Cohort study

As a prospective, observational cohort study, this study assesses the relationship between levels of cardiorespiratory fitness (CRF) and rates of acquiring and surviving a cancer diagnosis over Medicare age (≥65 years old). The sample (n=13,949) included men who participated in the Cooper Center Longitudinal Study and had Medicare part A and B claims of prostate, lung or colorectal cancer between 1999 and 2009. Anthropometric measurements were taken before the protocol, including height, weight,…

prospective cohort study is to evaluate the impact of second hand tobacco smoke (SHS) exposure and its effects of inducing asthma…

Mayo Clinic in Olmsted County Minnesota conducted a cohort study to evaluate recent trends in heart failure incidence and outcomes. The study was a two-stage design. The first part was community surveillance to estimate the incidence rate of Heart failure between 2000 and 2010 in Olmstead County. Patients that were enrolled in the first stage of the study were followed up for outcomes (mortality and hospitalization) in a patient level cohort study. Age-specific, sex-specific and…

becoming included in the elderly cohort. In the last 30 years, woman have entered the work force and have careers that take up much of their time. Not all couples are having children and the family size has shrunk for 5 to 6 children to 1 to 2 children. Some women have chosen their career over marriage. Therefore, for these reasons there is a new cohort of elderly women who are spouseless and childless. Thus, making their social supports limited. The study that was conducted by Goldberg,…

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The study design of the Evans study was based upon the use of both direct interview and observational study methods. For the direct interview methods, social demographic data, medical variables, employment status, and subjective indicators were obtained via personal interview Interviewers were trained during a three-day training session to ensure uniform interview processes. Completed interviews were obtained from 90% of eligible patients (Evans et al, 1985). The responses to these interview…

Thank you for contacting us. We're currently working with Dr. Stacy Johnson to automate the process of identifying PE and DVT patient cohort. For the PE task, we want to determine whether a patient has PE or not, if so, whether the PE is acute or chronic and its artery level. For the DVT task, we want to determine whether a patient has VT or not, superficial or deep, proximal or distal, acute or chronic, left or right, upper limbs or lower limbs. For both tasks, we also want to determine if the…

The findings of this study on neurocognitive performance of high school athletes who incur multiple concussions suggest athletes with a history of 3 or more concussions are still impaired on cognitive tasks and concussion symptoms [6].The authors used a cohort study design, the IVs were concussion groups (0,1,2,>3), and time ( baseline, 3 days, 8 days), the DVs were neurocognitive test scores measured by Immediate Post Concussion Assessment, cognitive testing (ImPact), neurocognitive test…

The cohort study titled “Coffee Consumption and Risk for Type 2 Diabetes Mellitus” (1) deals with the question of examining long-term relationship between caffeine consumption and incidents of type 2 diabetes mellitus. This prospective cohort study is significant because prevalence of type 2 diabetes mellitus has increased in the past decade and this increase is associated with diet and lifestyle factors, among which caffeine consumption occupies one of the central places. Therefore, the…

Table. Present status of 796 UK patients with βthalassaemia major Cohort Patients Deaths (%) Age at death 25 y 1945–54 25 21 (84) 8 12 1 1955–64 119 67 (56) 19 32 16 1965–74 188 63 (34) 14 37 12 1975–84 237 33 (14) 13 20 0 1985–94 179 5 (3) 5 0 0 1995 onwards 48 1 (2) 1 0 0 Total 796 190 (24) 60 101 29 Table options The figure shows Kaplan-Meier survival curves for 736 patients who survived beyond 12 years of age, by 10-year birth cohort. A progressive change in the curve is expected, reflecting…