Table 5.
Linear mixed model fixed effect predictors of individually experienced HI in rest time (midnight-5am).
| Population | All | Rural residents | Urban residents | Urban OutWor |
|---|---|---|---|---|
| HI[neighborhood], HI[WS] AIC | 34925.50 | 17118.30 | 11224.00 | 6456.10 |
| HI[WS] only AIC | 34979.10 | 17162.30 | 11228.20 | 6455.70 |
| HI[neighborhood] only AIC | 34925.20 | 17117.50 | 11222.10 | 6456.00 |
| Model pick | HI[neighborhood] only | HI[neighborhood] only | HI[neighborhood] only | HI[WS] only |
| Fixed effects | β (95%CI) | β (95%CI) | β (95%CI) | β (95%CI) |
| Intercept | 16.43 (3.22, 29.64) | 10.78 (−9.14, 30.68) | 15.38 (−8.12, 38.89) | 30.26 (4.69, 55.84) |
| HI[neighborhood] (°C) | 0.36 (0.28, 0.44)* | 0.51 (0.37, 0.65)* | 0.28 (0.15, 0.41)* | NA |
| HI[WS] (°C) | NA | NA | NA | 0.30 (0.15, 0.46)* |
| Age | 0.01 (−0.04, 0.06) | −0.01 (−0.09, 0.06) | 0.05 (−0.03, 0.14) | 0.01 (−0.11, 0.14) |
| Education ≥high school | −0.30 (−1.57, 0.97) | −1.35 (−3.26, 0.57) | −0.38 (−2.72, 1.96) | 1.44 (−0.91, 3.78) |
| Annual household income ≥$20K | −0.23 (−1.61, 1.15) | 0.07 (−2.04, 2.19) | 1.17 (−1.53, 3.86) | −2.90 (−5.59, - 0.21)* |
| Weekend | −0.20 (−0.38, −0.02)* | −0.41 (−0.68, −0.13)* | −0.23 (−0.52, 0.05) | 0.16 (−0.22, 0.54) |
| Body fat (%) | −0.01 (−0.11, 0.09) | 0.09 (−0.07, 0.25) | −0.08 (−0.28, 0.11) | −0.11 (−0.27, 0.05) |
| WS wind speed (m/s) | 0.05 (−0.05, 0.15) | 0.18 (−0.05, 0.41) | −0.07 (−0.20, 0.06) | −0.06 (−0.24, 0.12) |
| Intervention | 0.17 (−0.01, 0.36) | −0.05 (−0.38, 0.27) | 0.46 (0.18, 0.75)* | 0.15 (−0.23, 0.54) |
| log(mean daily steps) | 0.12 (−1.23, 1.46) | 0.17 (−1.78, 2.13) | 0.51 (−1.97, 2.99) | −0.86 (−3.52, 1.80) |
| Employed | −0.69 (−2.14, 0.75) | −0.83 (−2.81, 1.15) | −0.78 (−3.17, 1.61) | NA |
| Rural residenta | 1.22 (−0.25, 2.69) | NA | NA | NA |
| Outdoor workera | −0.18 (−2.07, 1.71) | NA | NA | NA |
Note:
a
Compared to Urban resident.
‘*’
denotes a β estimates with a 95% confidence interval did not contain 0.
NA not applicable. NA in HI[WS] or HI[neighborhood] indicated that HI[WS] or HI[neighborhood]was not included in model selection based on AIC.