Table 3.

Chi Squared approximation for difference in volume of collection based on size on D7

Amount of fluid	Drain group		Non drain group
	<4 cm	>4 cm	< 4 cm	>4 cm
Mean	0.956 ml	1.956 ml	1.388 ml	1.244 ml
Total number of patients	37	14	34	17

P = 0.0712 (ns)