Table 3. Multivariate associations (hazard ratios and 95% confidence intervals derived from joint models) for overall mortality for BMI in different multivariate joint models stratified on three levels of initial BMI.

	Hazard Ratio [95% Confidence Interval] Probability of death for each 1 kg/m2 decrease in the BMI per year
	10.5–23 (n = 6 456)	23–30 (n = 8 605)	≥30 (n = 4 463)
Model 1: adjusted for age and gender	1.20 [1.18–1.23]	1.06 [1.04–1.09]	0.99 [0.98–1.00]
Model 2: adjusted for age, gender and comorbidities	1.19 [1.16–1.22]	1.09 [1.06–1.11]	1.00 [0.98–1.01]
Model 3: adjusted on age, gender and eGFR (CKD–EPI)	1.19 [1.16–1.22]	1.06 [1.04–1.09]	0.99 [0.98–1.00]
Model 4: adjusted on age, gender and initial treatment	1.20 [1.18–1.23]	1.06 [1.04–1.09]	0.99 [0.98–1.00]
Model 5: adjusted on age, gender and smocking status	1.20 [1.18–1.23]	1.06 [1.04–1.09]	0.99 [0.98–1.00]
Model 6: adjusted on age, gender, comorbidities and albuminemia	1.18 [1.15–1.22]	1.08 [1.04–1.10]	1.01 [1.00–1.03]

Abbreviations: eGFR, estimated glomerular filtration rate, CKD–EPI, Chronic Kidney Disease Epidemiology Collaboration.