Induction of labour versus expectant management for prelabour rupture of the membranes at term: an economic evaluation

 

Table 3: Unadjusted bivariate and adjusted multivariate models for a positive result of the CAGE questionnaire among current drinkers
Characteristic No. of respondents in weighted sample Weighted % Unadjusted odds ratio Adjusted odds ratio
Model 1 Model 2
Sex
Male 3416 7.0 1.72† 1.72† 0.87
Female 2478 4.2 1.00 1.00 1.00
Age, yr
15–17 285 7.9 1.34 0.67 0.64
18–19 210 7.3 1.23 0.73 0.56
20–24 654 8.9 1.53 1.07 0.83
25–34 1420 5.7 0.95 0.88 0.77
35–44 1334 6.0 1.00 1.00 1.00
45–54 901 5.8 0.96 0.96 1.16
55–64 542 4.0 0.65 0.62 0.87
>= 65 549 1.9 0.30† 0.32* 0.62
Region
Atlantic 484 7.6 2.34† 2.09† 1.71
Quebec 1641 7.1 2.17† 2.90† 2.61†
Ontario 2016 3.4 1.00 1.00 1.00
Prairies 984 7.6 2.34† 2.17† 1.93†
British Columbia 769 5.8 1.75* 1.64 1.39
Language
English 3986 5.7 1.00 1.00 1.00
French 1475 6.6 1.17 0.62 0.64
Other/not stated 432 3.5 0.60 0.70 1.17
Marital status
Married/common-law 3482 4.0 1.00 1.00 1.00
Single/never married 1795 8.6 2.26† 2.09† 1.56*
Widowed 196 2.1 0.51 0.94 0.91
Divorced/separated 421 10.1 2.70† 2.60† 2.07†
Education level
Less than secondary 1244 8.1 1.96† 2.01† 1.43
Secondary 1449 5.4 1.27 1.29 0.95
Some postsecondary 1901 5.8 1.37 1.22 0.99
University degree 1108 4.3 1.00 1.00 1.00
Not stated 191 2.4 0.55 1.00 0.50
Income adequacy
Low 799 8.4 1.52* 1.24 1.12
Middle 2193 5.7 1.00 1.00 1.00
High 932 6.0 1.06 1.16 1.08
Not stated 1970 4.7 0.82 0.91 0.95
Drinking pattern
Light, infrequent 1974 1.5 1.00 NA‡ 1.00
Light, frequent 3011 5.3 3.68†   2.78†
Heavy, infrequent 346 7.1 5.02†   2.20*
Heavy, frequent 563 22.7 19.28†   6.36†
No. of occasions with >= 5 drinks at 1 sitting
>= 12 765 19.8 18.74† NA 8.06†
3–11 1179 7.3 5.98†   4.13†
1–2 1142 4.7 3.74†   3.10†
0 2537 1.3 1.00   1.00
Not stated 270 6.0 4.85†   3.28†
*p < 0.01.
p < 0.001.
‡NA = not applicable.

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| CMAJ December 1, 1997 (vol 157, no 11) / JAMC le 1er décembre 1997 (vol 157, no 11) |

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