Basic Study
Copyright ©The Author(s) 2016.
World J Respirol. Mar 28, 2016; 6(1): 24-32
Published online Mar 28, 2016. doi: 10.5320/wjr.v6.i1.24
Table 2 Frequency (%) of respiratory symptoms in the exposed and unexposed subjects1n (%)
SymptomsExposedUnexposed
(n = 51)(n = 51)
Cough19 (37)b2 (4%)
Phlegm19 (37)b4 (8%)
Productive cough4 (8)0
Wheezing during a cold21 (41)b5 (10%)
Wheezing apart from colds14 (27)b3 (6%)
Wheezing accompanied by Shortness of breath7 (14)d0
Shortness of breath8 (16)d1 (2%)
Byssinosis grade 1/29 (17.6)b0
Byssinosis grade I3 (6)0
Byssinosis grade II2 (4)0