On the impossibility of inferring cohort fertility measures from period fertility measures
نویسندگان
چکیده
منابع مشابه
Tempo-Adjusted Period Parity Progression Measures, Fertility Postponement and Completed Cohort Fertility
In this paper we introduce a new set of tempo-adjusted period parity progression measures in order to account for two distinct implications caused by delays in childbearing: tempo distortions imply an underestimation of the quantum of fertility in observed period data, and the fertility aging effect reduces higher parity births because the respective exposure is shifted to older ages when the p...
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Environmental effects on fertility measures early in lactation, such as the interval from calving to first luteal activity (CLA), proportion of samples with luteal activity during the first 60 days after calving (PLA) and interval to first ovulatory oestrus (OOE) were studied. In addition, traditional measurements of fertility, such as pregnancy to first insemination, number of inseminations pe...
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In Kohler and Ortega (2002a) [online available at Demographic Research, Volume 6, Article 6], we introduce a new set of tempo-adjusted period parity progression measures in order to account for two distinct implications caused by delays in childbearing: tempo distortions imply an underestimation of the quantum of fertility in observed period data, and the fertility aging effect reduces higher p...
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Background and Purpose: Birth outcomes and fertility measures are commonly evaluated in Maternal and Child Health Integrated Program (MCHIP) in the field of public health. Given the key role of time- trend study in the projection of current data to the future, this population-based study aimed to describe the significant changes of birth outcomes and fertility measures in the rural population...
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ژورنال
عنوان ژورنال: Demographic Research
سال: 2001
ISSN: 1435-9871
DOI: 10.4054/demres.2001.5.2