36%0.060(−0.011, 0.144) 
feelings about the community to physical activityTotal effect (c)0.868(0.697, 1.039)< 0.001 0.731(0.459, 1.002)< 0.001 0.983(0.766, 1.200)< 0.001 
Direct effect (c’)0.765(0.599, 0.931)< 0.001 0.610(0.349, 0.872)< 0.001 0.898(0.684, 1.111)< 0.001 
Indirect effect (a x b)0.103(0.046, 0.168) 11.87%0.12(0.027, 0.238) 16.42%0.085(0.024, 0.164) 8.65%
social participation to nutritionTotal effect (c)0.354(0.265, 0.444)< 0.001 0.376(0.243, 0.509)< 0.001 0.332(0.207, 0.457)< 0.001 
Direct effect (c’)0.309(0.219, 0.400)< 0.001 0.320(0.187, 0.453)< 0.001 0.298(0.171, 0.425)< 0.001 
Indirect effect (a x b)0.045(0.022, 0.073) 12.71%0.056(0.018, 0.105) 14.89%0.034(0.006, 0.071) 10.24%
social networks to nutritionTotal effect (c)0.976(0.740, 1.211)< 0.001 0.880(0.533, 1.226)< 0.001 1.038(0.714, 1.362)< 0.001 
Direct effect (c’)0.896(0.663, 1.130)< 0.001 0.784(0.445, 1.123)< 0.001 0.979(0.655, 1.302)< 0.001 
Indirect effect (a x b)0.079(0.025, 0.145) 8.09%0.096(−0.002, 0.217) 0.059(0.001, 0.135) 5.68%
social support to nutritionTotal effect (c)0.510(0.431, 0.589)< 0.001 0.519(0.405, 0.633)< 0.001 0.498(0.388, 0.609)< 0.001 
Direct effect (c’)0.477(0.394, 0.559)< 0.001 0.472(0.350, 0.593)< 0.001 0.476(0.363, 0.589)< 0.001 
Indirect effect (a x b)0.034(0.009, 0.061) 6.67%0.048(0.002, 0.100) 9.25%0.023(−0.003, 0.053) 
Control over life to nutritionTotal effect (c)0.779(0.609, 0.950)< 0.001 0.728(0.481, 0.975)< 0.001 0.826(0.590, 1.063)< 0.001 
Direct effect (c’)0.714(0.544, 0.885)< 0.001 0.614(0.364, 0.864)< 0.001 0.796(0.561, 1.030)< 0.001 
Indirect effect (a x b)0.065(0.028, 0.114) 8.34%0.114(0.037, 0.217) 15.66%0.031(−0.006, 0.081) 
feelings about the community to nutritionTotal effect (c)0.994(0.858, 1.131)< 0.001 0.933(0.730, 1.136)< 0.001 1.048(0.863, 1.233)< 0.001 
Direct effect (c’)0.946(0.809, 1.082)< 0.001 0.868(0.668, 1.069)< 0.001 1.015(0.828, 1.202)< 0.001 
Indirect effect (a x b)0.049(0.019, 0.085) 4.93%0.065(0.014, 0.133) 6.97%0.033(0.001, 0.077) 3.15%