Table 3.
Fixed Effectb | 13-Year-Old Students | 16-Year-Old Students | ||
---|---|---|---|---|
|
|
|||
Girls (n = 395) | Boys (n = 368) | Girls (n = 405) | Boys (n = 357) | |
School-level policy | ||||
Staff can smoke outdoors | ||||
No | 1 [Reference] | NA | NA | NA |
Yes | 4.8 (1.1–21.1) | NA | NA | NA |
Staff can smoke indoors | ||||
No | NA | NA | NA | 1 [Reference] |
Yes | NA | NA | NA | 1.6 (0.8–3.1) |
Covariates | ||||
School status | ||||
Public | 1 [Reference] | 1 [Reference] | 1 [Reference] | 1 [Reference] |
Private | 1.9 (0.6–5.9) | 2.1 (0.2–19.0) | 1.1 (0.6–2.2) | 0.7 (0.3–1.7) |
School location | ||||
Rural | 1 [Reference] | 1 [Reference] | 1 [Reference] | 1 [Reference] |
Urban | 1.2 (0.4–3.4) | 3.4 (0.4–29.0) | 1.0 (0.6–1.6) | 1.5 (0.8–3.0) |
Student-level covariates | ||||
Parent(s) smoke daily | ||||
No | 1 [Reference] | 1 [Reference] | 1 [Reference] | 1 [Reference] |
Yes | 2.8 (1.3–5.8) | 17.6 (6.6–46.8) | 1.9 (1.3–3.0) | 2.1 (1.2–3.7) |
Sibling(s) smoke daily | ||||
No | 1 [Reference] | 1 [Reference] | 1 [Reference] | 1 [Reference] |
Yes | 2.4 (1.2–4.7) | 7.6 (4.2–14.0) | 2.8 (1.7–4.6) | 2.4 (1.4–4.2) |
Abbreviation: NA, data not applicable.
Data are given as odds ratio (95% confidence interval) for daily smoking.
Random effect data: μ (SE) and df values were 0.95 (0.91) and 46 for 13-year-old girls, 2.3 (5.3) and 46 for 13-year-old boys, 0.59 (0.35) and 54 for 16-year-old girls, and 0.59 (0.35) and 53 for 16-year-old boys, respectively.