Variables (total n) | Overall | HR | SG | PA | IR | N | SM |
---|---|---|---|---|---|---|---|
Age (years) | |||||||
 50–60 (131) | 2.63 ± 0.38 | 2.37 ± 0.52 | 2.79 ± 0.52 | 2.40 ± 0.57 | 2.86 ± 0.42 | 2.64 ± 0.43 | 2.67 ± 0.52 |
 61–70 (148) | 2.54 ± 0.38 | 2.25 ± 0.52 | 2.59 ± 0.52 | 2.34 ± 0.57 | 2.79 ± 0.40 | 2.66 ± 0.39 | 2.55 ± 0.54 |
 71–79 (64) | 2.45 ± 0.43 | 2.22 ± 0.53 | 2.42 ± 0.60 | 2.26 ± 0.60 | 2.68 ± 0.45 | 2.62 ± 0.40 | 2.47 ± 0.62 |
 F | 4.931** | 2.364 | 10.885*** | 1.183 | 4.164* | 0.285 | 3.315* |
Gender | |||||||
 Male (171) | 2.49 ± 0.41 | 2.19 ± 0.53 | 2.55 ± 0.54 | 2.31 ± 0.61 | 2.72 ± 0.43 | 2.59 ± 0.40 | 2.53 ± 0.58 |
 Female (172) | 2.63 ± 0.37 | 2.38 ± 0.50 | 2.71 ± 0.55 | 2.39 ± 0.55 | 2.88 ± 0.39 | 2.70 ± 0.41 | 2.63 ± 0.51 |
 t | −3.252** | −3.403** | −2.637** | −1.280 | −3.677*** | −2.618** | −1.704 |
Income (in RMB) | |||||||
 Low (168) | 2.48 ± 0.38 | 2.23 ± 0.50 | 2.50 ± 0.58 | 2.27 ± 0.56 | 2.78 ± 0.45 | 2.57 ± 0.40 | 2.47 ± 0.51 |
 Middle (118) | 2.62 ± 0.38 | 2.37 ± 0.52 | 2.74 ± 0.49 | 2.39 ± 0.57 | 2.79 ± 0.38 | 2.73 ± 0.40 | 2.64 ± 0.55 |
 High (57) | 2.66 ± 0.40 | 2.31 ± 0.58 | 2.79 ± 0.50 | 2.50 ± 0.61 | 2.85 ± 0.41 | 2.70 ± 0.42 | 2.78 ± 0.60 |
 F | 7.064** | 2.784 | 93690*** | 4.112* | 0.611 | 5.767** | 7.963*** |
All participants | 2.56 ± 0.39 | 2.29 ± 0.52 | 2.63 ± 0.55 | 2.35 ± 0.58 | 2.80 ± 0.42 | 2.65 ± 0.41 | 2.58 ± 0.55 |