Table 4.
Examining the contributions of motorised travel distance, active travel distance and engine size (n = 3463), fitting model in Figure1
|
Multivariable probit regression coefficients and 95%CI for effects on total standardised log-transformed transport CO2emissions |
||||||
|---|---|---|---|---|---|---|
| Indirect via active + motorised travel (path 1) | Indirect via motorised travel only (path 2) | Indirect via engine size (path 3) | Direct (‘unexplained’) (path 4) | Total (sum of paths 1–4) | ||
| Weight status |
Normal |
0 |
0 |
0 |
0 |
0 |
| |
Overweight |
.022 (.010,.034) |
.124 (.042,.205) |
.008 (-.007,.024) |
.007 (-.017,.031) |
.161 (.077,.245) |
| |
Obese |
.022 (.007,.036) |
.127 (.011,.243) |
.028 (.004,.051) |
-.016 (-.049,.017) |
.161 (.043,.279) |
| General health |
Excellent/good |
0 |
0 |
0 |
0 |
0 |
| |
Fair |
.014 (.000,.028) |
-.070 (-.160,.020) |
-.004 (-.025,.016) |
.008 (-.021,.036) |
-.052 (-.145,.041) |
| |
Poor |
.024 (-.006,.053) |
-.171 (-.362,.020) |
-.018 (-.062,.027) |
.011 (-.044,.067) |
-.153 (-.341,.035) |
| Long-term illness |
No |
0 |
0 |
0 |
0 |
0 |
| |
Yes |
.017 (.003,.031) |
.007 (-.094,.109) |
-.004 (-.026,.018) |
.014 (-.017,.044) |
.034 (-.069,.137) |
| Walking for recreation in past week |
None |
0 |
0 |
0 |
0 |
0 |
| |
1-149 min |
-.022 (-.036,-.008) |
.182 (.101,.263) |
-.007 (-.024,.011) |
.002 (-.024,.027) |
.155 (.071,.240) |
| |
150-419 min |
-.033 (-.048,-.017) |
.217 (.123,.312) |
.019 (−.003,.040) |
-.016 (-.046,.014) |
.188 (.090,.286) |
| |
≥420 min |
-.042 (-.062,-.022) |
.198 (.072,.324) |
.016 (-.011,.044) |
-.033 (-.069,.003) |
.139 (.008,.270) |
| Cycling for recreation in past week |
None |
0 |
0 |
0 |
0 |
0 |
| |
1-149 min |
-.037 (-.058,-.016) |
-.094 (-.215,.026) |
.001 (-.024,.026) |
-.014 (-.048,.019) |
-.145 (-.271,-.018) |
| |
≥150 min |
-.074 (-.103,-.045) |
-.125 (-.282,.031) |
-.010 (-.047,.027) |
-.014 (-.052,.025) |
-.223 (-.383,-.062) |
| Other leisure-time MVPA in past week |
None |
0 |
0 |
0 |
0 |
0 |
| |
1-149 min |
-.012 (−.024,.000) |
.161 (.075,.247) |
-.001 (-.018,.017) |
.004 (-.022,.029) |
.152 (.061,.243) |
| |
150-419 min |
-.011 (-.023,.001) |
.231 (.135,.327) |
-.001 (-.020,.019) |
.007 (-.022,.036) |
.227 (.128,.325) |
| ≥420 min | -.001 (-.017,.015) | .168 (.039,.297) | .020 (-.008,.048) | -.007 (-.044,.030) | .181 (.047,.315) | |
CI = confidence interval, MVPA = moderate-to-vigorous physical activity. Analyses adjust for all variables in columns and in Table 1. Endogenous distance and CO2 variables are standardised log-transformed. Note that the ‘total effects’ in this table are equivalent to the results shown in multivariable model 2 of Table 2, except that these are probit rather than linear regression coefficients.