Table 3. Prevalence (95% CI) of passive smoking among males and females by selected characteristics (2001–2010).
| Total | Male | Female | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Characteristics | 2001 survey | 2010 survey | P1 | 2001 survey | 2010 survey | P1 | 2001 survey | 2010 survey | P1 |
| (n = 2,277) | (n = 2,102) | (n = 943) | (n = 848) | (n = 1,334) | (n = 1,254) | ||||
| % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | ||||
| Total | 30.5 (28.6–32.4) | 30.0 (28.1–32.0) | 0.717 | 19.6 (17.1–22.2) | 21.2 (18.5–24.0) | 0.399 | 38.2 (35.6–40.8) | 36.0 (33.3–38.6) | 0.233 |
| Age group | |||||||||
| 60- | 33.5 (31.0–35.9) | 33.6 (30.4–36.9) | 0.943 | 23.3 (19.9–26.7) | 18.4 (13.8–22.9) | 0.097 | 40.5 (37.2–43.8) | 41.6 (37.5–45.8) | 0.685 |
| 70- | 25.1 (21.9–28.3) | 28.7 (26.0–31.4) | 0.092 | 13.3 (9.5–17.1) | 23.8 (19.8–27.7) | <0.001 | 33.9 (29.3–38.5) | 32.2 (28.5–35.8) | 0.563 |
| 80- | 27.0 (18.2–35.9) | 22.2 (16.3–28.1) | 0.356 | 13.2 (1.9–24.4) | 18.3 (11.1–25.4) | 0.468 | 35.5 (23.2–47.7) | 27.9 (17.7–38.0) | 0.331 |
| P2 | <0.001 | 0.003 | 0.001 | 0.155 | 0.066 | 0.001 | |||
| Marital status | |||||||||
| Married | 31.1 (29.0–33.2) | 29.7 (27.5–31.8) | 0.343 | 20.0 (17.4–22.7) | 20.5 (17.7–23.3) | 0.815 | 40.4 (37.4–43.4) | 36.9 (33.9–39.9) | 0.103 |
| Widowed or divorced | 27.6 (22.9–32.2) | 32.0 (26.9–37.1) | 0.200 | 14.5 (6.0–23.0) | 29.9 (18.6–41.1) | 0.031 | 30.6 (25.3–35.9) | 32.6 (26.8–38.3) | 0.621 |
| P2 | 0.180 | 0.391 | 0.265 | 0.072 | 0.002 | 0.199 | |||
| Occupation | |||||||||
| White collar | 24.9 (22.4–27.5) | 26.7 (23.4–29.9) | 0.411 | 20.6 (17.4–23.7) | 21.6 (16.8–26.3) | 0.722 | 30.4 (26.4–34.5) | 30.2 (25.8–34.6) | 0.945 |
| Light physical labor | 37.9 (34.9–40.9) | 27.7 (24.5–30.9) | <0.001 | 20.6 (15.5–25.7) | 19.2 (15.2–23.1) | 0.663 | 43.4 (39.9–46.9) | 36.1 (31.3–40.9) | 0.018 |
| Hard physical labor | 21.6 (14.9–28.3) | 36.6 (32.8–40.3) | 0.001 | 9.8 (3.2–16.3) | 25.0 (18.6–31.4) | 0.004 | 36.4 (24.5–48.3) | 41.2 (36.6–45.7) | 0.459 |
| P2 | <0.001 | <0.001 | 0.063 | 0.283 | <0.001 | 0.004 | |||
| Education level (years) | |||||||||
| 0–6 | 35.5 (32.5–38.5) | 37.6 (33.6–41.5) | 0.412 | 16.6 (12.0–21.2) | 32.4 (24.8–40.1) | <0.001 | 42.5 (38.8–46.1) | 39.4 (34.7–44.0) | 0.300 |
| 7–12 | 28.8 (25.6–31.9) | 31.2 (28.1–34.3) | 0.277 | 20.9 (16.6–25.2) | 20.1 (15.5–24.7) | 0.791 | 34.9 (30.5–39.4) | 37.1 (33.1–41.2) | 0.471 |
| 13∼ | 24.0 (20.3–27.7) | 22.0 (18.9–25.1) | 0.414 | 20.6 (16.2–25.0) | 18.0 (14.2–21.7) | 0.368 | 30.1 (23.5–36.8) | 28.1 (22.7–33.5) | 0.641 |
| P2 | <0.001 | <0.001 | 0.355 | 0.001 | 0.002 | 0.008 | |||
P1 is for 2001 vs. 2010;
P2 is for the comparison of characteristics groups.