Cohort Studies: Prospective versus Retrospective [PDF]
Cohort studies form a suitable study design to assess associations between multiple exposures on the one hand and multiple outcomes on the other hand. They are especially appropriate to study rare exposures or exposures for which randomization is not possible for practical or ethical reasons.
Carmine Zoccali+3 more
openaire +3 more sources
Outcomes following laminoplasty or laminectomy and fusion in patients with myelopathy caused by ossification of the posterior longitudinal ligament: A systematic review [PDF]
Study Design Systematic review. Objective To compare laminoplasty versus laminectomy and fusion in patients with cervical myelopathy caused by OPLL. Methods A systematic review was conducted using PubMed/Medline, Cochrane database, and Google scholar of ...
Limthongkul, Worawat+4 more
core +2 more sources
There is no age limit for methadone: a retrospective cohort study [PDF]
Data from the US indicates that methadone-maintained populations are aging, with an increase of patients aged 50 or older. Data from European methadone populations is sparse. This retrospective cohort study sought to evaluate the age trends and related developments in the methadone population of Basel-City, Switzerland.The study included methadone ...
Dürsteler-MacFarland, Kenneth M.+3 more
openaire +4 more sources
a retrospective cohort study [PDF]
Background Metastasis of colorectal cancer (CRC) is directly linked to patient survival. We previously identified the novel gene Metastasis Associated in Colon Cancer 1 (MACC1) in CRC and demonstrated its importance as metastasis inducer and prognostic ...
Herrmann, Pia+5 more
core +1 more source
Brucellosis in Qatar: A retrospective cohort study
Background:We conducted a retrospective cohort study to evaluate the clinical manifestations, laboratory findings, complications and treatment of brucellosis in the State of Qatar.Methods:The medical records of patients in Hamad Medical Corporation, Doha, Qatar were reviewed from January 2000 to December 2006.
Walid Ibrahim+3 more
openaire +3 more sources
Breast feeding practices and views among diabetic women: a retrospective cohort study [PDF]
Objective: to explore the pattern and experiences of breast-feeding practices among diabetic women. Design: retrospective cohort study using maternal records and postal questionnaires in a Baby-Friendly hospital. Participants: diabetic mothers including
Dickinson, F. M.+3 more
core +1 more source
Tuberculosis and homelessness in Montreal: a retrospective cohort study [PDF]
Abstract Background Montreal is Canada's second-largest city, where mean annual tuberculosis (TB) incidence from 1996 to 2007 was 8.9/100,000. The objectives of this study were to describe the epidemiology of TB among homeless persons in Montreal and assess patterns of transmission and sharing of key locations.
Fiona McIntosh+9 more
openaire +4 more sources
Gestational age at delivery and special educational need: retrospective cohort study of 407,503 schoolchildren [PDF]
<STRONG>Background</STRONG> Previous studies have demonstrated an association between preterm delivery and increased risk of special educational need (SEN).
A Brady+25 more
core +4 more sources
Hypertension in older patients, a retrospective cohort study [PDF]
It is unknown to what extent General Practitioners (GPs) manage hypertension (HT) differently in older patients, as compared to younger age groups. The purpose of our study was to compare HT management in older patients to younger age groups.We performed a retrospective cohort study of patients of 159 GP's practices in the Integrated Primary Care ...
P.W. Moorman+3 more
openaire +3 more sources
Risk of suicide during treatment with venlafaxine, italopram, fluoxetine, and dothiepin : retrospective cohort study [PDF]
Objective To compare the risk of suicide in adults usingthe antidepressant venlafaxine compared with citalopram, fluoxetine, and dothiepin. Design Retrospective cohort study. Setting UK General Practice Research Database. Participants 219 088 patients,
Andrews, Elizabeth+5 more
core +2 more sources