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Table 5 Polytomous multiple logistic regression analysis of factors associated with current and probable asthma.

From: A population-based study of asthma, quality of life, and occupation among elderly Hispanic and non-Hispanic whites: a cross-sectional investigation

  Current Asthma Probable Asthma
Characteristics Crude OR
(95%CI)
Adjusted ORa
(95%CI)
Crude OR
(95%CI)
Adjusted ORa
(95%CI)
Age
   65–69 1.00 1.00 1.00 1.00
   70–74 0.70
(0.46–1.01)
0.68
(0.45–1.05)
0.76
(0.51–1.13)
0.80
(0.53–1.20)
   75–79 0.88
(0.56–1.38)
0.86
(0.54–1.38)
0.93
(0.61–1.43)
1.05
(0.67–1.64)
   80+ 0.73
(0.47–1.14)
0.70
(0.44–1.11)
0.87
(0.58–1.30)
1.07
(0.71–1.61)
Sex
   Male 1.00 1.00 1.00 1.00
   Female 1.43
(1.00–2.04)
1.64
(1.12–2.38)
1.30
(0.94–1.80)
1.41
(1.00–2.01)
Race/Ethnicity
   Non-Hispanic White 1.00 1.00 1.00 1.00
   Hispanics 0.57
(0.32–0.99)
0.69
(0.39–1.24)
1.23
(0.84–1.81)
1.48
(0.99–2.21)
Education Level
   College Graduate 1.00 1.00 1.00 1.00
   < HS 1.12
(0.65–1.94)
1.86
(1.05–3.30)
1.58
(1.04–2.42)
1.64
(1.02–2.64)
   HS/GED 1.60
(0.99–2.56)
1.68
(1.03–2.73)
0.88
(0.58–1.36)
0.84
(0.54–1.29)
   Some College 1.75
(1.07–2.87)
1.76
(1.06–2.93)
1.20
(0.77–1.88)
1.07
(0.68–1.68)
Household Annual Income b
   ≥ 40 k 1.00 1.00 1.00 1.00
   ≤ 20 k 1.64
(0.99–2.71)
2.43
(1.38–4.28)
1.77
(1.14–2.76)
1.85
(1.17–2.92)
   20–40 k 1.38
(0.82–2.32)
1.42
(0.83–2.43)
0.88
(0.54–1.43)
0.90
(0.55–1.48)
Geographic Location
   Rural 1.00 1.00 1.00 1.00
   Urban 0.97
(0.71–1.34)
1.02
(0.72–1.43)
0.92
(0.69–1.23)
0.84
(0.63–1.13)
Hay Fever
   No 1.00 1.00 1.00 1.00
   Yes 3.74
(2.71–5.16)
3.62
(2.65–4.95)
2.26
(1.66–3.08)
2.46
(1.80–3.37)
Pet Ownership
   Do not own a pet 1.00 1.00 1.00 1.00
   Own a Dog or a Cat 1.01
(0.72–1.40)
0.92
(0.65–1.30)
0.92
(0.67–1.27)
0.84
(0.61–1.17)
   Own some other Pet 0.59
(0.27–1.28)
0.53
(0.23–1.25)
1.16
(0.61–2.19)
0.99
(0.49–1.98)
Smoking Status
   Non-Smoker 1.00 1.00 1.00 1.00
   Current Smoker 0.67
(0.36–1.24)
0.73
(0.39–1.35)
2.30
(1.51–3.50)
2.73
(1.77–4.21)
   Past Smoker 1.51
(1.08–2.10)
1.78
(1.24–2.55)
1.13
(0.82–1.57)
1.36
(0.95–1.96)
Environmental tobacco smoke
   No 1.00 1.00 1.00 1.00
   Yes 0.94
(0.53–1.65)
1.03
(0.58–1.85)
1.37
(0.90–2.08)
1.21
(0.77–1.89)
Self-rated Health
   Excellent/Good 1.00 1.00 1.00 1.00
   Fair/Poor 2.08
(1.51–2.86)
2.71
(1.96–3.76)
3.03
(2.25–4.06)
3.41
(2.48–4.68)
Complaint of Pain
   No Pain 1.00 1.00 1.00 1.00
   Mild Pain 1.65
(1.04–2.62)
1.61
(1.00–2.62)
1.77
(1.18–2.65)
1.83
(1.22–2.75)
   Severe Pain 2.60
(1.84–3.68)
2.35
(1.64–3.36)
4.20
(3.01–5.87)
4.23
(2.99–5.99)
Body Mass Index (BMI)
   Normal Weight (BMI <25) 1.00 1.00 1.00 1.00
   Overweight (BMI 25–29.9) 1.34
(0.92–1.94)
1.34
(0.91–1.95)
1.20
(0.84–1.69)
1.28
(0.89–1.86)
   Obese (BMI ≥ 30) 1.94
(1.29–2.88)
1.98
(1.30–3.01)
2.00
(1.36–2.94)
2.12
(1.41–3.12)
Health Insurance
   No insurance 1.00 1.00 1.00 1.00
   Have insurance 0.67
(0.26–1.71)
0.48
(0.17–1.33)
0.64
(0.28–1.43)
0.64
(0.28–1.47)
Occupation c
   Administrative/Secretarial 1.46
(1.04–2.03)
1.18
(0.84–1.65)
1.08
(0.79–1.49)
1.01
(0.73–1.40)
   Health Related 1.17
(0.63–2.17)
1.01
(0.53–1.93)
0.93
(0.45–1.91)
0.91
(0.44–1.89)
   Teaching 0.43
(0.21–0.87)
0.36
(0.18–0.74)
1.04
(0.63–1.73)
1.14
(0.68–1.88)
   Service Related 0.70
(0.39–1.25)
0.78
(0.42–1.44)
1.54
(1.00–2.37)
1.47
(0.93–2.30)
   Farm Related 1.51
(0.74–3.08)
2.09
(1.00–4.39)
0.74
(0.34–1.59)
0.84
(0.39–1.77)
   Precision Production 0.83
(0.45–1.51)
1.11
(0.56–2.17)
1.13
(0.66–1.93)
1.28
(0.73–2.22)
   Other Occupations 0.91
(0.62–1.33)
0.94
(0.63–1.41)
0.67
(0.45–0.99)
0.65
(0.43–0.99)
  1. The outcome is a three category variable: no asthma (reference), current asthma, probable asthma.
  2. a Adjusted for age, sex, race/ethnicity, smoking status, and history of hay fever.
  3. b Missing information was coded as a separate category.
  4. c Occupations were coded using dummy variable approach and each occupation was regressed separately.