Table 2.
Powered staplers, n = 659 | Manual staplers, n = 3100 | Std. diff.a | |
---|---|---|---|
Primary diagnosis of cancer, n (%) | 601 (91.2) | 2934 (94.6) | 0.135 |
Comorbidities, n (%) | |||
Cancer (metastatic) | 96 (14.6) | 418 (13.5) | 0.031 |
Cerebrovascular disease | 16 (2.4) | 82 (2.7) | 0.014 |
COPDb | 324 (49.2) | 1368 (44.1) | 0.101 |
Coagulopathy | 13 (2.0) | 53 (1.7) | 0.020 |
Congestive heart failure | 33 (5.0) | 138 (4.5) | 0.026 |
Connective tissue/rheumatic disease | 23 (3.5) | 108 (3.5) | 0.000 |
Depression | 76 (11.5) | 389 (12.6) | 0.031 |
Diabetes (w/complications) | 8 (1.2) | 49 (1.6) | 0.031 |
Diabetes (w/o complications) | 110 (16.7) | 547 (17.7) | 0.025 |
Hypertension (complicated) | 44 (6.7) | 189 (6.1) | 0.024 |
Hypertension (uncomplicated) | 392 (59.5) | 1723 (55.6) | 0.079 |
Hypothyroidism | 80 (12.1) | 395 (12.7) | 0.018 |
Liver disease (mild) | 15 (2.3) | 60 (1.9) | 0.024 |
Myocardial infarction | 40 (6.1) | 189 (6.1) | 0.001 |
Neurological disorders | 16 (2.4) | 64 (2.1) | 0.025 |
Obesityc | 94 (14.3) | 324 (10.5) | 0.116 |
Peripheral vascular disease | 56 (8.5) | 275 (8.9) | 0.013 |
Renal disease | 45 (6.8) | 208 (6.7) | 0.005 |
Valvular disease | 27 (4.1) | 133 (4.3) | 0.010 |
Weight loss | 12 (1.8) | 64 (2.1) | 0.018 |
CCI, n (%) | |||
0–1 | 70 (10.6) | 247 (8.0) | 0.091 |
2 | 153 (23.2) | 872 (28.1) | 0.113 |
3 | 189 (28.7) | 908 (29.3) | 0.013 |
4 | 89 (13.5) | 365 (11.8) | 0.052 |
5+ | 158 (24.0) | 708 (22.8) | 0.027 |
Day of procedured, mean (SD) | 1.0 (0.2) | 1.1 (0.6) | 0.134 |
Concomitant wedge resection, n (%) | 57 (8.6) | 265 (8.5) | 0.004 |
Concomitant segmentectomy, n (%) | 4 (0.6) | 13 (0.4) | 0.026 |
Robot-assisted procedure, n (%) | 205 (31.1) | 284 (9.2) | 0.569 |
CCI Charlson comorbidity index, COPD chronic obstructive pulmonary disease, SD standard deviation, Std. diff. standardized difference
aStandardized difference > 0.10 indicates imbalance across the cohorts
bComprising chronic obstructive pulmonary disease and allied disorders, according to the ICD-9-CM/ICD-10-CM taxonomies
cBased on ICD-9-CM/ICD-10-CM coding generally corresponding to body mass index ≥ 30 kg/m2
dDay on which VATS lobectomy procedure was performed; value of 1 indicates day of admission