Table 1 Demographic characteristics of study sample by gender, age and diagnosis
From: Asthma in an Urban Population in Portugal: A prevalence study
Total sample N = 576 Mean age | Asthma cases N = 59 Mean age | Non-asthma N = 517 Mean age | |
|---|---|---|---|
33.2 years (s.d. 28.1) | 27.0 years (s.d. 23.4) | 33.9 years (s.d. 28.5) | |
Males | 32.2 years (s.d. 27.1) N = 279 (48.4%) | 22.0 years (s.d. 17.8) N = 29 | 33.4 years (s.d. 27.7) N = 250 |
Females | 34.2 years (s.d. 28.9) N = 297 (51.6%) | 31.8 years (s.d. 27.2) N = 30 | 34.5 years (s.d.29.2) N = 267 |