Table 1 Summary of patient characteristics of the created two stapler groups in the retrospective cost analysis
Patient characteristics | ECHELON powered stapler group (N = 296) | ECHELON manual stapler group (N = 92) | P value |
|---|---|---|---|
%/Mean+/−SD | %/Mean+/−SD | ||
Demographics | |||
Age (years) | 57.9+/−8.9 | 58.5+/−9.0 | 0.823 |
Male gender | 53.0% | 63.0% | 0.092 |
BMI (kg/m2) | 23.8+/−3.1 | 23.5+/−2.8 | 0.343 |
BMI < 18.5 | 3.8% | 0.0% | 0.609 |
18.5 < =BMI < 24 | 50.2% | 62.4% | 0.168 |
24 < =BMI < 28 | 36.9% | 27.5% | 0.280 |
28 < =BMI < 30 | 6.4% | 7.6% | 0.730 |
30 < =BMI < 40 | 2.7% | 2.5% | 1.000 |
Place of residence | |||
Provincial capital city | 25.4% | 14.3% | 0.025 |
Prefecture-level city | 59.3% | 60.4% | 0.910 |
County | 7.5% | 19.8% | 0.001 |
Other cities | 7.8% | 5.5% | 0.450 |
Public insurance plan | |||
Urban employee medical insurance | 27.1% | 19.2% | 0.294 |
Urban resident medical insurance | 22.0% | 7.7% | 0.019 |
New rural cooperative medical insurance | 27.1% | 36.5% | 0.180 |
Others | 23.7% | 36.5% | 0.080 |
Marital status | |||
Married | 99.3% | 100.0% | 1.000 |
Single | 0.7% | 0.0% | 1.000 |
Comorbidity | |||
Digestive system diseases | 43.9% | 38.0% | 0.319 |
Urinary system diseases | 23.0% | 16.3% | 0.173 |
Hypertension | 20.3% | 17.4% | 0.543 |
Reproductive system diseases | 17.2% | 13.0% | 0.342 |
Cerebrovascular/cerebrovascular diseases | 15.9% | 17.4% | 0.731 |
Bronchial diseases | 13.5% | 3.3% | 0.006 |
Endocrine system diseases | 11.1% | 7.6% | 0.329 |
Sports system diseases | 9.8% | 3.3% | 0.047 |
Diabetes | 9.1% | 8.7% | 0.901 |
Heart disease | 8.8% | 12.0% | 0.365 |
Emphysema | 7.4% | 7.6% | 0.955 |
Bullae | 5.1% | 5.4% | 0.889 |
Coronary heart disease | 2.7% | 9.8% | 0.004 |
Tumor histology | |||
Squamous cell carcinoma | 14.6% | 14.8% | 1.000 |
Adenocarcinoma | 78.2% | 81.5% | 0.809 |
Other | 7.1% | 3.7% | 0.792 |
Tumor stage | |||
Carcinoma in situ | 1.0% | 0.0% | 0.332 |
I | 56.5% | 47.8% | 0.148 |
II | 11.8% | 17.4% | 0.167 |
III | 29.7% | 33.7% | 0.471 |
IV | 1.0% | 1.1% | 0.951 |
Bone marrow function | |||
Abnormal INR | 3.9% | 3.5% | 1.000 |
Abnormal hemoglobin | 15.9% | 24.2% | 0.085 |
Abnormal erythrocyte counts | 24.4% | 14.3% | 0.043 |
Abnormal leukocyte counts | 8.5% | 9.9% | 0.675 |
Abnormal platelet counts | 7.5% | 12.1% | 0.197 |
Lobectomy site | |||
Upper right | 38.1% | 25.8% | 0.082 |
Right middle | 7.5% | 3.0% | 0.268 |
lower right | 14.3% | 24.2% | 0.062 |
Upper middle right | 0.8% | 0.0% | 1.000 |
Lower middle right | 1.6% | 1.5% | 1.000 |
Left lung | 0.4% | 0.0% | 1.000 |
Upper left | 25.8% | 21.2% | 0.523 |
Bottom left | 11.5% | 24.2% | 0.016 |