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Table 1 Patients characteristics before and after propensity score matching

From: Subxiphoid vs transthoracic approach thoracoscopic surgery for spontaneous pneumothorax: a propensity score-matched analysis

Characteristics Unmatched group Matched group
Transthoracic Subxiphoid p-value Transthoracic Subxiphoid p-value
Age (years) 26.43 ± 11.57 21.56 ± 4.38 0.001 20.47 ± 5.80 21.56 ± 4.38 0.398
Gender    0.015    1.0
 Male 73 31   31 31  
 Female 22 1   1 1  
Height (kg) 58.39 ± 8.36 61.09 ± 9.25 0.126 59.42 ± 8.29 61.09 ± 9.25 0.449
Weight (cm) 172.68 ± 7.49 177.13 ± 5.56 0.003 177.09 ± 4.29 177.13 ± 5.56 0.980
Body mass index (BMI) 19.61 ± 2.79 19.41 ± 2.32 0.718 18.86 ± 2.56 19.41 ± 2.32 0.377
Side involved    0.238    0.895
 Left 48 12   13 12  
 Right 36 13   14 13  
 Bilateral 11 7   5 7