Demographic and Health Surveys Methodology - Measure DHS

KNOWLEDGE OF THE FERTILE PERIODStatistics: Percent Distribution of Women, by Knowledge of the Fertile Period During theOvulatory CycleDefinitionA. Coverage:1. Population base.a) All women (all interviewed women between ages 15 and 49 years).b) Women who currently use periodic abstinence.c) Women who do not currently use periodic abstinence.2. Time period: Current as defined by the respondent.B. Numerators: Number of women within each base by category of knowledge of the fertile period.C. Denominator: Number of women who are in each population base.CalculationPercent distribution—The numerator divided by the denominator, expressed as a percentage. Categoriesadd to 100 percent total.Handling of Missing ValuesWomen who did not know or have a missing value for knowledge of the fertile period are included asseparate categories in the distribution. Women who have a missing value for current method are includedas nonusers of periodic abstinence.Notes and ConsiderationsGuide to DHS Statistics 50 Updated September 2006