Table 1. Comparison of Demographics and Comorbidities Between Patients With and Without Appendectomy
Appendectomy Appendectomy
Yes (N=246562) No (N=246562)
n(%) n(%) p-value
Age, years 0.99
20-34 94814(38.5) 94814(38.5)
35-49 74812(30.3) 74812(30.3)
>50 76936(31.2) 76936(31.2)
Mean (SD) 43.3(16.7) 43.1(16.9) <0.001
Gender 0.99
Female 119806(48.6) 119806(48.6)
Male 126756(51.4) 126756(51.4)
Comorbidity
CAD 8657(3.51) 6011(2.44) <0.001
Hypertension 26628(10.8) 13128(5.32) <0.001
Diabetes 14566(5.91) 7602(3.08) <0.001
Hyperlipidemia 6080(2.47) 3815(1.55) <0.001
CVA 6764(2.74) 5462(2.22) <0.001
Heart failure 2837(1.15) 1845(0.75) <0.001
COPD 4237(1.72) 2758(1.12) <0.001
CKD 2056(0.83) 834(0.34) <0.001
Alcohol-related diseases
2250(0.91)
1282(0.52)
<0.001
Cirrhosis 8729(3.54) 4529(1.84) <0.001
Biliary stone 6167(2.50) 3070(1.25) <0.001
Categorical data were examined using a chi-squared test; continuous data were examined using a t test CAD, coronary artery disease; CKD, chronic kidney disease; COPD, chronic obstructive pulmonary disease; CVA, cerebrovascular disease; SD, standard deviation Categorical data were examined using a chi-squared test; continuous data were examined using a t test CAD, coronary artery disease; CKD, chronic kidney disease; COPD, chronic obstructive pulmonary disease; CVA, cerebrovascular disease; SD, standard deviation Categorical data were examined using a chi-squared test; continuous data were examined using a t test CAD, coronary artery disease; CKD, chronic kidney disease; COPD, chronic obstructive pulmonary disease; CVA, cerebrovascular disease; SD, standard deviation Categorical data were examined using a chi-squared test; continuous data were examined using a t test CAD, coronary artery disease; CKD, chronic kidney disease; COPD, chronic obstructive pulmonary disease; CVA, cerebrovascular disease; SD, standard deviation