Propensity score-matched (PSM) analysis was adopted to control confounding bias. Multivariable analysis was performed to determine the prognostic factors. Results: 436 patients were included. After PSM, 43 patients were included in both the LCH and RCH groups. The results showed that compared to ...
propensity-score matched analysis 倾向性评分匹配(propensity score matching,PSM)是一种统计学方法,旨在减少研究中的偏差和混杂变量影响,以便对观察组和对照组进行更合理的比较。这种方法最早由Paul Rosenbaum和Donald Rubin在1983年提出,此后获得了快速发展并且在各个方面不断改进。 倾向性评分匹配的基本原理是用一个...
Propensity score (PS) matching was implemented to ensure intergroup comparability in terms of patient-related variables, tumor characteristics, and quality of thoracic esophagectomy. 2. Materials and methods 2.1. Patients The study followed the tenets of the Helsinki Declaration and received ethical ...
Propensity score matching analysis Considered the sex, histological grade, T stage, N stage and AJCC TNM stage were imbalance between SII ≤ 307 and SII > 307 ESCC patients (Table 1), we applied a 1:2 PSM ratio to minimize these differences. In the PSM analysis, we selected 253...
Participants in SiVET for whom there was no match in the non-SiVET were excluded from the propensity score matched analysis. We used Chi-square tests to compare the baseline characteristics of participants in SiVET to those in observational cohorts before and after propensity score matching ...
Super elderly patients with intertrochanteric fractures do not predict worse outcomes and higher mortality than elderly patients: a propensity score matched analysis. Aging. 2020;12(13):13583–93. Article PubMed PubMed Central Google Scholar Guo J, Wang T, Zheng X, Long Y, Wang X, Zhang Q...
RESULTS. After propensity score matching, 238 pairs of patients were successfully matched (C-statistic 0.762). The mean number of distal anastomoses in the CABG group was 4.7 and that of implanted stents in the second-generation DES group was 2.8. The 30-day mortality was similar between the ...
for surgeons still in the learning phase of major laparoscopic liver resection (LLR) have been frequently observed. We aimed to compare perioperative and long-term outcomes of laparoscopic and open surgery based on the surgeons’ learning curve for LLR after propensity score-matched (PSM) analysis....
Matching the patients use the nearest neighbor technique, with a predefined caliper width equal to 0.05 of the standard deviation of the logit of the propensity score, after propensity score matching. A total of 58 patients were included for the propensity score-matched analysis in each cohort. ...
After a one-to-two propensity score-matched analysis was performed, outcomes of the late operation group were not inferior to those of the early operation group. Conclusion Late cholecystectomy was acceptable for treating grades 1 and 2 acute cholecystitis....