Socio-demographic Determinants of Overweight and Obesity Among Mothers of Primary School Children Living in a Rural Health and Demographic Surveillance System Site, South Africa

Table 2: Comparison of medians for nutritional indicators by age group.

Variables	All Median (IQR)	18-35 years Median (IQR)	36-45 years Median (IQR)	>45years Median (IQR)	P-value
Weight (kg)	72 (61.6; 85.7)	70.7 (61; 81.1)	71 (61.4; 88.6)	79.3 (72.3; 89)	0.011*
Height (m)	1.6 (1.6; 1.6)	1.6 (1.6; 1.7)	1.6 (1.6; 1.6)	1.6 (1.6; 1.6)	0.568
BMI (kg/m²)	28.7 (24.2; 33.4)	28.2 (24.5; 32.6)	28.7 (24; 34.2)	31.6 (28.2; 34.6)	0.001*
HC (cm)	107 (100; 117)	106 (99; 116.5)	107.7 (100; 117)	112 (102; 122)	0.057
WC (cm)	88.2 (97.6; 99)	87 (78; 96)	88 (80; 101)	95.5 (88; 104)	0.001*
WHR	0.8 (0.8; 0.9)	0.82 (0.76; 0.85)	0.83 (0.78; 0.87)	0.85 (0.79; 0.91)	0.001*
WHtR	0.55 (0.50; 0.62)	0.54 (0.49; 0.61)	0.55 (0.50; 0.62)	0.61 (0.53; 0.65)	0.0004*

Kruskal Wallis test was used. *Indicates significant differences between the medians. BMI – body mass index, HC – hip circumference, WC – waist circumference, WHR – waist hip ratio, WHtR – waist-to-height ratio.