Table 5.

Laboratory variables between the pre- and postoperative care in the total sample and according to the drain opening time group.

Variable	Sample	pré-op Mean ± SD	pós-op Mean ± SD	p valora
Total	Hematocrit	41.3 ± 3.9	32.5 ± 4.2	0.0001
	Hemoglobin	13.7 ± 1.5	10.8 ± 1.3	0.0001
	Red Blood Cells	4.71 ± 0.55	3.73 ± 0.53	0.0001
of 12 hours	Hematocrit	41.2 ± 4.2	32.35 ± 3.80	0.0001
	Hemoglobin	13.8 ± 1.4	10.9 ± 1.4	0.0001
	Red Blood Cells	4.67 ± 0.51	3.70 ± 0.55	0.0001
of 6 hours	Hematocrit	41.4 ± 3.8	32.7 ± 4.6	0.0001
	Hemoglobin	13.5 ± 1.5	10.7 ± 1.3	0.0001
	Red Blood Cells	4.75 ± 0.59	3.76 ± 0.52	0.0001
	Hemoglobina	13.5 ± 1.5	10.7 ± 1.3	0,0001
	Hemácia	4.75 ± 0.59	3.76 ± 0.52	0,0001

SD: Standard Deviation; Student's paired t -test.

Source: Hospital Santa Teresa.