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Impact of colic pain as a significant factor for predicting the stone free rate of one-session shock wave lithotripsy for treating ureter stones: a Bayesian logistic regression model analysis

 Chung DY  ;  Cho KS  ;  Lee DH  ;  Han JH  ;  Kang DH  ;  Jung HD  ;  Kown JK  ;  Ham WS  ;  Choi YD  ;  Lee JY 
 PLOS ONE, Vol.10(4) : e0123800, 2015 
Journal Title
Issue Date
Bayes Theorem ; Cohort Studies ; Colic/complications* ; Female ; Humans ; Lithotripsy* ; Logistic Models ; Male ; Middle Aged ; Pain/complications* ; Prognosis ; Propensity Score ; ROC Curve ; Retrospective Studies ; Ureteral Calculi/complications ; Ureteral Calculi/diagnosis* ; Ureteral Calculi/therapy*
PURPOSE: This study was conducted to evaluate colic pain as a prognostic pretreatment factor that can influence ureter stone clearance and to estimate the probability of stone-free status in shock wave lithotripsy (SWL) patients with a ureter stone. MATERIALS AND METHODS: We retrospectively reviewed the medical records of 1,418 patients who underwent their first SWL between 2005 and 2013. Among these patients, 551 had a ureter stone measuring 4-20 mm and were thus eligible for our analyses. The colic pain as the chief complaint was defined as either subjective flank pain during history taking and physical examination. Propensity-scores for established for colic pain was calculated for each patient using multivariate logistic regression based upon the following covariates: age, maximal stone length (MSL), and mean stone density (MSD). Each factor was evaluated as predictor for stone-free status by Bayesian and non-Bayesian logistic regression model. RESULTS: After propensity-score matching, 217 patients were extracted in each group from the total patient cohort. There were no statistical differences in variables used in propensity- score matching. One-session success and stone-free rate were also higher in the painful group (73.7% and 71.0%, respectively) than in the painless group (63.6% and 60.4%, respectively). In multivariate non-Bayesian and Bayesian logistic regression models, a painful stone, shorter MSL, and lower MSD were significant factors for one-session stone-free status in patients who underwent SWL. CONCLUSIONS: Colic pain in patients with ureter calculi was one of the significant predicting factors including MSL and MSD for one-session stone-free status of SWL.
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Urology (비뇨의학교실) > 1. Journal Papers
Yonsei Authors
Lee, Joo Yong(이주용) ORCID logo https://orcid.org/0000-0002-3470-1767
Jung, Hae Do(정해도)
Cho, Kang Su(조강수) ORCID logo https://orcid.org/0000-0002-3500-8833
Choi, Young Deuk(최영득) ORCID logo https://orcid.org/0000-0002-8545-5797
Ham, Won Sik(함원식) ORCID logo https://orcid.org/0000-0003-2246-8838
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