Table 3.

Linear mixed model fixed effect predictors of individually experienced HI in 24 hours.

Population	All	Rural residents	Urban residents	Urban OutWor
HI[neighborhood], HI[WS] AIC	159992.60	75521.80	51745.30	31346.60
HI[WS] only AIC	160200.10	75619.80	51809.00	31368.70
HI[neighborhood] only AIC	159990.60	75529.00	51743.40	31389.00
Model pick	HI[neighborhood] only	Both	HI[neighborhood] only	Both
Fixed effects	β (95%CI)	β (95%CI)	β (95%CI)	β (95%CI)
Intercept	17.66 (8.83, 26.49)	19.32 (6.25, 32.39)	15.39 (−0.14, 30.93)	12.07 (−5.03, 29.19)
HI[neighborhood] (°C)	0.20 (0.19, 0.21)*	0.17 (0.13, 0.20)*	0.20 (0.18, 0.23)*	0.20 (0.12, 0.28)*
HI[WS] (°C)	NA	−0.06 (−0.10, −0.02)*	NA	0.33 (0.23, 0.42)*
Age	0.01 (−0.02, 0.04)	0.00 (−0.05, 0.04)	0.04 (−0.02, 0.09)	−0.01 (−0.09, 0.08)
Education ≥high school	−0.20 (−1.05, 0.66)	−0.68 (−1.96, 0.59)	−0.10 (−1.66, 1.46)	1.07 (−0.51, 2.65)
Annual household income ≥$20K	−0.60 (−1.53, 0.34)	−0.09 (−1.50, 1.33)	−0.29 (−2.09, 1.50)	−1.53 (−3.35, 0.29)
Weekend	−0.50 (−0.65, −0.36)*	−0.29 (−0.47, −0.10)*	0.08 (−0.17, 0.33)	−1.63 (−2.03, −1.23)*
Body fat (%)	−0.05 (−0.12, 0.02)	0.05 (−0.06, 0.16)	−0.10 (−0.22, 0.03)	−0.15 (−0.25, −0.04)*
Non-rest time (5am-midnight)	1.37 (1.21, 1.53)*	0.65 (0.42, 0.87)*	1.56 (1.29, 1.82)*	2.55 (2.12, 2.98)*
WS wind speed (m/s)	0.25 (0.20, 0.30)*	0.31 (0.23, 0.38)*	0.29 (0.21, 0.36)*	0.23 (0.11, 0.36)*
Intervention	−0.26 (−0.40, −0.11)*	−0.30 (−0.50, −0.11)*	−0.11 (−0.35, 0.14)	−0.70 (−1.09, −0.31)*
log(mean daily steps)	0.67 (−0.24, 1.58)	0.46 (−0.84, 1.77)	0.86 (−0.79, 2.51)	0.90 (−0.89, 2.70)
Employed	−0.07 (−1.05, 0.90)	−0.83 (−2.15, 0.49)	0.89 (−0.71, 2.48)	NA
Rural residenta	0.43 (−0.56, 1.43)	NA	NA	NA
Outdoor workera	1.22 (−0.05, 2.50)	NA	NA	NA

Note:

^aCompared to Urban resident.

^‘*’ denotes a β estimates with a 95% confidence interval did not contain 0.

NA not applicable. NA in HI[WS] indicated that HI[WS] was not included in model selection based on AIC.