Skip to main content

Advertisement

Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Table 4 Risk factors for asthma and respiratory symptoms by multiple logistic regression analysis.

From: West Sweden Asthma Study: Prevalence trends over the last 18 years argues no recent increase in asthma

Independant variables Dependant variables OR (95% CI)
Variables* Categories Physician diagnosed asthma Attacks of shortness of breath Any wheeze Recurrent wheeze Sputum production
Family history of asthma Yes 2.61 (2.31-2.94) 2.44 (2.17-2.74) 2.01 (1.82-2.21) 2.35 (2.05-2.68) 1.67 (1.50-1.86)
Rhinitis Yes 5.41 (4.81-6.08) 4.96 (4.44-5.53) 2.94 (2.69-3.21) 2.72 (2.39-3.09) 2.02 (1.83-2.22)
Smoking Ex-smokers 1.34 (1.16-1.55) 1.29 (1.13-1.48) 1.39 (1.24-1.55) 1.35 (1.14-1.59) 1.23 (1.09-1.39)
  Smokers 1.14 (0.98-1.33) 1.81 (1.58-2.07) 3.37 (3.04-3.72) 3.88 (3.36-4.47) 2.62 (2.36-2.92)
Age 31-45 0.84 (0.72-0.98) 1.07 (0.92-1.24) 1.01 (0.90-1.14) 1.28 (1.05-1.55) 0.81 (0.71-0.92)
  46-60 0.74 (0.63-0.87) 1.06 (0.91-1.25) 1.06 (0.94-1.20) 1.71 (1.42-2.07) 0.81 (0.71-0.92)
  61-75 0.90 (0.75-1.07) 1.32 (1.12-1.56) 1.20 (1.05-1.37) 2.21 (1.82-2.69) 1.10 (0.96-1.26)
Region Gothenburg 0.95 (0.85-1.06) 1.04 (0.93-1.16) 1.06 (0.97-1.15) 1.12 (0.99-1.27) 1.17 (1.06-1.28)
Sex Women 1.17 (1.05-1.32) 1.46 (1.30-1.63) 1.10 (1.01-1.20) 0.91 (0.80-1.03) 0.98 (0.89-1.07)
  1. Risks in odds ratios (OR) with 95% confidence intervals (95% CI).
  2. * As compared to no family history of asthma, no rhinitis, non-smokers, 16-30 years of age, living in West Gothia and men respectively.