scholarly journals Retrospective cohort study of 4591 Straumann implants in private practice setting, with up to 10‐year follow‐up. Part 1: multivariate survival analysis

2014 ◽  
Vol 26 (11) ◽  
pp. 1345-1354 ◽  
Author(s):  
David French ◽  
Hannu Larjava ◽  
Ronen Ofec
Keyword(s):  
Cohort Study ◽  
Survival Analysis ◽  
Retrospective Cohort Study ◽  
Private Practice ◽  
Retrospective Cohort ◽  
Practice Setting ◽  
Multivariate Survival Analysis ◽  
Multivariate Survival

scholarly journals Distribution of Cancer cases and survival analysis results: A retrospective cohort study

2019 ◽  
Vol 29 (Supplement_4) ◽  
Author(s):  
E Pehlivan ◽  
B Mete ◽  
V Söyiler
Keyword(s):  
Cohort Study ◽  
Survival Analysis ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
World Health ◽  
Cox Regression Analysis ◽  
Risk Of Death ◽  
Incidence Of Cancer ◽  
The Mean

Abstract Background Cancer was the second leading cause of death in Turkey. The aim of this study is to examine the changes in the incidence of cancer cases and survival analysis in a region. Methods This retrospective cohort study was carried out on data of 977 people had been diagnosed with cancer between the years 2013-2015 in Bingol province located in the east of Turkey. All cancer cases are included in the study. The data of the patients were obtained from the Ministry of Health Cancer Registry System and International Disease Classification Oncology (ICD-O) codes published by World Health Organization were used. Patients were evaluated topographically (tissue originating from the lesion) in 41 categories. Kruskal Wallis, Mann Whitney U test, Chi-square test and Cox regression analysis were used to analyze the data. Results The mean age of the patients was 58.73 ± 16.80 (min: 1-max: 107). It was observed that 28.7% of the patients died during the follow-up period and 71.3% of the patients were alive. 30% of the cancer cases digestive system, 11% respiratory system, 23% female breast- genitalia, 15% blood-lymph-thyroid, 11.8% muscle-bone, 15,4% other cancer species. In men, lung, stomach, colon, prostate; breast, thyroid and skin cancers are more common in women respectively. The incidence rate for all age groups was 97 per hundred thousand in 2013, 161 per hundred thousand in 2015. The increase trend did not differ by gender. The mean follow-up period of the patients who died was 388 days and 1541 days for the living patients. The risk of death is increased significantly in patients who cannot be operated (RR = 2.779, HR = 3.048). In patients not receiving chemotherapy, the risk of death is reduced significantly (RR = 0.656, HR = 0.340). Conclusions The incidence of cancer increases in the study area. Survival times vary according to treatment efficacy. Broad-based cohort studies evaluating the effects of treatment types on survival may be recommended. Key messages Cancer in the study area shows a significant increase from year to year. The average 5-year survival period of cancer patients was found is 71% as a good result.

Status and Determinants of Treatment Outcomes Among New Tuberculosis Patients in South Korea: A Retrospective Cohort Study

2021 ◽  
pp. 101053952110005
Author(s):  
Hyunjin Son ◽  
Jeongha Mok ◽  
Miyoung Lee ◽  
Wonseo Park ◽  
Seungjin Kim ◽  
...  
Keyword(s):  
Cohort Study ◽  
South Korea ◽  
Success Rate ◽  
Treatment Outcomes ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Health Care Facilities ◽  
Tuberculosis Patients ◽  
Lost To Follow Up

This is a retrospective cohort study using notification data in South Korea. We evaluated the nationwide status, regional differences, and the determinants of treatment outcomes among tuberculosis patients. Treatment success rate improved from 77.0% in 2012 to 86.0% in 2015. The lost to follow-up rate was higher among older people, males, and foreign nationals. Health care facilities designated for the Public-Private Mix (PPM) project showed higher success rate and lower rate of lost to follow-up. Moreover, municipalities with low regional deprivation index had higher PPM project coverage. Since there is a large regional difference in the coverage of the PPM project, an additional community-based support program should be implemented, especially for tuberculosis patients residing in region with low PPM project coverage.

scholarly journals Pioglitazone use and Parkinson’s disease: a retrospective cohort study in Taiwan

BMJ Open ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. e023302 ◽  
Author(s):  
Hsiu-Feng Wu ◽  
Li-Ting Kao ◽  
Jui-Hu Shih ◽  
Hui-Han Kao ◽  
Yu-Ching Chou ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Cohort Study ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Asian Population ◽  
Secondary Outcome ◽  
Study Cohort ◽  
Patients With Diabetes

ObjectivesMany researchers have expected pioglitazone to serve as an effective neuroprotective agent against Parkinson’s disease (PD). Therefore, we conducted this cohort study to investigate the association between pioglitazone use and PD by using a large Asian population-based dataset in Taiwan.DesignRetrospective cohort study.SettingTaiwan.Participants7906 patients with diabetes who had received pioglitazone were defined as the study cohort, and 7906 matched patients with diabetes who had not received pioglitazone were defined as the comparison cohort.Primary and secondary outcome measuresWe tracked each patient individually over a 5-year follow-up period to identify those diagnosed as having PD during this period. We performed Cox proportional hazard regression analyses to evaluate the HRs for PD between the study and comparison cohorts.ResultsThe findings indicated that among the sampled patients, PD occurred in 257 (1.63%): 119 (1.51%) pioglitazone users and 138 (1.75%) non-users. The adjusted HR for PD within the follow-up period was 0.90 (95% CI: 0.68 to 1.18) in the patients who had received pioglitazone compared with the matched patients who had not received pioglitazone. Moreover, this study revealed that pioglitazone use was not associated with PD incidence in men (HR: 1.06, 95% CI: 0.71 to 1.59) or women (HR: 0.84, 95% CI: 0.61 to 1.15).ConclusionsThis study did not find the relationship between pioglitazone use and PD incidence, regardless of sex, among an Asian population of patients with diabetes.

scholarly journals Survival analysis for patients with cancer in Gaza applying for Israeli permits to exit the Gaza Strip for health care: a retrospective cohort study of patients from 2008 to 2017

The Lancet ◽  
2021 ◽  
Vol 398 ◽  
pp. S20
Author(s):  
Benjamin Bouquet ◽  
Francesco Barone-Adesi ◽  
Mohamed Lafi ◽  
Kathryn Quanstrom ◽  
Federica Riccardi ◽  
...  
Keyword(s):  
Health Care ◽  
Cohort Study ◽  
Survival Analysis ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Gaza Strip ◽  
Patients With Cancer ◽  
The Gaza Strip
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