The Cardiothoracic Surgeon

Table 4 Numeric rating scale (NRS) of the studied groups

From: Video assisted thoracoscopic surgery vs thoracotomy in management of post traumatic retained hemothorax: a randomized study

	Group A (n = 30)	Group B (n = 30)	P value
Post-extubation	1 (1—2)	2 (1—3)	0.007*
6 h after extubation	3 (2—4)	3.5 (2—5)	0.041*
Next day morning	2 (2—4)	3 (2.25—5)	0.070
After chest tube removal	2.5 (1—4)	3 (2.25—4)	0.239
Before discharge	4 (3—4.75)	5 (3—6)	0.066

Data are presented as median (IRQ)
NRS Numerical rating scale, *significant as P value ≤ 0.05

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