Events per person-time (incidence rate): a misleading statistic? Stat.Med - Kraemer () Citation Context ...d only case in which the incidence rate (―events per person-year‖) estimates an interpretable population parameter, namely the reciprocal of the mean time to event, regardless of ...
Incidence rates in CFAS I and II for six 5 year age groups are shown in Fig. 2. The reduction in incidence is calculated as an incidence rate ratio (IRR) 0.8 (95% CI: 0.6–1.0, P=0.08, Poisson regression, N=10,444). Table 1 Incidence rates per 1,000 person years by age ...
States found that the incidence rate for symptomatic vertebral fractures in white women was 0.1 per 100 person-years16, higher than a major nationwide study in the UK which reported an incidence of 0.032 per 100 person-years in men and 0.06 per 100 person-years in women aged 20 and above...
The corresponding increases in incidence rate were 58 to 174 per 105 person-years among men, and 31 to 90 per 105 person-years among women. The male to female ratio was 1.7:1 (Fig. 1). The rise in incidence was most prominent within the middle-aged population (age 45–64 years), ...
incidenceratemeansthatin10,000at-riskpeopletherewillbe50casesperyear, untilthenumberofcasesmountstothepointthatthenumberofpeopleatrisk decreases.Theincidenceratetellsusthe"forceofmorbidity",andwecanexpress itas5casesper1,000person-years,0.005peryear,or0.5%/year.Therateimplies ...
The persistence rate was defined as 1 minus the probability of experiencing remission, and persistence curves were compared using the log-rank test according to sex and age groups. Sleep trajectories were examined by looking at year-person transitions between each consecutive year, summed over the ...
The overall incidence rate (IR) was 11.32 per 1000 person-years (95% CI, 10.34-12.41 per 1000 person-years). As anticipated, there was a significant increase in dementia IRs with age from an incidence of 4.38 (95% CI, 3.49-5.57) in people aged 65 to 69 years to 24.69 (95% CI, ...
Bose A, Konradsen F, John J, Suganthy P, Muliyil J, Abraham S: Mortality rate and years of life lost from unintentional injury and suicide in South India. Trop Med Int Health. 2006, 11: 1553-6. 10.1111/j.1365-3156.2006.01707.x. Article PubMed Google Scholar Hang HM, Byass P, ...
Among 462 participants, 45 progressed from normal to MCI, with an incidence rate of 80.9 cases per 1000 person-years (95% CI 60.4–108.3 per 1000 person-years). The incidence rates of each subgroup, crude and adjusted HR (95% CI) were summarized in Supplementary Table S1 online. Variables...
As for mortality rate, it was 1.08 per 1000 person-years and covered 26% of all mortality8. Taking into account the current and possible future economic and healthcare burden of stroke, and the fact that epidemiologic parameters of the Kazakhstani population were never properly assessed, there ...