Table 2 Description of the population : age, gender, medical history and smoking status
From: Pontiac fever: an operational definition for epidemiological studies
| Â | Sample size | Mean age (standard-error) | Previous pathologies | Previous immunity conditions | Previous respiratory conditions | Current smokers | Past smokers |
|---|---|---|---|---|---|---|---|
Male | 158 (28.2%) | 77 (± 9) | 117 (74.0%) | 37 (23.4%) | 20 (12.6%) | 20 (12.7%) | 27 (17.1%) |
Female | 402 (71.9%) | 82 (± 9) | 290 (72.1%) | 94 (24,3%) | 54 (13.4%) | 22 (5.5%) | 41 (10.2%) |
Total | 560 (100%) | 81 (± 9) | 407 (72.7%) | 131 (23.4%) | 74 (13.2%) | 42 (7.5%) | 68 (12.1%) |