Exercise-Induced Bronchoconstriction and Exercise-Induced Respiratory Symptoms in Nurses

Table 1

Demographics of the study subjects.

Variable	Nurses	Office workers
	(𝑛=48)	(𝑛=48)
Age (years)	37.8±7.4	39.1±9.2
BMI (kg/m^2)	25.4±3.9	26.7±4.3
Duration of employment (years)	14.7±5.7	15.4±7.8
Asthma diagnosed by physician	3 (6.3%)	2 (4.2%)
Family history of asthma	4 (8.3%)	4 (8.3%)
Family history of allergies	6 (12.5%)	8 (16.6%)
Daily smokers	14 (29.2%)	15 (31.2%)
Smoking experience (years)	17.7±5.8	19.4±7.9
Cigarettes per day	14.4±6.9	16.8±8.3
Pack years smoked	12.5±3.1	13.4±3.8
Daily smokers with less than 12 pack years smoked	6 (12.5%)	7 (14.6%)
Ex-smokers	5 (10.4%)	4 (8.3%)
Passive smokers	8 (16.6%)	10 (20.8%)

Numerical data are expressed as mean value with standard deviation and frequencies as number and percentage of study subjects with certain variable.
BMI: body mass index; kg: kilogram; m: meter.