Table 4.

 Risk of any fracture in bariatric surgery patients, by excess body mass index change during follow-up

	Any fracture (no (%))	Crude relative risk (95% CI)*	Adjusted relative risk (95% CI)†
Any fracture after bariatric surgery	38 (1.8)	—	—
Excess loss in body mass index
<0%	1 (0.0)	0.31 (0.04 to 2.49)	0.32 (0.04 to 2.57)
0-50%	9 (0.4)	Reference	Reference
>50%	8 (0.4)	1.58 (0.61 to 4.11)	1.46 (0.55 to 3.85)
Unknown	20 (1.0)	0.56 (0.25 to 1.25)	0.51 (0.23 to 1.15)

*Adjusted for age, sex, and most recent record of body mass index before the index date.

†Adjusted for confounders as shown in table 2.