title: Some analytical models to estimate maternal age at birth using age-specific fertility rates.
abstract: "A class of analytical models to study the distribution of maternal age at different births from the data on age-specific fertility rates has been presented. Deriving the distributions and means of maternal age at birth of any specific order, final parity and at next-to-last birth, we have extended the approach to estimate parity progression ratios and the ultimate parity distribution of women in the population.... We illustrate computations of various components of the model expressions with the current fertility experiences of the United States for 1970."
mesh_terms: D000367:Age Factors; D000569:Americas; D001722:Birth Order; D001723:Birth Rate; D003710:Demography; D019049:Developed Countries; D005191:Family Characteristics; D005195:Family Relations; D005298:Fertility; D008423:Maternal Age; D008962:Models, Theoretical; D009656:North America; D010290:Parents; D010298:Parity; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D012106:Research; D014481:United States
keywords: Age Factors; Age Specific Fertility Rate; Americas; Birth Order; Birth Rate; Demographic Factors; Developed Countries; Family And Household; Family Characteristics; Family Relationships; Fertility; Fertility Measurements; Fertility Rate; Maternal Age; Models, Theoretical; North America; Northern America; Parental Age; Parity; Parity Progression Ratio; Population; Population Characteristics; Population Dynamics; Research Methodology; United States