Health care costs and lost productivity costs related to excess weight in Belgium

BMC Public Health

Table 3 Unadjusted health care costs in function of body mass index classes, Belgian population ≥ 18 years, BHIS 2013 – IMA2013-2017 (N = 7,633)

BMI categories	RR⁽¹⁾	Standard error	P-value	95% CI	Mean incremental cost⁽²⁾
Underweight	1.25	0.17	0.111	0.91–1.65	627
Normal weight (reference)	1	—	—	—	—
Overweight	1.43	0.10	< 0.001	1.25–1.64	1,046
Obese	1.77	0.13	< 0.001	1.54–2.03	1,870
Constant	2,426	119	< 0.001	2,203–2,672

⁽¹⁾RR = expected value of the coefficient with normal weight as reference category
⁽²⁾Based on the method of recycled predictions

ISSN: 1471-2458