Prevalence and pattern of overweight and obesity in three rural communities in southwest Nigeria

Figures & data

Table 1 Characteristics of the subjects (n=777)

	Minimum	Maximum	Mean ± SD
Age, years	21	90	36.3±14.3
Height, m	1.20	1.90	1.6±0.1
Weight, kg	32	128	63.4±12.2
Waist circumference, cm	32	140	81.0±12.2
Hip circumference, cm	38	152	92.4±13.3
BMI, kg/m^2	12.9	50.0	23.5±4.6

Abbreviations: SD, standard deviation; BMI, body mass index.

Table 2 Differences in results between males and females (n=777)

	Male (n=382), mean ± SD	Female (n=395), mean ± SD	P-value
Age, years	35.7±13.4	36.9±15.2	0.269
Height, m	1.66±0.1	1.64±0.1	0.002**
Weight, kg	65.2±11.9	62.1±12.3	0.000**
Waist circumference, cm	82.1±12.3	80.0±12.1	0.020*
Hip circumference, cm	93.4±12.5	91.4±14.0	0.038*
BMI, kg/m^2	23.8±4.6	23.2±4.6	0.287

Notes:

** P<0.001;

* P<0.05.

Abbreviations: SD, standard deviation; BMI, body mass index.

Table 3 Percentage distribution of body mass index by age and sex

Sex and age-groups (years)	n	Distribution of subjects’ body mass index (%)
		<18.49 kg/m^2	18.5–24.9 kg/m^2	25.0–29.9 kg/m^2	30.0–34.9 kg/m^2	35.0–39.9 kg/m^2	>40.0 kg/m^2
Men
21–30	193	8.3	65.3	21.2	4.1	1.0	–
31–40	90	6.7	57.8	23.3	8.9	–	3.3
41–50	43	11.6	51.2	23.3	11.6	2.3	–
51–60	37	5.4	35.1	29.7	21.6	8.1	–
61+	19	21.1	63.2	10.5	5.3	–	–
All men	382	8.6	58.9	22.3	7.9	1.6	0.8
Women
21–30	190	7.9	68.9	18.9	2.6	0.5	1.1
31–40	95	6.3	64.2	18.9	5.3	2.1	3.2
41–50	46	15.2	54.3	21.7	4.3	4.3	–
51–60	24	12.5	54.2	20.8	12.5	–	–
61+	40	12.5	67.5	15.0	5.0	–	–
All women	395	9.1	65.1	19.0	4.3	1.3	1.3
Total	777	8.9	61.9	20.8	6.0	1.4	1.0

Table 4 Values of WC and HC across age-groups (n=777)

Age-group	n	WC (cm)	HC (cm)
		Mean ± SD	Mean ± SD
21–30 years	383	77.7±9.2a	90.4±10.8a
31–40 years	185	82.9±14.6b	94.5±16.3b,c
41–50 years	89	84.4±12.1b,c	94.2±13.0a–c
51–60 years	61	87.1±15.4c	96.3±16.3c
61+ years	59	85.3±12.1b,c	91.6±12.8a,b
Total	777	81.0±12.2	92.4±13.2
P-value		0.000	0.000

Notes:

a–c Using Duncan’s post hoc test, group a is different from b, and b from c.

Abbreviations: SD, standard deviation; WC, waist circumference; HC, hip circumference.

Table 5 Prevalence of overweight and obesity of all participants by sex

Prevalence	Male (n=125)	Female (n=102)	Total population (n=227)
Overweight (%)	68.8	73.5	70.9
Class I obesity (%)	24.0	16.7	20.7
Class II obesity (%)	4.8	4.9	4.8
Class III obesity (%)	2.4	4.9	3.5