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Table 4 The correlation between endometriosis and asthma in age, BMI, pregnancy history, and race subgroups

From: Association of endometriosis with asthma: a study of the NHANES database in 1999–2006

Subgroups

Sample size

outcome/total

Adjusted model

OR (95% CI)

P

Age < 30

N = 295/1869

  

 No

N = 282/1817

Ref

 

 Yes

N = 13/52

0.91 (0.39–2.13)

0.820

Age = 30–39

N = 193/1560

  

 No

N = 170/1440

Ref

 

 Yes

N = 23/120

1.64 (0.90–3.02)

0.106

Age = 40–49

N = 202/1463

  

 No

N = 161/1320

Ref

 

 Yes

N = 41/143

2.26 (1.21–4.23)

0.012

Age ≥ 50

N = 92/664

  

 No

N = 81/599

Ref

 

 Yes

N = 11/65

1.00 (0.47–2.13)

0.992

Mexican American

N = 90/1314

  

 No

N = 86/1284

Ref

 

 Yes

N = 4/30

1.28 (0.33–4.98)

0.716

Non-Hispanic Black

N = 46/271

  

 No

N = 43/264

Ref

 

 Yes

N = 3/7

4.00 (0.35–45.53)

0.226

Non-Hispanic White

N = 428/2567

  

 No

N = 365/2306

Ref

 

 Yes

N = 63/261

1.37 (0.96–1.97)

0.085

Other Hispanic

N = 184/1151

  

 No

N = 167/1084

Ref

 

 Yes

N = 17/67

2.18 (0.96–4.94)

0.060

Other Race

N = 34/253

  

 No

N = 33/238

Ref

 

 Yes

N = 1/15

0.39 (0.03–5.66)

0.468

BMI < 18.5

N = 19/129

  

 No

N = 18/121

Ref

 

 Yes

N = 1/8

0.44 (0.00-Inf)

0.695

BMI = 18.5–24.9

N = 219/1795

  

 No

N = 197/1669

Ref

 

 Yes

N = 22/126

1.24 (0.66–2.35)

0.493

BMI = 25-29.9

N = 192/1580

  

 No

N = 165/1474

Ref

 

 Yes

N = 27/106

2.87 (1.52–5.44)

0.002

BMI ≥ 30

N = 352/2052

  

 No

N = 314/1912

Ref

 

 Yes

N = 38/140

1.28 (0.82–1.99)

0.265

Pregnancy history

N = 129/861

  

 No

N = 115/803

Ref

 

 Yes

N = 14/58

1.58 (0.90–2.77)

0.109

Non-pregnancy history

N = 653/4695

  

 No

N = 579/4373

Ref

 

 Yes

N = 74/322

1.44 (1.01–2.06)

0.044

  1. BMI: body mass index, OR: odds ratio, CI: confidence interval
  2. Age subgroups: adjusted for race, education level, marital status, PIR, BMI, waist circumference, cigarettes smoking, estrogen and progesterone hormones use, uterine fibroids, at least one ovary removed, and birth control pills use;
  3. Race subgroups: age, education level, marital status, PIR, BMI, waist circumference, cigarettes smoking, estrogen and progesterone hormones use, uterine fibroids, at least one ovary removed, and birth control pills use;
  4. BMI subgroups: age, race, education level, marital status, PIR, waist circumference, cigarettes smoking, estrogen and progesterone hormones use, uterine fibroids, at least one ovary removed, and birth control pills use;
  5. Pregnancy history subgroups: age, race, education level, marital status, PIR, BMI, waist circumference, cigarettes smoking, estrogen and progesterone hormones use, uterine fibroids, at least one ovary removed, and birth control pills use