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Table 1 The baseline characteristics and spirometry tests variables of the study subjects

From: The effect of obesity on spirometry tests among healthy non-smoking adults

  Male (n = 178) Females (n = 116)   Total (n = 294)
  Mean Std. Dev Mean Std. Dev P value Mean Std. Dev
Age (years) 32.19 10.164 32.15 9.639 .974 32.17 9.943
Height (cm) 171.87 6.261 159.16 5.975 < .001 166.85 8.739
Weight (kg) 84.21 18.212 71.50 18.325 < .001 79.19 19.258
BMI (kg/m2) 28.503 5.9454 28.253 7.1559 .755 28.404 6.4395
FEV1 (L) 3.6363 .44796 2.6692 .37764 < .001 3.2548 .63356
FEV1% 92.51 9.938 93.48 9.554 .406 92.89 9.784
FVC (L) 4.4958 .56783 3.2129 .47231 < .001 3.9897 .82270
FVC % 95.83 10.109 97.99 10.522 .078 96.68 10.311
PEF(L/min) 560.47 76.552 393.54 51.952 < .001 494.61 106.201
PEF % 100.76 13.228 98.80 12.942 .211 99.99 13.129
FEV1/FVC Ratio 80.98 3.646 82.72 2.954 < .001 81.67 3.489
FEF 25-75 (L) 3.4693 .71140 2.6894 .48920 < .001 3.1616 .73854
FEF 25-75% 75.59 15.894 70.95 11.262 .004 73.76 14.406