Table 2.
Comparison of 5 waist circumference sites and gender differences (mean (SD, 95% CI of mean difference)).
| Comparison of 5 waist circumference sites | Comparison on difference of 5 WC sites between genders | |||
|---|---|---|---|---|
| Females (n = 128) | Males (n = 127) | p value | 95% CI of mean difference | |
| WC5 versus WC1 (cm) | 5.19 (2.55, 4.55–5.83)∗ | 3.57 (3.01, 2.80–4.33)∗ | <0.001 | 0.94–2.31 |
| WC5 versus WC2 (cm) | 5.66 (2.56, 5.01–6.30)∗ | 4.07 (2.81, 3.36–4.79)∗ | <0.001 | 0.92–2.25 |
| WC5 versus WC3 (cm) | 3.81 (1.91, 3.33–4.29)∗ | 3.03 (2.39, 2.42–3.63)∗ | 0.004 | 0.25–1.32 |
| WC5 versus WC4 (cm) | 3.88 (2.13, 3.34–4.41)∗ | 2.41 (2.21, 1.85–2.97)∗ | <0.001 | 0.93–2.00 |
| WC4 versus WC1 (cm) | 1.32 (1.45, 0.95–1.68)∗ | 1.15 (2.30, 0.57–1.74)∗ | 0.497 | −0.31–0.64 |
| WC4 versus WC2 (cm) | 1.78 (1.39, 1.43–2.13)∗ | 1.66 (1.94, 1.17–2.15)∗ | 0.568 | −0.30–0.54 |
| WC4 versus WC3 (cm) | −0.07 (1.35, −0.41–0.27) | 0.61 (1.41, 0.26–0.97)∗ | <0.001 | −1.02–−0.34 |
| WC3 versus WC1 (cm) | 1.38 (1.44, 1.02–1.75)∗ | 0.54 (1.83, 0.07–1.00)∗ | <0.001 | 0.44–1.25 |
| WC3 versus WC2 (cm) | 1.85 (1.39, 1.50–2.20)∗ | 1.05 (1.48, 0.67–1.42)∗ | <0.001 | 0.45–1.15 |
| WC1 versus WC2 (cm) | 0.47 (0.72, 0.29–0.65)∗ | 0.51 (0.88, 0.29–0.73)∗ | 0.665 | −0.24–0.15 |
WC1: immediately below the lowest rib; WC2: at the narrowest part of the torso, above the umbilicus, and below the xiphoid process; WC3: midpoint between the lowest rib and the iliac crest; WC4: 1 cm above the umbilicus; WC5: immediately above the superior border of the iliac crest.
∗p < 0.001, significant difference between WC measurement sites within each gender.