| Path a | Path b | Total effect (Path c) | Direct effect (Path c') | Bootstrapped | % |
---|---|---|---|---|---|---|
Dependent variables (dv) | mv regressed on IAF | dv regressed on mv | dv regressed on IAF | dv regressed on IAF | Indirect Effect | Mediated |
 |  | controlling for IAF |  | controlling for mv |  |  |
MEN | Â | Â | Â | Â | Â | Â |
log CASS, n = 178 | 0.060 (0.025, 0.094) | 0.061 (0.027, 0.095) | 0.006 (−0.002, 0.013) | 0.002 (−0.006, 0.010) | 0.004 (0.001, 0.007) | 64.7 |
post FEV1, n = 178 |  |  |  |  |  |  |
 Litres | 0.060 (0.025, 0.094) | −0.047 (−0.080, -0.014) | −0.012 (−0.019, -0.005) | −0.009 (−0.017, -0.002) | −0.003 (−0.006, -0.001) | 23.4 |
 PPV (Gore et al.[17]) | 0.061 (0.026, 0.096) | −1.462 (−2.370, -0.555) | −0.344 (−0.553, -0.135) | −0.255 (−0.466, -0.045) | −0.087 (−0.187, -0.026) | 25.8 |
post FVC, n = 176 |  |  |  |  |  |  |
 Litres | 0.060 (0.026, 0.095) | −0.040 (−0.079, -0.002) | −0.020 (−0.029, -0.011) | −0.018 (−0.027, -0.009) | −0.002 (−0.006, -0.000) | 12.1 |
 PPV (Gore et al.[17]) | 0.061 (0.026, 0.096) | −1.271 (−2.104, -0.439) | −0.467 (−0.658, -0.275) | −0.389 (−0.583, -0.196) | −0.076 (−0.154, -0.025) | 16.6 |
WOMEN | Â | Â | Â | Â | Â | Â |
log CASS, n = 271 | 0.024 (−0.001, 0.049) | 0.054 (0.023, 0.085) | 0.010 (0.003, 0.016) | 0.008 (0.002, 0.015) | 0.001 (0.000, 0.003) | 13.7 |
post FEV1, n = 267 |  |  |  |  |  |  |
 Litres | 0.021 (−0.004, 0.047) | −0.018 (−0.044, 0.009) | −0.005 (−0.010, 0.001) | −0.004 (−0.010, 0.002) | −0.000 (−0.002, 0.000) | 8.5 |
 PPV (Gore et al.[17]) | 0.021 (−0.004, 0.047) | −0.821 (−1.810, 0.167) | −0.204 (−0.409, 0.001) | −0.186 (−0.392, 0.020) | −0.019 (−0.066, 0.001) | 8.6 |
post FVC, n = 254 |  |  |  |  |  |  |
 Litres | 0.022 (−0.005, 0.048) | −0.013 (−0.044, 0.019) | −0.008 (−0.014, -0.001) | −0.007 (−0.014, -0.001) | −0.000 (−0.002, 0.000) | 3.7 |
 PPV (Gore et al.[17]) | 0.021 (−0.005, 0.048) | −0.587 (−1.551, 0.377) | −0.263 (−0.461, -0.064) | −0.250 (−0.449, -0.051) | −0.013 (−0.065, 0.006) | 4.8 |