A Retrospective Cohort Study of the Cumulative Survival Rate of Obturator Prostheses for Marsupialization

2017 ◽  
Vol 28 (2) ◽  
pp. e811-e816 ◽  
Author(s):  
Mamoru Murakami ◽  
Yasuhiro Nishi ◽  
Misaki Nishio ◽  
Yoko Minemoto ◽  
Takaharu Shimizu ◽  
...  
Keyword(s):  
Cohort Study ◽  
Survival Rate ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Cumulative Survival Rate ◽  
Cumulative Survival

scholarly journals Trends in 5-, 10-, 20-, and 30-year survival rates of beta-thalassemia patients in Southern Iran, 1995-2016: A retrospective cohort study

2017 ◽  
Author(s):  
Jafar Hassanzadeh ◽  
Alireza Mirahmadizadeh ◽  
Mehran Karimi ◽  
Yousef Veisani ◽  
Shahab Rezaeian
Keyword(s):  
Cohort Study ◽  
Survival Rate ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Survival Rates ◽  
Thalassemia Major ◽  
Beta Thalassemia ◽  
Birth Cohorts ◽  
Time Period ◽  
Causes Of Mortality

Background: There is currently lack of knowledge about survival trend analysis of thalassemia patients. Therefore, the aim of the present study was to assess 5-, 10-, 20-, and 30-year survival of thalassemia patients over a 20-year time period. Methods: In this retrospective cohort study, we analysed the data of 982 beta-thalassemia patients in Iran. Birth cohort and traditional cohort analyses were used to obtain the 5-, 10-, 20-, and 30-year survival rates in various time intervals between 1995 and 2016.Results: Five and 10-year survival rates remained unchanged since 1995-2016. Overall, 20- and 30-year survival rates were lower in younger birth cohorts than older ones. A declining trend was found in 20-year survival rate from 1995 to 2000 for all and also for thalassemia major patients, but was stable from 2001 to 2016. In addition, there was a declining trend in 30-year survival rate from 1995 to 2008 for all and also for thalassemia major patients, but was an increased trend from 2009 to 2016. Conclusion: Over the past two decades and in recent birth cohorts, the 20- and 30-year survival rates has declined. In other words, declining survival trends in the birth cohorts may be associated with some different causes of mortality such as exposure to the toxic effects of iron over time and the occurrence of diseaserelated mortality.

scholarly journals Continuous Blood purification on Influenza-Associated Neurological Disease in children: a retrospective cohort study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Jingwen Ni ◽  
Kenan Fang ◽  
Zhe Zhao ◽  
Zhiyuan Wang ◽  
Qian Huang ◽  
...  
Keyword(s):  
Cohort Study ◽  
Intensive Care ◽  
Survival Rate ◽  
Retrospective Cohort Study ◽  
Neurological Disease ◽  
Retrospective Cohort ◽  
Blood Purification ◽  
Parental Consent ◽  
Significant Difference ◽  
Continuous Blood Purification

Abstract Background Due to lack of proven therapies, we evaluated the effect of CBP on Influenza-Associated Neurological Disease in children. Methods A single-center, retrospective, cohort study was conducted in Luoyang, Henan province, China from January 2018 to January 2020. Children (<18 years) with influenza-associated neurological disease were enrolled in the study. Children with indications for CBP and parental consent received CBP (Continuous Blood purification), while others received maximal intensive care treatment because of the absence of parental consent. The outcomes of the CBP and non-CBP groups were compared. Categorical variables were presented as percentage and compared by Chi-square test. Continuous variables were expressed as median (interquartile ranges) and compared with non-parametric independent sample test. Statistical analyses were carried out by SPSS (version 26.0) and p < 0.05 (2 tailed) was considered to be statistically significant. Results 30 children with influenza-associated neurological disease were recruited to the study. 18 received CBP and the other 12 received maximal intensive care. There were no differences between CBP and non-CBP children in age, sex, body weight, type of influenza virus, neurological complications, Glasgow score, PIM-2 score and PCIS at admission (p > 0.05). The inflammatory factors (CRP, PCT and IL-6) of 30 cases were tested at admission and after 3 days of admission. In the CBP group, there was a significant decrease in IL-6 levels at 3 days of admission (p = 0.003) and a decrease in CRP and PCT levels, but no significant difference (p > 0.05). In the non-CBP group, there were no significant difference on levels of CRP, PCT and IL-6 at admission and 3-day of admission (p > 0.05). The 28-day mortality was significantly lower in the CBP group compared with the non-CBP group (11.11% vs. 50%, p = 0.034). Conclusions CBP definitely reduces IL-6 levels significantly. We did find that the survival rate of patients in the CBP group was improved. But we don’t know if there is a relationship between the reduction of IL-6 levels and the survival rate. Trial registration: http://www.chictr.org.cn/index.aspx(ChiCTR2000031754).

scholarly journals Predictors of Loss to Follow-Up among HIV-Infected Adults after Initiation of the First-Line Antiretroviral Therapy at Arba Minch General Hospital, Southern Ethiopia: A 5-Year Retrospective Cohort Study

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Mathewos Alemu Gebremichael ◽  
Mekdes Kondale Gurara ◽  
Haymanot Nigussie Weldehawaryat ◽  
Melkamu Merid Mengesha ◽  
Dessalegn Ajema Berbada
Keyword(s):  
Cohort Study ◽  
Antiretroviral Therapy ◽  
General Hospital ◽  
Retrospective Cohort Study ◽  
Survival Probability ◽  
Retrospective Cohort ◽  
First Line ◽  
Loss To Follow Up ◽  
Cumulative Survival

Background. Loss to follow-up (LTFU) from antiretroviral therapy (ART) reduces treatment benefits and leads to treatment failure. Hence, this study was aimed at determining the incidence of loss to follow-up and predictors among HIV-infected adults who began first-line antiretroviral therapy at Arba Minch General Hospital. Methods. We carried out an institutional-based retrospective cohort study, and data were collected from the charts of 508 patients who were selected using a simple random sampling technique. All the data management and statistical analyses were conducted using STATA version 14. Cumulative survival probability was estimated and presented in the life table, and the Kaplan-Meir survival curves were compared using the log-rank test. The Cox proportional hazard model was used to identify the independent predictors. Results. We followed 508 patients for 871.9 person-years. A total of 46 (9.1%) experienced loss to follow-up, yielding an overall incidence rate of 5.3 (95% CI: 3.9-7.1) per 100 person-years. The cumulative survival probability was 90%, 88%, 86%, and 86% at the end of one, two, three, and four years, respectively. The predictors identified were age less than 35 years (adjusted hazard ratio ( aHR = 1.96 ; 95% CI: 1.92-4.00)), rural residence ( aHR = 1.98 ; 95% CI: 1.02-3.83), baseline body weight greater than 60 kilograms ( aHR = 2.19 ; 95% CI: 1.11-4.37), a fair level of adherence ( aHR = 11.5 ; 95% CI: 2.10-61.10), and a poor level of adherence ( aHR = 12.03 ; 95% CI: 5.4-26.7). Conclusions. In this study, the incidence rate of loss to follow-up was low. Younger adults below the age of 35 years, living in rural areas, with a baseline weight greater than 60 kilograms, which had a fair and poor adherence level were more likely to be lost from treatment. Therefore, health professionals working in ART clinics and potential stakeholders in HIV/AIDS care and treatment should consider adult patients with these characteristics to prevent LTFU.

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