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. 2013 Mar 18;11(1):7. doi: 10.1186/1617-9625-11-7

Table 3.

Factors associated with the development of respiratory illness as assessed through a logistic regression analysis

Factors
Cases
Controls
Crude OR
Adjusted OR
P- value*
  n /% n /% (95% CI) (95% CI)  
Household monthly income (US $)
<150
34/ 7.4
12/ 2.6
7.62
3.99
<0.05
(3.41-17.30)
(1.75- 9.10)
151 - 333
272/ 59.0
174/ 37.9
4.21
2.72
<0.05
(2.76-6.42)
(1.70-4.36)
334 - 666
113/ 24.5
160/ 34.9
1.90
1.43
>0.05
(1.21-2.98)
(0.89-2.28)
≥667
42/ 9.1
113/ 24.6
1
1
 
Father’s education level
Grade 6 or less
189/ 41.7
102/ 22.7
4.00
2.07
<0.05
(2.66-6.02)
(1.24-3.44)
Secondary or vocational school
208/ 45.9
219/48.7
2.19
1.36
>0.05
(1.49-3.21)
(0.88-2.12)
Bachelor’s degree and above
56/ 12.4
129/28.6
1
1
 
Mother’s education level
Grade 6 or less
192/ 41.8
120/ 26.2
3.28
1.04
>0.05
(2.20-4.89)
(0.62-1.75)
Secondary or vocational school
207/ 45.1
215/ 46.8
1.99
1.05
>0.05
(1.36-2.91)
(0.68-1.63)
Bachelor’s degree and above
60/ 13.1
124/ 27.0
1
1
 
Child’s exposure in utero to SHS during pregnancy
Yes
147/ 31.8
95/ 20.6
1.80
1.16
>0.05
(1.32-2.46)
(0.83-1.62)
No
315/ 68.2
367/ 79.4
1
1
 
Child’s exposure to smoke while being held by a caregiver
Yes
121/26.2
31/6.7
4.88
3.82
<0.05
(3.22-7.38)
(2.47-5.9)
No
341/73.8
431/93.3
1
1
 
Child’s exposure to SHS outside their home
Yes
39/ 8.4
12/ 2.6
3.46
2.99
<0.05
(1.79-6.69)
(1.45-6.15)
No 423/ 91.6 450/ 97.4 1 1  

*P-value for adjusted OR, adjusted for household income and parental education.