Table 2 Independent sample test comparing age, BMI and spirometric variables between non-obese and obese subjects
From: The effect of obesity on spirometry tests among healthy non-smoking adults
| Â | Group 1 (non-obese) | Group 2 (obese) | Â | Â | Â | ||
|---|---|---|---|---|---|---|---|
| Â | Mean | SD | Mean | SD | Mean difference | 95% CI | P value |
Height (cm) | 166.75 | 8.55 | 166.95 | 8.93 | -0.19 | (-2.20, 1.81) | 0.848 |
Weight (kg) | 62.40 | 8.36 | 94.67 | 12.16 | -32.26 | (-34.67, -29.84) | < .00001 |
BMI (kg/m 2 ) | 22.37 | 1.82 | 33.95 | 3.47 | -11.58 | (-12.22, 10.93) | < .00001 |
FEV1 (L) | 3.27 | 0.56 | 3.24 | 0.69 | 0.02 | (-0.11, 0.17) | 0.686 |
FEV1% | 91.95 | 9.41 | 93.76 | 10.06 | -1.81 | (-4.05, 0.42) | 0.110 |
FVC (L) | 4.00 | 0.75 | 3.97 | 0.88 | 0.03 | (-0.15, 0.22) | 0.733 |
FVC % | 95.83 | 10.10 | 97.46 | 10.47 | -1.63 | (-4.00, 0.73) | 0.175 |
PEF(L/min) | 508.42 | 113.65 | 479.62 | 95.62 | -28.80 | (-53.02, -4.59) | 0.020 |
PEF % | 103.09 | 13.13 | 96.62 | 12.30 | -6.46 | (-9.39, -3.53) | < .00001 |
FEV1/FVC Ratio | 81.94 | 3.86 | 81.41 | 3.09 | 0.53 | (-0.26, 1.33) | 0.197 |
FEF 25-75 (L) | 3.14 | 0.63 | 3.17 | 0.82 | -0.03 | (-0.20, 0.13) | 0.693 |
FEF 25-75% | 72.12 | 13.01 | 75.27 | 15.47 | -3.14 | (-6.44, 0.14) | 0.061 |