Table 3.
Multinomial logistic regression: WPS and demographic factors (n=730)
| Characteristics | Never WPS (n=272) (%) | Former WPS (n=266) (%) | AOR ( 95% CI) | p | Current WPS (n=192) (%) | AOR ( 95% CI) | p |
|---|---|---|---|---|---|---|---|
| Agea (years) | 0.462 | 0.718 | |||||
| 15b | 43 (5.9) | 35 (4.8) | 1.00 | - | 18 (2.5) | 1.00 | - |
| 16 | 127 (17.4) | 110 (15.1) | 1.00 (0.58–1.73) | 0.988 | 73 (10) | 1.40 (0.72–2.74) | 0.315 |
| 17 | 77 (10.5) | 96 (13.2) | 1.68 (0.81–3.48) | 0.164 | 80 (11) | 3.61 (1.53–8.52) | 0.003** |
| 18 | 25 (3.4) | 25 (3.4) | 1.84 (0.67–5.02) | 0.236 | 21 (2.9) | 3.99 (1.28–12.40) | 0.017* |
| Majora | |||||||
| Human sciencesb | 64 (8.8) | 72 (9.9) | 1.00 | - | 32 (4.4) | 1.00 | - |
| Natural sciences | 92 (12.6) | 92 (12.6) | 0.69 (0.41–1.17) | 0.172 | 47 (6.4) | 0.68 (0.36–1.30) | 0.248 |
| Mathematics | 53 (7.3) | 48 (6.6) | 0.60(0.33–1.12) | 0.112 | 29 (4) | 0.60(0.29–1.25) | 0.178 |
| Technical | 63(8.6) | 54(7.4) | 0.64(0.37–1.09) | 0.104 | 84 (11.5) | 2.70(1.49–4.90) | 0.001 |
| High school gradea | |||||||
| Tenthb | 134 (18.4) | 115 (15.8) | 1.00 | - | 75 (10.3) | 1.00 | - |
| Eleventh | 87 (11.9) | 104 (14.2) | 1.28(0.73–2.23) | 0.385 | 81 (11.1) | 1.02(0.55–1.90) | 0.945 |
| Twelfth | 51 (7.0) | 47 (6.4) | 0.70(0.32–1.55) | 0.386 | 36 (4.9) | 0.82(0.34–1.99) | 0.673 |
| Father's educationa | |||||||
| Illiteracyb | 12 (1.6) | 16 (2.2) | 1.00 | - | 14 (1.9) | 1.00 | - |
| Under the diploma | 129 (17.7) | 130 (17.8) | 0.62 (0.25–1.50) | 0.290 | 75 (10.3) | 0.50 (0.19–1.29) | 0.154 |
| Diploma | 80 (11.0) | 80 (11) | 0.70 (0.27–1.84) | 0.475 | 65 (8.9) | 0.84 (0.30–2.33) | 0.736 |
| College | 51 (7.0) | 40 (5.5) | 0.58 (0.19–1.78) | 0. 345 | 38 (5.2) | 0.95 (0.29–3.13) | 0.935 |
| Mother's educationa | |||||||
| Illiteracyb | 23 (3.2) | 16 (2.2) | 1.00 | - | 18 (2.5) | 1.00 | - |
| Under the diploma | 131 (17.9) | 145 (19.9) | 1.90 (0.87–4.16) | 0.108 | 86 (11.8) | 0.96 (0.43–2.14) | 0.931 |
| Diploma | 81 (11.1) | 70 (9.6) | 1.54 (0.64–3.68) | 0.329 | 60 (8.2) | 1.12 (0.46–2.73) | 0.797 |
| College | 37 (5.1) | 35 (4.8) | 2.20 (0.75–6.43) | 0.150 | 28 (3.8) | 1.24 (0.40–3.80) | 0.708 |
| Father’s joba | |||||||
| Unemployedb | 6 (0.8) | 8 (1.1) | 1.00 | - | 5 (0.7) | 1.00 | - |
| Worker | 43 (5.9) | 37 (5.1) | 0.63 (0.19–2.07) | 0.448 | 21 (2.9) | 0.67 (0.17–2.63) | 0.566 |
| Self-employed | 125 (17.1) | 153 (21) | 0.87 (0.28–2.77) | 0.822 | 109 (14.9) | 1.48 (0.40–5.50) | 0.555 |
| Employee | 65 (8.9) | 48 (6.6) | 0.54 (0.16–1.85) | 0.326 | 35 (4.8) | 0.74 (0.18–3.02) | 0.676 |
| Retired | 33 (4.5) | 20 (2.7) | 0.46 (0.13–1.64) | 0.235 | 22 (3) | 0.88 (0.21–3.66) | 0.869 |
| Mother’s joba | |||||||
| Housewifeb | 247 (33.8) | 246 (33.7) | 1.00 | - | 178 (24.4) | 1.00 | - |
| Employed | 25 (3. 4) | 20 (2.7) | 0.85 (0.39–1.81) | 0.671 | 14 (1.9) | 0.76 (0.32–1.78) | 0.535 |
| Own rooma | |||||||
| Nob | 76 (10.4) | 67 (9.2) | 1.00 | - | 50 (6.8) | 1.00 | - |
| Yes | 196 (26.8) | 199 (27.3) | 1.17 (0.77–1.76) | 0.454 | 142 (19.5) | 1.19 (0.75–1.90) | 0.445 |
| Living (with)a | |||||||
| Othersb | 6 (0.8) | 14 (1.9) | 1.00 | - | 12 (1.6) | 1.00 | - |
| Both parents | 261 (35.8) | 252 (34.5) | 0.64(0.27–1.49) | 0.304 | 180 (24.7) | 0.46 (0.19–1.12) | 0.090 |
Reference category: Never WPS. WPS: waterpipe smoking, CI: confidence interval, AOR: adjusted odds ratio.
a
Categorical variables
b
Reference group
*
p<0.05
**
p < 0.01
***p < 0.001