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. Author manuscript; available in PMC: 2014 Nov 19.
Published in final edited form as: Ann Thorac Surg. 2014 Jun 24;98(2):459–465. doi: 10.1016/j.athoracsur.2014.04.122

Table 2.

Individual Resident Experience With Specific Procedure Types: Period II Versus Period V

Procedure Type Period II
AY93–94 to AY97–98
Period V
AY08–09 to AY11–12
p Value


Min Max Mean ± SD Min Max Mean ± SD
Open thoracotomy 4.9 5.9 5.3 ± .4 4.1 4.8 4.3 ± .4 0.0144
Thoracoscopic exploration 1.1 2.7 2.0 ± .7 4.4 4.8 4.7 ± .17 0.0001
Open wedge resection 3.3 6.9 4.3 ± 1.5 1.2 4.5 2.5 ± 1.8 0.1551
Thoracoscopic wedge resection 0.2 1.9 1.4 ± .7 2.8 4.8 4.1 ± 1.1 0.0050
Open lobectomy/segmentectomy 4.9 7.7 6.8 ± 1.1 1.2 5.6 4.2 ± 2.1 0.0435
Thoracoscopic lobectomy/segmentectomy 0.4 0.7 0.6 ± .1 1.8 4.8 2.9 ± 1.3 0.0047

AY = academic year; Max = maximum number of cases; Min = minimum number of cases.