Table 4

 Population attributable fraction for recent wheeze and asthma diagnosis of past tuberculosis, occupational exposure and current smoking (N = 13 826)

p (%)Recent wheezeAsthma ever
PORPAF (%)PORPAF (%)
p, population prevalence of exposure; POR, prevalence odds ratio (fully adjusted, table 3); PAF, population attributable fraction.
Tuberculosis (ever)2.43.45.42.22.7
Occupational exposure17.51.812.21.913.6
Light smoking (1–14/day)17.11.57.8
Heavy smoking (15+/day)4.91.83.7
Obesity20.21.23.8