Diflucan for oral yeast infection

These variables diflucan for oral yeast infection have to be summarized with frequency measures such as ratios, proportions, and rates. Incidence, prevalence, and mortality rates are three frequency measures that are used to characterize the occurrence of health events in a diflucan for oral yeast infection population. Objectives After studying this lesson and answering the questions in the exercises, diflucan for oral yeast infection you will be able to: Calculate and interpret the following epidemiologic measures: Ratio Proportion Incidence proportion (attack rate) Incidence rate Prevalence Mortality rate Choose and apply the appropriate measures of association and measures diflucan for oral yeast infection ofpublic health impact Major Sections Frequency Measures. 351 Measures of Risk Page 31 Frequency Measures Numerator = upper portion of a fraction Denominator = lower portion of a fraction A measure of central location provides a single value that summarizes an entire distribution of data. In contrast, a frequency measure characterizes only part of the distribution. Frequency measures compare one part of the distribution to another part of the distribution, or to the entire distribution.

Common frequency measures are ratios, proportions, and rates. All three frequency measures have the same basic form: numerator , n denominator Recall that: 100 = 1 (anything raised to the 0 power equals 1) 101 = 10 (anything raised to the diflucan for oral yeast infection 1st power is the value itself) 102 = 10 x 10 = 100 103 = 10 x 10 x 10 = 1,000 So the fraction of (numerator/denominator) can be multiplied by 1, 10, 100, 1000, and so on. This multiplier varies by measure and will be addressed in each section. Ratio Definition of ratio A ratio is the relative magnitude of two quantities or a comparison of any two values. It is calculated by dividing one interval or ratioscale variable by the other. Therefore, one could compare apples with oranges or apples with number of physician visits. Method for calculating a ratio Number or rate of events, items, persons, etc. in one group Number or rate of events, items, persons, etc. in another group.

After the numerator is divided by the denominator, the result is often expressed as the result “to one” or written as the result “:1. ” Note that in certain ratios, the numerator and denominator are different categories of the same variable, such as males and females, or persons 2029 years and 3039 years of age. In other ratios, the numerator and denominator are completely different variables, such as the number of hospitals in a city and the size of Measures of Risk Page 32 the population living in that city. EXAMPLE: Calculating a Ratio — Different Categories of Same Variable Between 1971 and 1975, as part of the National Health and Nutrition Examination Survey (NHANES), 7,381 persons ages 4077 years were enrolled in a followup study. 1 At the time of enrollment, each study participant was classified as having or not having diabetes order Prazosin Generic no prescription. During 19821984, enrollees were documented either to have died or were still alive. Original Enrollment (19711975) Dead at FollowUp (19821984) Diabetic men 189 100 Nondiabetic men 3,151 811 Diabetic women 218 72 Nondiabetic women 3,823 511 Of the men enrolled in the NHANES followup study, 3,151 were nondiabetic and 189 were diabetic.