Table 5. Distribution of Emergency Department Admissions of Patients With and Without Bleeding According to Season, and Weekly Warfarin Dose.

	Bleeding		P
	Present (n = 39)	Absent (n = 102)
	n (%)	n (%)
Presenting season
Spring	10 (25.6)	29 (28.4)	0.469
Summer	11 (28.2)	26 (25.5)
Autumn	5 (12.8)	23 (22.5)
Winter	13 (33.3)	24 (23.5)
Warfarin dose, mg/week
< 35	31 (79.5)	90 (88.2)	0.306#
35 - 50	7 (17.9)	12 (11.8)
> 50	1 (2.6)	0 (0.0)

^#Only one patient was taking warfarin > 50 mg/week and was not included in the analyses.