Table 2.

 Hospital admissions or emergency department (ED) visits for hypoglycemia during periods of warfarin use. Values are numbers (percentages) unless stated otherwise

Person quarters	Full sample (n=4 355 418)	Person quarters with warfarin use (n=416 479)	Person quarters without warfarin use (n=3 938 939)	P value*
With hospital admission for hypoglycemia	442 (0.010)	77 (0.018)	365 (0.009)	<0.01
With ED visit for hypoglycemia but not admitted	1755 (0.040)	217 (0.052)	1538 (0.039)	<0.01
With hospital admission or ED visit for hypoglycemia	2197 (0.050)	294 (0.071)	1903 (0.048)	<0.01

*For comparison between person quarters with and without any warfarin use.