Table 3.

Association of BMI Change and the Risk of Recurrent Gout Attacks among Gout Patients

BMI Change Category*	N of Records	Recurrent Gout Attacks N (%)	Crude OR (95% CI)	Adjusted OR† (95% CI)
Loss > 5%	221	14 (6.3%)	0.71 (0.39, 1.30)	0.61 (0.32, 1.16)
Loss 3.6 to 5 %	89	8 (9.0%)	1.00 (0.47, 2.15)	0.94 (0.43, 2.06)
No change (-3.5 to 3.5%)	838	75 (9.0%)	1.00	1.00
Gain 3.6% to 5%	111	13 (11.7%)	1.35 (0.73, 2.53)	1.43 (0.75, 2.72)
Gain > 5%	158	18 (11.4%)	1.40 (0.79, 2.49)	1.60 (0.89, 2.89)
P for trend			<0.01	<0.01

^*Relative BMI change =(Post BMI – Pre BMI)/Pre BMI

^†Adjusted for BMI, age, education, alcohol and coffee intake, presence of hypertension, and diuretic use measured during the 12 months before the incident gout attack.