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Table 5 Unadjusted costs of absenteeism in function of BMI-classes, Belgian working population ≥ 18 years, BHIS 2013 (N = 3,857)

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

BMI-classes

Cost ratio(1)

Std. error

P-value

95% CI

Underweight

1.19

0.48

0.671

(0.54–2.63)

Normal weight (reference)

1

—

—

—

Overweight

1.11

0.16

0.472

(0.83—1.48)

Obese

1.87

0.48

0.015

(1.13—3.09)

Constant

2,359

228

 < 0.001

(1,952 – 2,851)

  1. expected value of the coefficient with normal weight as reference category; CI Confidence intervals