Silodosin as a predisposing factor of intraoperative floppy iris syndrome (IFIS): an observational propensity score-matching cohort study

Abstract Purpose: To evaluate the correlation between silodosin and Intraoperative Floppy Iris Syndrome (IFIS) and compare it with other a1- adrenergic receptor antagonists (a1-ARAs) and other factors predisposing to IFIS.Methods: From the cases who underwent phacoemulsification between 2014 and 2020, we identified all patients who, during their preoperative assessment, reported an a1-ARAs intake (exposed group). These patients were matched utilizing a propensity score matching analysis, with an otherwise homogenous group of patients (control group), based on demographics and systemic/ocular comorbidities.Results: 350 patients were included in each group. In the exposed group, 177 (50.6%) patients were exposed to tamsulosin, 105 (30%) to alfuzosin, 43 (12.2%) to silodosin. Regarding IFIS, it was observed in 21.5% of patients on tamsulosin (38/177), 11.4% on alfuzosin (12/105), 37.2% on silodosin (16/43), and 3.4% in the controlled group (12/350). In a multiple regression model analysis, the only two factors that were significantly associated with IFIS development were silodosin and tamsulosin yielding an adjusted odds ratio of 8.471 (95%CI: 4.005-17.920), and 3.803 (95%CI: 2.231-6.485), respectively.Conclusion: Silodosin has been demonstrated as a predisposing factor, strongly correlated with IFIS development. These results should increase awareness to cataract surgeons, to carefully assess their patients preoperatively for exposure to silodosin, and employ the appropriate prophylactic measures to ameliorate the impact of silodosin intake on the surgical outcome.

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Dialyzer Classification and Mortality in Hemodialysis Patients: A 3-Year Nationwide Cohort Study

Frontiers in Medicine ◽

10.3389/fmed.2021.740461 ◽

2021 ◽

Vol 8 ◽

Author(s):

Masanori Abe ◽

Ikuto Masakane ◽

Atsushi Wada ◽

Shigeru Nakai ◽

Kosaku Nitta ◽

...

Keyword(s):

Cohort Study ◽

Propensity Score ◽

Propensity Score Matching ◽

Subgroup Analysis ◽

Hemodialysis Patients ◽

Type I ◽

High Flux ◽

Type Iv ◽

Japanese Classification ◽

Type V

Background: Dialyzers are classified as low-flux, high-flux, and protein-leaking membrane dialyzers internationally and as types I, II, III, IV, and V based on β2-microglobulin clearance rate in Japan. Type I dialyzers correspond to low-flux membrane dialyzers, types II and III to high-flux membrane dialyzers, and types IV and V to protein-leaking membrane dialyzers. Here we aimed to clarify the association of dialyzer type with mortality.Methods: This nationwide retrospective cohort study analyzed data from the Japanese Society for Dialysis Therapy Renal Data Registry from 2010 to 2013. We enrolled 238,321 patients on hemodialysis who were divided into low-flux, high-flux, and protein-leaking groups in the international classification and into type I to V groups in the Japanese classification. We assessed the associations of each group with 3-year all-cause mortality using Cox proportional hazards models and performed propensity score matching analysis.Results: By the end of 2013, 55,308 prevalent dialysis patients (23.2%) had died. In the international classification subgroup analysis, the hazard ratio (95% confidence interval) was significantly higher in the low-flux group [1.12 (1.03–1.22), P = 0.009] and significantly lower in the protein-leaking group [0.95 (0.92–0.98), P = 0.006] compared with the high-flux group after adjustment for all confounders. In the Japanese classification subgroup analysis, the hazard ratios were significantly higher for types I [1.10 (1.02–1.19), P = 0.015] and II [1.10 (1.02–1.39), P = 0.014] but significantly lower for type V [0.91 (0.88–0.94), P < 0.0001] compared with type IV after adjustment for all confounders. These significant findings persisted after propensity score matching under both classifications.Conclusions: Hemodialysis using protein-leaking dialyzers might reduce mortality rates. Furthermore, type V dialyzers are superior to type IV dialyzers in hemodialysis patients.

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Edoxaban versus warfarin on stroke risk in patients with atrial fibrillation: a territory-wide cohort study

10.1101/2021.01.04.21249209 ◽

2021 ◽

Author(s):

Dicken Kong ◽

Jiandong Zhou ◽

Sharen Lee ◽

Keith Sai Kit Leung ◽

Tong Liu ◽

...

Keyword(s):

Atrial Fibrillation ◽

Cohort Study ◽

Ischemic Stroke ◽

Propensity Score ◽

Ischaemic Stroke ◽

Propensity Score Matching ◽

Lower Risk ◽

Cox Regression ◽

Significant Risk ◽

Risk Predictors

AbstractBackgroundIn this territory-wide, observational, propensity score-matched cohort study, we evaluate the development of transient ischaemic attack and ischaemic stroke (TIA/Ischaemic stroke) in patients with AF treated with edoxaban or warfarin.MethodsThis was an observational, territory-wide cohort study of patients between January 1st, 2016 and December 31st, 2019, in Hong Kong. The inclusion were patients with i) atrial fibrillation, and ii) edoxaban or warfarin prescription. 1:2 propensity score matching was performed between edoxaban and warfarin users. Univariate Cox regression identifies significant risk predictors of the primary, secondary and safety outcomes. Hazard ratios (HRs) with corresponding 95% confidence interval [CI] and p values were reported.ResultsThis cohort included 3464 patients (54.18% males, median baseline age: 72 years old, IQR: 63-80, max: 100 years old), 664 (19.17%) with edoxaban use and 2800 (80.83%) with warfarin use. After a median follow-up of 606 days (IQR: 306-1044, max: 1520 days), 91(incidence rate: 2.62%) developed TIA/ischaemic stroke: 1.51% (10/664) in the edoxaban group and 2.89% (81/2800) in the warfarin group. Edoxaban was associated with a lower risk of TIA or ischemic stroke when compared to warfarin.ConclusionsEdoxaban use was associated with a lower risk of TIA or ischemic stroke after propensity score matching for demographics, comorbidities and medication use.

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Laparoscopic versus open liver resection for intrahepatic cholangiocarcinoma: Report of an international multicenter cohort study with propensity score matching

Surgery ◽

10.1016/j.surg.2021.08.015 ◽

2021 ◽

Author(s):

Raffaele Brustia ◽

Alexis Laurent ◽

Claire Goumard ◽

Serena Langella ◽

Daniel Cherqui ◽

...

Keyword(s):

Cohort Study ◽

Liver Resection ◽

Propensity Score ◽

Propensity Score Matching ◽

Intrahepatic Cholangiocarcinoma ◽

Multicenter Cohort Study ◽

Open Liver Resection ◽

Multicenter Cohort ◽

International Multicenter

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Association of hypertension and incident diabetes in Chinese adults: a retrospective cohort study using propensity-score matching

10.21203/rs.3.rs-23730/v1 ◽

2020 ◽

Author(s):

Yang Wu ◽

Haofei Hu ◽

Jinlin Cai ◽

Runtian Chen ◽

Xin Zuo ◽

...

Keyword(s):

Cohort Study ◽

Propensity Score ◽

Propensity Score Matching ◽

Diabetes Risk ◽

Incident Diabetes ◽

Chinese Adults ◽

Hypertensive Patients ◽

Hypertensive Group ◽

High Propensity ◽

Doubly Robust Estimation

Abstract Background Previous studies have revealed that hypertension is one of major risk factors of incident diabetes. However, reliable quantification of the relationship between hypertension and diabetes risk is limited, especially in Chinese people. We aimed to investigate the association between hypertension and risk of incident diabetes in a large cohort of Chinese population. Methods This was a retrospective propensity score-matched cohort study. We enrolled 211809 Chinese adults without diabetes at baseline between 2010 and 2016. The target independent and dependent variable were hypertension at baseline and incident diabetes during follow-up respectively. The one to one propensity score matching using a non-parsimonious multivariable logistic regression was conducted to balance the confounders between 28,946 hypertensive patients and 28,946 non-hypertensive participants. The doubly robust estimation method was used to investigate the association between hypertension and incident diabetes. Result After propensity-score matching, the cumulative incidence of diabetes among hypertensive and non-hypertensive participants were 1627.690 per 100,000 person-years and 1414.422 per 100,000 person-years, respectively. In the propensity-score matching cohort, compared to the non-hypertensive participants, the risk of incident diabetes increased by 14.0% among hypertensive subjects (HR = 1.140, 95% confidence interval (CI): 1.058–1.229, P = 0.00063). After adjusting for the demographic and clinical covariates, diabetes risk increased by 13.1% in the hypertensive group (HR = 1.131, 95%CI: 1.049–1.220, P = 0.00143). And diabetes risk increased by 15.4% among hypertensive subjects after adjusting for the propensity score (HR = 1.154, 95%CI:1.070–1.244, P = 0.00019).In the subgroup analysis, compared to non-hypertensive participants with low propensity score, the risk of incident diabetes increased by 2.6 times among hypertensive patients with high propensity score (HR = 3.610,95%CI: 2.604–5.005,P < 0.00001). In the sensitivity analysis, the risk of diabetes in the hypertensive group increased by 11.7% in the original cohort (HR = 1.117༌95%CI: 1.044–1.196,P = 0.00134) and 19.9% in the weighted cohort(HR = 1.199༌95%CI: 1.149–1.250,P < 0.00001), respectively. Conclusion Hypertension was associated with a 13.1% increase in the risk of developing diabetes in Chinese adults. Additionally, compared to non-hypertensive participants with low propensity score, the risk of incident diabetes increased by 2.6 times among hypertensive patients with high propensity score.

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Regular aspirin intake and prognosis of TxN2-3M0 nasopharyngeal carcinoma: A cohort study based on propensity score matching

Oral Oncology ◽

10.1016/j.oraloncology.2020.104589 ◽

2020 ◽

Vol 103 ◽

pp. 104589

Author(s):

Hui Chang ◽

Ya-lan Tao ◽

Wei-jun Ye ◽

Wei-wei Xiao ◽

Yun-fei Xia ◽

...

Keyword(s):

Cohort Study ◽

Nasopharyngeal Carcinoma ◽

Propensity Score ◽

Propensity Score Matching ◽

Regular Aspirin

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Impact of Influenza Vaccination on Mortality in the Oldest Old: A Propensity Score-Matched Cohort Study

Vaccines ◽

10.3390/vaccines8030356 ◽

2020 ◽

Vol 8 (3) ◽

pp. 356

Author(s):

Pauline Walzer ◽

Clémentine Estève ◽

Jeremy Barben ◽

Didier Menu ◽

Christine Cuenot ◽

...

Keyword(s):

Cohort Study ◽

Propensity Score ◽

Influenza Vaccine ◽

Influenza Vaccination ◽

Propensity Score Matching ◽

Oldest Old ◽

Immunization Coverage ◽

All Cause Mortality ◽

Comorbidity Index ◽

The Impact

Influenza remains a major cause of illness and death in geriatric populations. While the influenza vaccine has successfully reduced morbidity and mortality, its effectiveness is suspected to decrease with age. The aim of this study was to assess the impact of influenza vaccination on all-cause mortality in very old ambulatory subjects. We conducted a prospective cohort study from 1 July 2016 to 31 June 2017 in a large unselected ambulatory population aged over 80 years. We compared all-cause mortality in vaccinated versus unvaccinated subjects after propensity-score matching, to control for age, sex and comorbidities. Among the 9149 patients included, with mean age 86 years, 4380 (47.9%) were vaccinated against influenza. In total, 5253 (57.4%) had at least one chronic disease. The most commonly vaccinated patients were those with chronic respiratory failure (76.3%) and the least commonly vaccinated were those suffering from Parkinson’s disease (28.5%). Overall, 2084 patients (22.8%) died during the study. After propensity score matching, the mortality was evaluated at 20.9% in the vaccinated group and 23.9% in the unvaccinated group (OR = 0.84 [0.75–0.93], p = 0.001). This decrease in mortality in the vaccinated group persisted whatever the age and Charlson Comorbidity index. In conclusion, nearly a half of this ambulatory elderly population received Influenza vaccine. After adjustment on comorbidities, influenza vaccination was associated with a significant decrease in all-cause mortality, even in the eldest multimorbid population. Improving immunization coverage in this frail older population is urgently needed.

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