Table 2.
Factors associated with concerns about extreme heat and heat-related injury, attitudes for more training and regulation: bivariate analysis (unadjusted) and multiple stepwise logistic regressions (adjusted)
| Independent variable | Concern for extreme heat | Concern for heat-related injury | Attitude for more training | Attitude for more regulation | ||||
|---|---|---|---|---|---|---|---|---|
| Unadjusted OR(95%CI) | Adjusted OR(95%CI) | Unadjusted OR(95%CI) | Adjusted OR(95%CI) | Unadjusted OR(95%CI) | Adjusted OR(95%CI) | Unadjusted OR(95%CI) | Adjusted OR(95%CI) | |
| Gender | ||||||||
| Female | 1 | 1 | 1 | 1 | 1 | |||
| Male | 1.04 (0.90–1.22) | 1.01 (0.85–1.20) | 1.01 (0.90–1.13) | 2.94 (1.03–7.69) | 1.09 (1.00–1.19) | |||
| Age group (years) | ||||||||
| ≤ 24 | 1 | 1 | 1 | 1 | 1 | |||
| 25–34 | 0.61 (0.28–0.93) | 0.82 (0.72–0.94) | 1.07 (0.92–1.23) | 0.96 (0.87–1.05) | 0.94 (0.88–1.02) | |||
| 35–54 | 0.40 (0.14–0.66) | 0.83 (0.70–0.98) | 1.12 (0.93–1.35) | 0.92 (0.82–1.04) | 0.91 (0.84–1.01) | |||
| ≧55 | 0.31 (0.04–0.56) | 0.53 (0.34–0.83) | 0.98 (0.61–1.57) | 1.00 (0.73–1.38) | 0.90 (0.71–1.15) | |||
| Education level | ||||||||
| Primary or secondary school | 1 | 1 | 1 | 1 | ||||
| High school/vocational high school | 0.82 (0.30–2.26) | 0.91 (0.66–1.28) | 0.93 (0.76–1.16) | 0.87 (0.73–1.03) | ||||
| Training school | 1.43 (0.26–8.26) | 1.19 (0.89–1.60) | 0.92 (0.77–1.11) | 0.99 (0.85–1.15) | ||||
| Undergraduate college | 1.47 (1.12–1.83) | 1.25 (1.04–1.47) | 0.93 (0.77–1.12) | 0.99 (0.85–1.15) | ||||
| Postgraduate | 1.85 (1.18–2.42) | 1.83 (1.12–2.57) | 1.15 (0.79–1.67) | 1.18 (1.06–1.39) | ||||
| Workplace environment | ||||||||
| Completely indoors | 1 | 1 | 1 | 1 | ||||
| Mainly indoors | 1.17 (0.99–1.40) | 1.07 (0.89–1.30) | 0.97 (0.86–1.09) | 1.04 (0.94–1.15) | ||||
| Completely outdoors | 1.41 (1.12–1.71) | 1.11 (0.76–1.62) | 0.96 (0.76–1.22) | 0.94 (0.78–1.14) | ||||
| Mainly outdoors | 1.13 (0.92–1.36) | 1.05 (0.85–1.31) | 0.97 (0.84–1.11) | 1.03 (0.92–1.15) | ||||
| Physically demanding | ||||||||
| Not at all | 1 | 1 | 1 | 1 | 1 | |||
| A little | 1.25 (0.85–1.61) | 1.89 (0.83–4.12) | 1.16 (0.96–1.40) | 1.06 (0.94–1.21) | 1.01 (0.91–1.11) | |||
| Moderately | 1.44 (0.95–1.92) | 1.92 (0.88–4.17) | 1.10 (0.76–1.56) | 1.05 (0.92–1.20) | 0.94 (0.85–1.04) | |||
| Very much | 1.45 (1.11–1.79) | 1.23 (1.04–1.43) | 1.22 (1.01–1.47) | 1.15 (0.90–1.45) | 1.16 (1.05–1.29) | |||
| Work close to heat sources | ||||||||
| No | 1 | 1 | 1 | 1 | 1 | |||
| Yes | 0.86 (0.64–1.15) | 1.22 (1.03–1.41) | 1.37 (1.04–1.85) | 0.95 (0.77–1.17) | 0.87 (0.74–1.02) | |||
| Use of personal protective equipment | ||||||||
| No | 1 | 1 | 1 | 1 | 1 | |||
| Yes | 1.19 (1.09–1.29) | 0.98 (0.85–1.13) | 1.18 (1.03–1.35) | 1.11 (1.02–1.20) | 0.97 (0.90–1.04) | |||
| Heat illness experience | ||||||||
| No | 1 | 1 | 1 | 1 | ||||
| Yes | 0.97 (0.80–1.19) | 2.76 (1.19–6.43) | 1.04 (0.90–1.20) | 0.99 (0.89–1.11) | ||||
| Heat-related injury experience | ||||||||
| No | 1 | 1 | 1 | 1 | 1 | 1 | ||
| Yes | 1.43 (1.05–1.78) | 1.30 (1.03–1.62) | 1.69 (1.25–2.13) | 1.39 (1.08–1.77) | 0.98 (0.84–1.15) | 0.96 (0.85–1.09) | ||
| Heat-related injury witnessed | ||||||||
| No | 1 | 1 | 1 | 1 | 1 | 1 | ||
| Yes | 1.14 (1.03–1.26) | 1.12 (1.02–1.27) | 2.01 (1.16–3.49) | 1.08 (1.01–1.16) | 1.09 (1.00–1.20) | 1.03 (0.96–1.11) | ||
| Attending heat training | ||||||||
| No | 1 | 1 | 1 | 1 | 1 | 1 | ||
| Yes | 1.07 (0.94–1.22) | 1.06 (0.92–1.23) | 1.58 (1.21–1.95) | 1.15 (1.04–1.26) | 3.61 (1.19–9.98) | 1.07 (1.00–1.15) | ||
| Knowing high temperature regulations | ||||||||
| No | 1 | 1 | 1 | 1 | 1 | |||
| Yes | 0.90 (0.79–1.05) | 0.98 (0.84–1.15) | 2.74 (1.11–6.79) | 4.71 (2.26–9.93) | 1.11 (1.02–1.20) | |||
| Adjusting work habits | ||||||||
| No | 1 | 1 | 1 | 1 | ||||
| Yes | 1.07 (1.03–1.13) | 0.97 (0.84–1.13) | 0.93 (0.84–1.03) | 0.94 (0.87–1.02) | ||||
| High-temperature subsidies received | ||||||||
| No | 1 | 1 | 1 | 1 | ||||