Table 2.

Cox proportional hazards model for the effect of BMI (time-varying) and overweight risk at 9 months of age on islet autoimmunity up to 5.5 years and up to 2.5 years of age

	Risk for islet autoimmunity during follow-up (up to 5.5 years of age)				Risk for early islet autoimmunity (up to 2.5 years of age)
	N	HR	95% CI	Adjusted p valuea	N	HR	95% CI	Adjusted p value*
Time-varying BMI (kg/m2)	1023	1.16	1.01, 1.32	0.031	1023	1.14	0.98, 1.31	0.088
Overweight risk (BMI SDS>1) at 9 months	1021	1.68	1.00, 2.82	0.048	1021	1.73	0.99, 3.02	0.056

^aAdjusted for first-degree family history of type 1 diabetes, country of residence, sex and whether BMI was assessed during the COVID-19 pandemic