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Table 2 Frequency of respiratory tract diseases in flight attendants exposed to secondhand smoke

From: Association between respiratory tract diseases and secondhand smoke exposure among never smoking flight attendants: a cross-sectional survey

   Quartiles of Total Hours Spent in Smoky Cabin
Respiratory Disease Overall, N = 1007
n (%)
Q1, N = 252
n (%)
Q2, N = 257
n (%)
Q3, N = 246
n (%)
Q4, N = 252
n (%)
Any respiratory disease 702 (69.7) 167 (66.3) 173 (67.3) 168 (68.0) 194 (77.3)
Sinusitis 437 (43.4) 103 (40.9) 105 (40.9) 116 (47.0) 113 (45.0)
Allergies 406 (40.3) 100 (39.7) 98 (38.1) 106 (42.9) 102 (40.6)
Bronchitis 310 (30.8) 61 (24.2) 83 (32.3) 82 (33.2) 84 (33.5)
Middle Ear Infections 234 (23.2) 43 (17.1) 48 (18.7) 70 (28.3) 73 (29.1)
Asthma 137 (13.6) 25 (9.9) 32 (12.5) 40 (16.2) 40 (15.9)
Hay Fever 135 (13.4) 29 (11.5) 40 (15.6) 37 (15.0) 29 (11.6)
Pneumonia 126 (12.5) 24 (9.5) 26 (10.1) 34 (13.8) 42 (16.7)
COPD 20 (2.0) 4 (1.6) 4 (1.6) 5 (2.0) 7 (2.8)