Opinion Review
Copyright ©The Author(s) 2020.
World J Gastroenterol. Jun 7, 2020; 26(21): 2682-2690
Published online Jun 7, 2020. doi: 10.3748/wjg.v26.i21.2682
Table 2 Recommendations for the economic evaluations of costs associated with postoperative complications of surgical procedures
No.Data to be described in the economic study
1Type of study
2Center: Particular characteristics
3Period of inclusion of cases
4Population and subgroups analyzed; clarify why they were chosen
5Surgical interventions considered
6Methods for managing the heterogeneity of the population and the surgical techniques used; clarify the possible influence of this heterogeneity on the results
7If possible, describe the characteristics of the severity or complexity of patients (ASA, Charlson, Frailty ...)
8Patients excluded and why
9Patients and procedures lost for analysis. Economic data lost. Clarify whether these can compromise the validity of the results
10Definition of complication
11How complications are classified (better, Clavien-Dindo classification and comprehensive complication index)
12Sources used to obtain data on the complications (specific forms, medical and nursing evolution comments)
13Perspective from which the economic evaluation is carried out: the patient, the specific institution (e.g., the hospital), the target group for specific services e.g., rehabilitation), the Public Health Service, the Public Sector in general or from all perspectives (social perspective)
14Health-related costs (direct and indirect), non-health-related costs (table 1). Sources used to obtain data. Specify the costs obtained en bloc (for example, general costs) those obtained in microcosts (radiology, pharmacy, ...) In the estimation of operating room costs, specify whether the cost of the consumable material used in each patient is individualized
15Describe the postoperative follow-up time in which complications and costs will be evaluated for each perspective and procedure. From the hospital perspective, consider 90 d minimum
16Methods for converting costs into a common monetary base and the exchange rate. If it includes more than one calendar year, specify corrections made for inflation
17Biases and limitations of the study, and measures used to reduce them
18Conflict of interests of researchers. Linking researchers to the surgical service and hospital
19Source of study financing