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Table 3 ORs and 95% CIs for atopy in relation to BMI stratified by sex and smoking status in all subjects

From: Effect modification by gender and smoking status on the association between obesity and atopic sensitization in Chinese adults: a hospital-based case–control study

  

Never smokers

Current smokers

Effect

 

Case

Control

cOR (95% CI)a

aOR (95% CI)b

Case

Control

cOR (95% CI)a

aOR (95% CI)b

Modification

 

N (%)

N (%)

  

N (%)

N (%)

  

P valuec

Men

        

0.0349

Normal

102 (48.11)

118 (50.86)

1.00 (ref)

1.00 (ref)

76 (51.01)

106 (69.74)

1.00 (ref)

1.00 (ref)

 

Overweight

82 (38.68)

102 (43.97)

0.93 (0.63-1.38)

1.02 (0.67-1.55)

47 (31.54)

30 (19.74)

2.19 (1.27-3.77)

2.15 (1.23-3.77)

 

Obesity

28 (13.21)

12 (5.17)

2.70 (1.31-5.58)

3.15 (1.49-6.68)

26 (17.45)

16 (10.53)

2.27 (1.14-4.51)

2.22 (1.10-4.48)

 

P trend

  

p = 0.0245

   

p = 0.0042

 

Women

       

0.0260

Normal

549 (74.29)

587 (72.56)

1.00 (ref)

1.00 (ref)

33 (66.00)

42 (80.77)

1.00 (ref)

1.00 (ref)

 

Overweight

137 (18.54)

205 (25.34)

0.72 (0.56-0.91)

0.70 (0.54-0.91)

12 (24.00)

7 (13.46)

2.18 (0.77-6.16)

2.66 (0.83-8.51)

 

Obesity

53 (7.17)

17 (2.10)

3.33 (1.91-5.83)

3.51 (1.98-6.24)

5 (10.00)

3 (5.77)

2.12 (0.47-9.53)

2.22 (0.46-10.68)

 

P trend

   

p = 0.2025

   

p = 0.1047

 
  1. acOR, crude odds ratio; CI, confidence interval.
  2. baOR, adjusted odds ratio; CI, confidence interval.
  3. bAdjusted for age, educational levels, family allergic diseases history and alcohol consumption.
  4. cP value for effect modification by smoking status on the association of BMI category and atopic sensitization in men and women, respectively.
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BMC Public Health

ISSN: 1471-2458

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