The Implications of Tobacco Smoking on Acute Postoperative Pain: A Prospective Observational Study

Table 3

Surgical duration hour in different surgical areas between three male groups.

	Nonsmoker	Smokers	Past-smokers	value
Upper abdomen	5.1 ± 3.4	5.8 ± 3.0	5.8 ± 5.0	0.8
Lower abdomen	4.9 ± 2.1	5.2 ± 2.5	5.0 ± 2.1	0.69
Extremities	3.3 ± 1.9	4.0 ± 3.4	4.1 ± 3.8	0.66
Spine	8.3 ± 3.2	6.7 ± 2.6	6.6 ± 2.2	0.23
Others	13.7 ± 1.8	11.5 ± 3.3	9.3 ± 4.1	0.11

Data were presented as mean ± SD or number (%).