… member of a study population has been under observation or treatment. It is obtained by multiplying the number of years by the number of members of a sample population who have had a certain… a confidence interval narrows as the number of observations increases or its variance (dispersion) decreases.…
…growth is defined by the variance of growth within the reference population. The normal range usually is defined as length or height within 2 standard deviations (SD) from the population mean (Z-score between …
… captures the total variance in HRV. TP is sometimes reported as the total variance over 24 hours and sometimes as the 24-hour average of five-minute variances,… rates (especially >85 to 90 per minute) associated with a variety of adverse outcomes in large population studies . Heart rate variability (HRV) measures the fluctuations in the RR intervals (also referred …
… statistical method for combining data that incorporates only within-study variance. Assumes that all studies represent the same population for which there is a single "true" effect size. A graphical display …
… the prevalence of AF in a 75- to 76-year-old population (2011) in Sweden was about 12 percent . Similar patterns were reported in a European population-based prospective cohort… or an increase in dispersion of right atrial refractory periods may contribute…
Japanese Journal
母分散の不偏推定値はなぜn‐1で割られるのか(2)
野口 智草,宇津木 成介
奈良学園大学紀要 = Bulletin of Naragakuen University (7), 127-133, 2017-09-29