Table 2.

Chi Squared approximation for difference in volume of collection based on size on D1

Amount of fluid in ml	Drain group		Non drain group
	<4 cm	>4 cm	< 4 cm	>4 cm
Mean D1	2.30 ml	5.935 ml	2.452 ml	2.011
Total number of patients	37	14	34	17

P = 0.313 (ns)