Comparisons of Waist Circumference Measurements at Five Different Anatomical Sites in Chinese Children
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 ()
Males ()
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. , significant difference between WC measurement sites within each gender.
