title: [[Demographic data and spline interpolation]].
abstract: Five formulas of spline interpolation and their applications to demographic data are introduced.  "The formulas are applied to (1) interpolating and smoothing values of life table functions....(2) interpolating births by five-year age groups of mothers into single ages....(3) interpolating cause-specific deaths by five-year age groups into single ages....[and] (4) interpolating and smoothing two-dimensional demographic data e.g. mortality rates and expectations of life by year and age." (SUMMARY IN ENG)
authors.forename: Z
authors.initials: Z
authors.lastname: Nanjo
mesh_terms: D000367:Age Factors; D002423:Cause of Death; D003710:Demography; D005298:Fertility; D008017:Life Expectancy; D015993:Life Tables; D008136:Longevity; D008423:Maternal Age; D008722:Methods; D008962:Models, Theoretical; D009026:Mortality; D010290:Parents; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D012106:Research; D013223:Statistics as Topic
keywords: Age Factors; Causes Of Death; Demographic Analysis; Demographic Factors; Estimation Technics; Fertility; Length Of Life; Life Expectancy; Life Table Method; Life Tables; Maternal Age; Mathematical Model; Methodological Studies; Models, Theoretical; Mortality; Parental Age; Population; Population Characteristics; Population Dynamics; Research Methodology; World