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Table 1 Characteristics of a cohort of pulp mill workers and prevalence of respiratory work disability during employment time in pulp and paper mills

From: Risk factors for respiratory work disability in a cohort of pulp mill workers exposed to irritant gases

Subject characteristics Total Respiratory work disability
  N % N
Pulp mill workers 3226 2.4 76
Men 2733 2.7 75
Women 493 0.2 1
Allergic status 583 3.8 22
Never-smokers 1678 2.3 38
Ex-smokers 1129 2.6 29
Current smokers 419 2.1 9
ETS exposure at work in pulp industry 1654 3.2 53
Work in digester department 389 5.9 23
Work in bleachery department 200 4.5 9
Reported gassings 1283 5.1 66
Asthma (including childhood asthma) 235 14.9 35
Childhood asthma 63 4.8 3
Chronic bronchitis 205 11.2 23
Chronic rhinitis 524 6.1 32
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