Table 3. Factors associated with persistent smoking after experiencing of cardiovascular events.
| All (N = 486) | IHD (N = 134) | Stroke (N = 342) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| N | OR (95% CI) |
P-value | N | OR (95% CI) |
P-value | N | OR (95% CI) |
P-value | |
| Age | |||||||||
| 15–39 (Ref) | 96 | - | - | 30 | - | - | 65 | - | - |
| 40–49 | 148 | 0.95 (0.53–1.70) | 0.86 | 47 | 0.57 (0.18–1.81) | 0.34 | 99 | 1.00 (0.49–2.04) | 1.00 |
| 50–59 | 136 | 0.97 (0.49–1.89) | 0.92 | 33 | 0.51 (0.13–2.06) | 0.35 | 98 | 1.04 (0.46–2.35) | 0.92 |
| 60–69 | 93 | 0.84 (0.38–1.87) | 0.67 | 21 | 0.18 (0.03–1.03) | 0.05 | 70 | 1.08 (0.42–2.79) | 0.87 |
| 70+ | 13 | 2.15 (0.53–8.75) | 0.28 | 3 | - | - | 10 | 1.77 (0.37–8.49) | 0.47 |
| Sex | |||||||||
| Male (Ref) | 463 | - | - | 128 | - | - | 325 | - | - |
| Female | 23 | 1.75 (0.64–4.76) | 0.28 | 6 | 5.45 (0.53–56.44) | 0.16 | 17 | 1.00 (0.49–2.04) | 1.00 |
| Income | |||||||||
| mid 60% (Ref) | 173 | - | - | 51 | - | - | 119 | - | - |
| lower20% | 83 | 1.31 (0.77–2.23) | 0.32 | 17 | 1.93 (0.58–6.47) | 0.28 | 64 | 1.32 (0.70–2.50) | 0.39 |
| upper20% | 230 | 0.76 (0.48–1.21) | 0.24 | 66 | 1.70 (0.68–4.22) | 0.26 | 159 | 0.59 (0.33–1.05) | 0.07 |
| Residential area | |||||||||
| Metropolitan (Ref) | 202 | - | - | 58 | - | - | 139 | - | - |
| City | 206 | 1.09 (0.73–1.64) | 0.68 | 61 | 0.95 (0.41–2.19) | 0.90 | 141 | 1.17 (0.71–1.93) | 0.53 |
| Rural | 78 | 0.93 (0.53–1.64) | 0.80 | 15 | 1.19 (0.33–4.33) | 0.79 | 62 | 0.88 (0.46–1.69) | 0.70 |
| BMI | 486 | 1.01 (0.95–1.08) | 0.67 | 134 | 1.04 (0.91–1.18) | 0.61 | 342 | 1.00 (0.92–1.08) | 0.99 |
| Pre-diagnosis smoking amount (cigarettes/d) | |||||||||
| 0–9 (Ref) | 85 | - | - | 26 | - | - | 58 | - | - |
| 10–19 | 217 | 2.05 (1.15–3.63) | 0.015* | 56 | 1.00 (0.31–3.24) | 1.00 | 156 | 2.50 (1.23–5.10) | 0.012* |
| 20–39 | 175 | 2.46 (1.33–4.56) | 0.004* | 50 | 1.36 (0.39–4.75) | 0.63 | 121 | 2.86 (1.34–6.13) | 0.007* |
| 40+ | 9 | 2.00 (0.47–8.55) | 0.35 | 2 | 0.82 (0.03–21.43) | 0.91 | 7 | 2.48 (0.46–13.30) | 0.29 |
| Pre-diagnosis smoking duration (years) | |||||||||
| 0–4 (Ref) | 18 | - | - | 0 | - | - | 18 | - | - |
| 5–9 | 19 | 17.14 (1.69–173.36) | 0.02* | 4 | 0.12 (0.01–1.72) | 0.12 | 15 | 14.48 (1.32–158.30) | 0.028* |
| 10–19 | 74 | 0.72 (0.78–57.75) | 0.08 | 22 | 0.33 (0.03–3.99) | 0.39 | 51 | 8.29 (0.93–74.22) | 0.06 |
| 20–29 | 124 | 7.22 (0.86–60.45) | 0.07 | 45 | 1.25 (0.09–16.81) | 0.87 | 78 | 7.91 (0.92–68.31) | 0.06 |
| 30+ | 251 | 12.18 (1.45–102.27) | 0.02* | 63 | - | - | 180 | 9.66 (1.12–83.10) | 0.039* |
| Diagnosis of depression No (Ref) |
452 | - | - | 126 | - | - | 316 | - | - |
| Yes | 34 | 1.07 (0.51–2.23) | 0.86 | 8 | 0.70 (0.13–3.78) | 0.68 | 26 | 1.18 (0.50–2.81) | 0.70 |
* Separate analysis for patients diagnosed with both IHD and stroke was not displayed due to insufficient numbers.