Table 3.
Outcome of multivariate logistic regression analysis (mean value as cutting point) for factors that influence the adoption of risk reduction behavior regarding PM2.5 (N = 292).
| Characteristic | Lower-Level | Higher-Level | p | OR | 95% CI | |
|---|---|---|---|---|---|---|
| No. (%) (N) | No. (%) (N) | Lower | Upper | |||
| Gender | ||||||
| Male (Reference) | 53.3 (82) | 46.8 (72) | ||||
| Female | 27.5 (38) | 72.5 (100) | 0.002 ** | 3.22 | 1.53 | 6.78 |
| Age group | ||||||
| ≤50 years old (Reference) | 50.0 (38) | 50.0 (38) | ||||
| 50–60 years old | 23.7 (18) | 76.3 (58) | 0.030 ** | 2.53 | 1.10 | 5.85 |
| 60–70 years old | 35.1 (26) | 64.9 (48) | 0.165 | 1.78 | 0.79 | 4.02 |
| ≥71 years old | 57.6 (38) | 42.4 (28) | 0.408 | 0.70 | 0.30 | 1.62 |
| Occupation | ||||||
| Government staff (Reference) | 36.0 (36) | 64.0 (64) | ||||
| Company employee | 36.5 (46) | 63.5 (80) | 0.476 | 1.35 | 0.59 | 3.06 |
| Self-Employed | 57.6 (38) | 42.5 (28) | 0.201 | 1.65 | 0.77 | 3.54 |
| Educational level | ||||||
| Junior high school (Reference) or below | 48.7 (38) | 51.3 (40) | 0.217 | 0.55 | 0.21 | 1.43 |
| High school | 40.0 (36) | 60.0 (54) | 0.809 | 0.90 | 0.38 | 2.13 |
| Junior college | 37.9 (22) | 62.1 (36) | 0.888 | 0.94 | 0.37 | 2.38 |
| College or above | 36.4 (24) | 63.6 (42) | 0.217 | 0.55 | 0.21 | 1.43 |
| Smoking status | ||||||
| None-smoker (Reference) | 31.1 (58) | 68.9 (128) | ||||
| Ex-smoker | 50.0 (20) | 50.0 (20) | 0.288 | 2.36 | 0.49 | 11.43 |
| ≤10 cigarettes smoked per day | 57.9 (22) | 42.1 (16) | 0.170 | 3.51 | 0.59 | 21.05 |
| >10 cigarettes smoked per day | 71.4 (20) | 28.6 (8) | 0.719 | 1.38 | 0.24 | 7.93 |
| Individual income per month | ||||||
| ≤RMB 3000 (Reference) | 35.5 (27) | 64.5 (50) | 0.945 | 0.94 | 0.16 | 5.52 |
| RMB 3001–5000 | 42.6 (49) | 57.4 (66) | 0.453 | 0.55 | 0.12 | 2.62 |
| RMB 5001–8000 | 49.3 (36) | 50.7 (37) | 0.473 | 0.57 | 0.12 | 2.66 |
| ≥RMB 8001 | 29.6 (8) | 70.4 (19) | 0.945 | 0.94 | 0.16 | 5.52 |
| Whether or not have chronic illness | ||||||
| No (Reference) | 43.4 (66) | 56.6 (86) | ||||
| Yes | 38.6 (54) | 61.4 (86) | 0.922 | 1.04 | 0.43 | 2.52 |
| Whether or not household with chronic illness patients | ||||||
| No (Reference) | 41.5 (61) | 58.8 (86) | ||||
| Yes | 40.7 (59) | 59.3 (86) | 0.758 | 1.11 | 0.59 | 2.09 |
| Whether or not household with children | ||||||
| No (Reference) | 43.6 (108) | 56.5 (140) | ||||
| Yes | 27.3 (12) | 72.7 (32) | 0.035 ** | 2.59 | 1.07 | 6.26 |
| Self-reported the extent of knowledge about PM2.5 | ||||||
| Very low (Reference) | 56.3 (36) | 43.8 (28) | ||||
| Low | 46.7 (70) | 53.3 (80) | 0.116 | 1.80 | 0.87 | 3.76 |
| High | 20.0 (12) | 80.0 (48) | 0.000 ** | 7.55 | 2.64 | 21.60 |
| Very high | 11.1 (2) | 88.9 (16) | 0.005 ** | 12.70 | 2.14 | 75.17 |
Note: ** Difference is significant at the p < 0.05 level (2-tailed).