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Table 1 Basic characteristics of the study sample

From: The influence of active and passive smoking on the cardiorespiratory fitness of adults

Characteristics Non-smokers Passive smokers Active smokers p
  (n = 15) (n = 14) (n = 14)  
Male gender, n (%) 6 (40) 4 (28.5) 4 (28.5) 0.97
Age (years old) 30,4 ± 8.2 33.1 ± 11.8 37.2 ± 7.7 0.16
BMI (kg/m2) 23.6 ± 4.6 24.3 ± 4.2 27.2 ± 3.9 0.06
WC (cm) 74.1 ± 12.1 77.2 ± 10.7 84.1 ± 8.5 0.04
%F 20.9 ± 8.4 23.1 ± 6.6 24.1 ± 6.2 0.51
SAP resting (mmHg) 117.9 ± 10.4 120.3 ± 12.6 120.9 ± 9.3 0.73
DAP resting (mmHg) 76.1 ± 9.4 74.6 ± 7.4 74.6 ± 9.1 0.88
FVC (% pred) 95.8 ± 21.1 105 ± 15.8 104.2 ± 13.2 0.28
FEV1 (% pred) 89.4 ± 19.5* 102.8 ± 15.4 103 ± 10.8* 0.03
FEV1/FVC (% pred) 92.6 ± 9.2 97.4 ± 6.5 97.1 ± 5.4 0.15
  1. BMI, body mass index; DAP, diastolic arterial pressure; FEV1, forced expiratory volume in the first second; FEV1/FVC, ratio between FEV1 and FVC; FVC, forced vital capacity; %F, percentage of body fat; SAP, systolic arterial pressure; WC, waist circumference. Values are expressed as the mean ± SD. Significant difference between non-smokers and active smokers (p = 0.04). *Significant difference between non-smokers and active smokers (p = 0.03). Significance was accepted at p < 0.05.