Table 2.

Distribution of insulin dose by case status

	All patients	Case subjects	Control subjects	P*
n	1,990	995	995
Insulin dose (units/kg)
0	478 (24.0)	20.0	28.0	<0.001
<0.2	595 (29.9)	22.2	37.6
0.2–0.4	285 (14.4)	15.0	13.7
0.4–0.6	263 (13.2)	16.5	9.9
0.6–0.8	161 (8.1)	11.4	4.8
≥0.8	208 (10.5)	15.0	5.9

Data are n (%) or percentages.

*P value by χ² test.