Performance of newly developed body mass index cut-off for diagnosing obesity among Ethiopian adults

Table 3 Agreement of obesity prevalence measured by Ethiopian and WHO BMI cut-offs with obesity based on ADP measured body fat percentage among Ethiopian adult females

Variables	Prevalence of obesity
Variables	n	(a) Obesity based on ADP measured body fat > 35% for females (%)	(b) Obesity based on BMI ≥ 30 kg/m² (%)	Difference in obesity (a–b) (%)	Kappa	(c) Obesity based on Ethiopian BMI cut-off for females > 24.5 kg/m² (%)	Difference in obesity (a–c) (%)	Kappa
Age group
20–30	124	39.5	8.1	31.40	0.237	27.4	12.10	0.697
31–40	164	76.8	23.8	53.00	0.172	66.5	10.30	0.630
≥ 41	109	78.0	23.9	54.10	0.163	65.1	12.90	0.647
Total	397	65.5	18.9	46.60	0.219	53.9	11.60	0.701
Ethnicity							9.50
Oromo	106	64.2	20.8	43.40	0.255	54.7	12.20	0.729
Amhara	140	77.9	27.9	50.00	0.198	65.7	13.70	0.636
Gurage	22	77.3	9.1	68.20	0.057	63.6	15.80	0.680
Kefa	38	60.5	10.5	50.00	0.143	44.7	15.00	0.691
Others	20	45.0	15.0	30.00	0.355	30.0	7.50	0.688
Dawro	40	52.5	5.0	47.50	0.091	45.0	12.90	0.652
Yem	31	41.9	9.7	32.20	0.258	29.0	11.6	0.723
Total	397	65.5	18.9	46.60	0.219	53.9		0.701

Kappa agreement (0 = no/poor), (0.01–0.20 = slight), (0.21–0.40 = fair), (0.41–0.60 = moderate), (0.61–0.80 = substantial), and (0.81–1.00 = almost perfect) (William et al., 2011). BMI cut-off for obesity ≥ 30 kg/m² is the WHO cut-off [20]
ADP air displacement plethysmography

ISSN: 1880-6805