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Table 1 Patient demographics, primary analyses

From: Impact of Powered and Tissue-Specific Endoscopic Stapling Technology on Clinical and Economic Outcomes of Video-Assisted Thoracic Surgery Lobectomy Procedures: A Retrospective, Observational Study

  Powered staplers, n = 659 Manual staplers, n = 3100 Std. diff.a
Age, mean (SD) 66.1 (10.7) 66.7 (10.2) 0.059
Age group, n (%)
 18–44 23 (3.5) 65 (2.1) 0.085
 45–54 54 (8.2) 309 (10.0) 0.062
 55–64 171 (25.9) 794 (25.6) 0.008
 ≥ 65 411 (62.4) 1932 (62.3) 0.001
Sex, n (%)
 Female 353 (53.6) 1699 (54.8) 0.025
 Male 306 (46.4) 1401 (45.2)  
Marital status, n (%)
 Married 397 (60.2) 1689 (54.5) 0.117
 Single 251 (38.1) 1193 (38.5) 0.008
 Other 11 (1.7) 218 (7.0) 0.265
Race, n (%)
 White 571 (86.6) 2487 (80.2) 0.173
 Black 51 (7.7) 230 (7.4) 0.012
 Other 37 (5.6) 383 (12.4) 0.237
Hispanic, n (%) 93 (14.1) 114 (3.7) 0.373
Payer type, n (%)
 Medicare 405 (61.5) 1921 (62.0) 0.011
 Commercial 195 (29.6) 883 (28.5) 0.024
 Medicaid 34 (5.2) 165 (5.3) 0.007
 Other 25 (3.8) 131 (4.2) 0.022
Index hospitalization year
 2012 14 (2.1) 823 (26.5) 0.743
 2013 86 (13.1) 739 (23.8) 0.281
 2014 145 (22.0) 614 (19.8) 0.054
 2015 245 (37.2) 591 (19.1) 0.411
 2016 169 (25.6) 333 (10.7) 0.393
  1. SD standard deviation, Std. diff. standardized difference
  2. aStandardized difference > 0.10 indicates imbalance across the cohorts