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. 2017 Apr 20;17:345. doi: 10.1186/s12889-017-4269-9

Table 4.

The explanatory power of potential mediating variables in explaining the relationship between social class and poor self-rated health among South Korean employed men aged 19–64. (reference group: managers)

Capitalists Small employers Petty Bourgeoisie Expert supervisors Skilled supervisors Nonskilled supervisors Experts Skilled workers Nonskilled workers
Model 1: Baseline model PR (95% CI) 1.85 (0.64–5.35) 2.89 (1.19–7.02) 3.97 (1.67–9.47) 3.02 (1.20–7.62) 2.34 (0.93–5.87) 3.06 (1.26–7.45) 2.23 (0.82–6.04) 2.80 (1.07–7.29) 3.78 (1.59–9.03)
Model 2: Baseline + material factors PR (95% CI) 1.88 (0.65–5.43) 2.84 (1.17–6.91) 3.74 (1.57–8.93) 3.04 (1.20–7.66) 2.34 (0.93–5.87) 2.94 (1.21–7.17) 2.23 (0.83–6.05) 2.75 (1.05–7.16) 3.56 (1.49–8.51)
PR change (%) −3.3 2.7 7.8 −0.9 0.3 5.8 −0.2 2.8 8.1
Model 3: Baseline + behavioral factors PR (95% CI) 1.79 (0.62–5.17) 2.78 (1.15–6.76) 3.83 (1.61–9.11) 2.98 (1.18–7.49) 2.38 (0.95–5.95) 2.95 (1.21–7.17) 2.30 (0.85–6.21) 2.81 (1.08–7.30) 3.63 (1.52–8.66)
PR change (%) 7.3 5.7 4.9 2.0 −2.5 5.6 −5.4 −0.4 5.6
Model 4: Baseline + psychosocial factors PR (95% CI) 1.55 (0.54–4.46) 2.71 (1.13–6.50) 4.08 (1.73–9.58) 2.99 (1.21–7.42) 2.25 (0.91–5.57) 3.01 (1.26–7.23) 2.39 (0.90–6.39) 2.87 (1.12–7.38) 3.88 (1.65–9.13)
PR change (%) 35.2 9.6 −3.5 1.3 6.7 2.4 −13.1 −4.2 −3.5
Model 5: Baseline + workplace environmental factors PR (95% CI) 1.73 (0.60–5.01) 2.61 (1.07–6.35) 3.40 (1.42–8.15) 2.80 (1.11–7.05) 2.17 (0.86–5.43) 2.57 (1.05–6.26) 2.03 (0.75–5.49) 2.35 (0.90–6.15) 2.92 (1.21–7.01)
PR change (%) 13.8 15.0 19.2 11.1 13.1 24.1 16.8 24.8 31.1
Model 6: Baseline + all factors PR (95% CI) 1.48 (0.52–4.24) 2.46 (1.03–5.87) 3.45 (1.47–8.10) 2.81 (1.14–6.94) 2.16 (0.88–5.33) 2.56 (1.06–6.14) 2.29 (0.86–6.11) 2.56 (1.00–6.56) 3.04 (1.29–7.20)
PR change (%) 43.3 23.0 17.7 10.5 13.3 24.5 −4.6 13.5 26.6

CI confidence interval, PR prevalence ratio. PR change: percentage change in prevalence ratio = 100×((PR in baseline model) – (PR in model adjusted for risk factor))/((PR in baseline model) – 1). The baseline model (model 1) for prevalence ratio refers to the model only adjusted for age