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1.
Soc Work Public Health ; 27(5): 482-506, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22873937

RESUMO

Since independence a massive personnel and public health infrastructure has been created in India. However, there is no competition and hardly any choice to the poor patients resulting in poor quality services leading to allocative and technical inefficiencies. This study uses the data envelopment analysis model to assess and compare the efficiency of health system within various states of India. It shows the inadequacy of health infrastructure and manpower in the inefficient states where poor people are concentrated. Among the determinants of efficiency female literacy, poverty level, institutional delivery, and full immunization of children are proved to be important factors in explaining efficiency of health system in India.


Assuntos
Eficiência Organizacional , Setor de Assistência à Saúde/normas , Disparidades em Assistência à Saúde , Garantia da Qualidade dos Cuidados de Saúde/normas , Alocação de Recursos , Adulto , Criança , Tomada de Decisões Gerenciais , Feminino , Setor de Assistência à Saúde/estatística & dados numéricos , Mão de Obra em Saúde/normas , Mão de Obra em Saúde/estatística & dados numéricos , Humanos , Imunização/estatística & dados numéricos , Índia , Masculino , Objetivos Organizacionais , Avaliação de Processos e Resultados em Cuidados de Saúde/métodos , Avaliação de Processos e Resultados em Cuidados de Saúde/estatística & dados numéricos , Dinâmica Populacional , Saúde Pública/normas , Alocação de Recursos/métodos , Alocação de Recursos/normas , Fatores Socioeconômicos , Estatísticas não Paramétricas , Taxa de Sobrevida
2.
Hum Biol ; 79(4): 395-412, 2007 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-18075004

RESUMO

We investigate the nutritional status of women in India and its relation to the prevalence of chronic energy deficiency (CED) and obesity. To do this, we have used the data from the Indian National Family Health Survey, 1998-1999, on body mass index (BMI) of ever-married women, ages 15-49 years, along with several socioeconomic factors, such as level of education, religion or caste, occupational status, and standard of living index. The study was based on 81,712 women from 26 states and 6 zones, which were grouped according to geographic proximity of the states of India. A multiple linear regression analysis was done to see the relation between nutritional status of women and different socioeconomic factors. The data reveal that the prevalences of CED, overweight, and obesity in India are 31.2%, 9.4%, and 2.6%, respectively. The incidences of CED and obesity are negatively related. The prevalence of CED is the lowest in Arunachal Pradesh and highest in Orissa. Punjab has the highest prevalence of obesity, and Bihar has the lowest. For the zonewise distribution the Northeast zone has the lowest degree of prevalence of CED and the East zone is at the bottom of the list with the highest degree of malnutrition. We also found that the nutritional status of women goes together with the enhancement of their educational status, standard of living, and so on. There are also significant differences between rural and urban sectors and among castes, religions, and occupations. Furthermore, regression analysis shows that all the socioeconomic variables considered here significantly affect BMI in Indian women.


Assuntos
Desnutrição/epidemiologia , Estado Nutricional , Obesidade/epidemiologia , Adolescente , Adulto , Índice de Massa Corporal , Doença Crônica , Escolaridade , Feminino , Humanos , Índia/epidemiologia , Pessoa de Meia-Idade , Inquéritos Nutricionais , Sobrepeso , Prevalência , Classe Social , Fatores Socioeconômicos , Saúde da Mulher
3.
Indian J Med Sci ; 61(9): 517-26, 2007 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-17785888

RESUMO

BACKGROUND: In order to develop, implement and evaluate policy for reducing maternal mortality, it is essential to study the risk factors associated with maternal deaths. AIMS: The study aims to determine the epidemiological risk factors and its related causes associated with maternal deaths in Delhi slums. MATERIALS AND METHODS: A community-based case-control study was designed, wherein snowball-sampling method was used to identify the maternal deaths (cases) in the community and circular systematic random sampling procedure was used to select the controls from the same area where a maternal death was found. STATISTICAL ANALYSIS: Data on 70 cases and 384 controls that had live births as the outcome of the pregnancy were analyzed. Logistic regression was applied to identify the risk factors. RESULTS: In the study population, most of the deliveries were conducted at home by untrained 'dais.' Cases were mostly illiterate, young, having high parity and no antenatal care taken during pregnancy (P CONCLUSIONS: The study findings suggest that women should be educated about the importance of antenatal registration and regular checkups. Untrained 'dais' should be trained to recognize the obstetric complications at an early stage and refer high-risk cases for adequate management. These preventive measures could help in reducing maternal mortality at the community level.


Assuntos
Mortalidade Materna/tendências , Adulto , Estudos de Casos e Controles , Feminino , Humanos , Índia , Áreas de Pobreza , Gravidez , Fatores de Risco , Adulto Jovem
4.
J Child Health Care ; 6(3): 203-19, 2002 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-12224837

RESUMO

Descriptions of breastfeeding practices among residents in slum areas of Kolkata and the influence of breastfeeding on postpartum amenorrhoea is the focus of this study. Three out of four women initiate breastfeeding after one hour of birth and three out of five women squeeze the first milk from the breast before breastfeeding. Though the median duration of breastfeeding is long, the duration of exclusive breastfeeding is much shorter. Breastfeeding during the first six months has a significant negative influence on the rate of return to menses.


Assuntos
Amenorreia , Aleitamento Materno , Período Pós-Parto , Pré-Escolar , Serviços de Planejamento Familiar , Feminino , Humanos , Índia , Lactente , Recém-Nascido , Masculino , Análise Multivariada , Áreas de Pobreza , Modelos de Riscos Proporcionais , Fatores de Tempo
5.
J Child Health Care ; 6(1): 34-50, 2002 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-12036175

RESUMO

Four northern states of India - Bihar, Madhya Pradesh, Rajasthan and Uttar Pradesh - lag far behind the other states of the country regarding demographic transition and socio-economic development. The study described in this article shows the utilization of child immunization services in these states, utilizing data from the National Family Health Survey, India, 1992-3 (IIPS, 1995a, 1995b, 1995c) The study used multivariate logistic regression to correlate the utilization of child immunization. The results showed that children are more likely to receive immunization if their parents are a couple, with the father literate and the mother with at least a middle-school-education level who received antenatal care or delivered in an institutional environment.


Assuntos
Imunização/estatística & dados numéricos , Pré-Escolar , Feminino , Humanos , Índia , Lactente , Modelos Logísticos , Masculino , Fatores de Risco
6.
Math Biosci ; 131(1): 1-21, 1996 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-8589535

RESUMO

The interval between marriage and the first birth in India, particularly in rural areas, is much longer than what is observed in western countries. In eastern Uttar Pradesh, the mean interval is observed to be even longer, possibly due to traditional customs such as the female partner's visits to her parents in the early years of marriage and the smaller chance of coition because of the observance of rigid intercourse taboos. Thus the models to explain the length of the interval of marriage to first birth proposed by Western demographers, which assume that the period of cohabitation between marriage and first birth is uninterrupted, often do not describe the data satisfactorily when applied to rural India. In this paper a model to describe data on first birth interval is proposed that takes account of the distributions of timing and periods of physical separation and variation in fecundity with effective marriage duration.


PIP: The author refers to literature reviews by Sheps and Menken on studies prior to 1972 and Leridon and Mode for more recent studies of the relationship between first birth and marriage. This study examines the probability distribution of time to first live birth in India and takes into account social customs and taboos that relate to physical separation of spouses and coital regulation. Visits to parents and the period of stay are assumed to interfere with coital frequency in the theoretical model. Data are obtained from the 1987-89 Survey of the Effects of Sociocultural Factors on the Determinants of Fertility in Eastern Uttar Pradesh (rural districts of Varanasi, Ghazipur, and Azamgarh). The sample includes about 350 households and currently married (7 or more years) women aged under 50 years in each religious/caste group for each district. Findings show that the mean duration of cohabitation between return marriage (RM) and the first visit to parents was about 14 months for upper caste Hindus compared to 1-3 months in the other religious/caste groups. The mean duration of stay before the first conception was about 13 months among upper caste Hindus compared to 8-11 months for middle caste Hindus, scheduled castes, and Muslims. Life table estimates are reported for the proportion of women who were still staying with parents during the first visit by months that elapsed since the time of the visit to parents and by age at RM and religion/caste. Life table estimates are given for the proportion of women who had not yet visited parents for the first time by month elapsed since RM and by age of the women. Among upper caste Hindus (Group I), the risk of first conception increased with an increase in age at RM in succeeding years. Among the other religions/castes (Group II), the risk in succeeding years was the same among women aged 14 and 15-16 years. Risk increased among women aged 17-19 years.


Assuntos
Intervalo entre Nascimentos , Cultura , Adolescente , Adulto , Coito , Feminino , Humanos , Índia , Recém-Nascido , Masculino , Casamento , Matemática , Modelos Biológicos , Gravidez , Fatores de Tempo
7.
Cancer ; 76(7): 1145-9, 1995 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-8630890

RESUMO

BACKGROUND: The role of resectional surgery in patients with advanced stages of gallbladder carcinoma has not been fully defined. It is generally believed that the survival depends on the stage of the disease, rather than on the treatment option. METHODS: Seventeen selected risk factors were analyzed using univariate and multivariate analyses to predict survival in 87 patients with gallbladder carcinoma who had undergone some form of surgical treatment. Similarly, a subset of 55 patients with American Joint Committee on Cancer Stage IV disease also was analyzed separately. RESULTS: Palpable mass, tumor (T) status, local infiltration, lymph node involvement, distant metastasis, TNM stage, and the type of surgical treatment (laparotomy alone, bypass, or resection) were significant risk factors by univariate analysis. In addition to palpable mass and the type of surgical treatment, age was also a significant predictor of survival by multivariate analysis. Multivariate analysis of patients with Stage IV disease revealed the same three factors to be significant. In this subset of patients, the median survival after resectional surgery was 16.3 months; after biliary and/or gastric bypass, 4.8 months; and after laparotomy alone, 1.6 months. CONCLUSIONS: The type of surgical treatment significantly influenced survival. Resectional surgery was associated with better survival compared with biliary and/or gastric bypass or laparotomy alone for patients with all stages of the disease, including those with advanced carcinoma of the gallbladder.


Assuntos
Neoplasias da Vesícula Biliar/mortalidade , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Análise de Variância , Feminino , Seguimentos , Neoplasias da Vesícula Biliar/patologia , Neoplasias da Vesícula Biliar/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Metástase Neoplásica , Estadiamento de Neoplasias , Fatores de Risco , Taxa de Sobrevida
8.
Janasamkhya ; 9(1-2): 25-41, 1991 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-12287690

RESUMO

PIP: In India, interviews with currently married women in 4448 households in rural areas of Varanasi, Ghazipur, and Azamgarh districts in Eastern Uttar Pradesh were conducted so researchers could examine differentials in breast feeding among the various socioeconomic groups and the determinants of breast feeding. Around 66% of all women continued to breast feed during the second year of life for the index child. More than 25% continued to breast feed for more than three years. Among Hindus, sons were breast fed three months longer and two months longer than daughters in upper and remaining caste groups, respectively. This difference was significant. Hindu women breast fed their children longer than did Muslim women. Among Hindus, upper caste, high social status, and high educational levels increased the likelihood of early weaning. Among the scheduled castes, mothers aged at least 25, low social status, and husbands working as laborers in the nonagricultural sector, breast fed for shorter duration than their counterparts. As maternal age increased so did the likelihood of breast feeding. For example, mothers aged 35-49 breast fed, on average, 10 months longer than did mothers aged less than 25.^ieng


Assuntos
Amenorreia , Aleitamento Materno , Tábuas de Vida , Fatores de Tempo , Ásia , Demografia , Países em Desenvolvimento , Saúde , Índia , Fenômenos Fisiológicos da Nutrição do Lactente , Fenômenos Fisiológicos da Nutrição , População , Dinâmica Populacional , Período Pós-Parto , Reprodução
9.
Eur J Clin Nutr ; 44(7): 515-25, 1990 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-2401282

RESUMO

It is posited that diarrhoeal illness during one period has influence on diarrhoeal illness in a subsequent period. This relationship may potentially mask the association between malnutrition and subsequent diarrhoea. To test this, we analysed data on cross-sectional anthropometry in combination with data on diarrhoeal morbidity collected longitudinally in a community-based study of 1262 children (aged 6-60 months) during March-December, 1976, in Matlab, Bangladesh. The results confirmed the posited relationship between diarrhoeal morbidities in two consecutive periods and showed that the risks of diarrhoeal attack and longer diarrhoeal illness increased more than threefold during the 2 months following diarrhoeal illness during the preceding 2 months (previous diarrhoea). Children with no previous diarrhoea indicated a positive association between malnutrition and subsequent diarrhoea, but the pattern found among children with previous diarrhoea was not understandable. Logistic regression analyses performed separately for younger and older children showed that controlling for effects of previous diarrhoea, maternal illiteracy and household poverty, severe malnutrition as assessed by weight-for-age was found to be strongly associated with the risk of longer diarrhoeal illness in a 2-month interval in the age group 24-60 months; in the same age group the association with the risk of diarrhoeal attack was significant at the 10 per cent level. No such association for malnutrition, however, was found in the age group 6-23 months.


Assuntos
Diarreia/epidemiologia , Distúrbios Nutricionais/epidemiologia , Bangladesh/epidemiologia , Pré-Escolar , Diarreia/complicações , Humanos , Lactente , Estudos Longitudinais , Morbidade , Distúrbios Nutricionais/complicações , Estado Nutricional , Análise de Regressão , Fatores de Risco
10.
Sankhya ; 51(1): 115-24, 1989 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-12283286

RESUMO

"A model for the time of first birth is presented under certain assumptions, which involve biological and socio-cultural factors." The model is illustrated using data from Rural Development and Population Growth--A Sample Survey, 1978, conducted in Varanasi, India, and involving some 3,514 households.


Assuntos
Intervalo entre Nascimentos , Ordem de Nascimento , Cultura , Modelos Teóricos , Características da População , Fatores Socioeconômicos , Ásia , Biologia , Coeficiente de Natalidade , Demografia , Países em Desenvolvimento , Economia , Fertilidade , Índia , População , Dinâmica Populacional , História Reprodutiva , Pesquisa
11.
Janasamkhya ; 6(1): 57-77, 1988 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-12315560

RESUMO

PIP: The authors develop a probability model to describe the length of intervals between successive live-births. Duration of post-partum abstinence and variation in coital pattern during the early part of the interval as a result of sociocultural practices are incorporated in the model's formulation. The model is applied to observed data.^ieng


Assuntos
Intervalo entre Nascimentos , Coeficiente de Natalidade , Modelos Teóricos , Projetos de Pesquisa , Pesquisa , Fatores Etários , Ásia , Coito , Demografia , Países em Desenvolvimento , Serviços de Planejamento Familiar , Fertilidade , Fertilização , Índia , População , Características da População , Dinâmica Populacional , Probabilidade , Reprodução , Abstinência Sexual , Comportamento Sexual
12.
Janasamkhya ; 5(2): 103-9, 1987 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-12281337

RESUMO

PIP: Brass's model for the distribution of births considered only births to fertile women, making it inapplicable for countries with low fertility or samples of women who differ markedly in terms of fecundability. The authors show that a simple extension of a modified Poisson distribution, considering females to comprise 2 groups with respect to fecundability (high versus low ability to conceive), describes satisfactorily the data provided by Brass. Brass had noted that the major discrepancies between the observed and expected distribution of births in low-fertility countries reflect the practice of contraception and variations in the rate of childbearing during the reproductive period. The analysis indicated that the proportion of subfecund females is 70-90% in developed countries, reflecting high contraceptive usage. In contrast, in India, the data show that only 14% of fertile females belong to the low-risk group and about 4% remain sterile throughout the reproductive period. The revised model was applied to data from a Rural Development and Population Growth survey conducted in Varanasi, India, in 1978. Only women who were married when under 20 years of age and did not practice contraception were included in the test of the model. The observed (expected) number of females in each number of births category was as follows: 0, 41 (41); 1, 25 (24.3); 2, 50 (51.8); 3, 96 (93.5); 4, 182 (183.8); 5, 261 (272.3); 2, 221 (221.1); 7, 86 (79.6); 8, 13 (9.4); and 9 and over, 2 (0.2).^ieng


Assuntos
Demografia , Fertilidade , Métodos , Modelos Teóricos , Paridade , Características da População , Dinâmica Populacional , População , Estatística como Assunto , Ásia , Coeficiente de Natalidade , Países em Desenvolvimento , Índia , Reprodução , Pesquisa
13.
Janasamkhya ; 5(2): 73-88, 1987 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-12281338

RESUMO

This paper develops probability distributions to describe the variations in the number of live birth-conceptions to a female during a given time interval (0, To) of length To. In the derivation, the interval (0, To) is divided into 2 consecutive segments, and fertility parameters within each segment are assumed to be constant but may differ between the segments. A method of obtaining maximum likelihood estimates of the parameters is outlined. The models are applied to an observed set of data. An application of the models in the evaluation of family planning programs is illustrated.


Assuntos
Coeficiente de Natalidade , Fertilidade , Modelos Teóricos , Dinâmica Populacional , População , Projetos de Pesquisa , Pesquisa , Fatores de Tempo , Ásia , Demografia , Países em Desenvolvimento , Fertilização , Índia , Reprodução
14.
Janasamkhya ; 5(2): 73-88, 1987 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-12281339

RESUMO

PIP: To apply models of the variation in the number if births to a couple throughout the reproductive period, it is necessary to account for variations that are dependent on age and parity. This paper presents time-dependent models for the number of live births/conceptions to a woman during given time intervals and applies these models to data derived from the Rural Development and Population Growth survey conducted in India in 1978. The reproductive span was segmented into 20-30 years and 30-35 years. Within each segment, fecundability was assumed to be constant but to vary between segments. The model assuming variability in fecundability provided a better fit to the data than the model assuming homogeneity. The data analysis suggests that about 4% of women are sterile at ages 20-35 years. The female population appears to consist of 2 groups with respect to fecundability: 1) a high-risk group (82.5%) with an average risk of conception of 0.7555 and 2) a low-risk group (17.5%) with an average conception rate of 0.2611. The average rate of conception for the 2 groups in the 20-39-year age period is 0.6607. These models can be used to demonstrate expected changes in fertility when contraceptives of varying degrees of effectiveness are used. If contraceptive effectiveness is increased 4 times, the expected number of births is decreased by 2.8 times/year.^ieng


Assuntos
Fatores Etários , Intervalo entre Nascimentos , Coeficiente de Natalidade , Demografia , Fertilidade , Fertilização , Métodos , Modelos Teóricos , Paridade , Dinâmica Populacional , População , Probabilidade , Estatística como Assunto , Fatores de Tempo , Ásia , Países em Desenvolvimento , Índia , Características da População , Reprodução , Pesquisa
15.
Janasamkhya ; 4(2): 147-60, 1986 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-12268732

RESUMO

PIP: This review describes analytical probability models for number of births in human populations. First the biological variables are defined: effective reproductive period; fecundability; fetal loss; non-susceptible period. The models are classified into 2 groups, depending on whether they are designed to conform to a Markov renewal process or not. Equations in each group are presented with increasing complexity, involving heterogeneity and taking into account dependence of factors on each other, such as fecundability on parity. Recently, statisticians have introduced into their models the use of contraceptive techniques and the possibility of switching between methods.^ieng


Assuntos
Demografia , Fertilidade , Cadeias de Markov , Métodos , Modelos Teóricos , Características da População , Probabilidade , Reprodução , Biologia , População , Dinâmica Populacional , Pesquisa , Estatística como Assunto
16.
Sankhya Ser B ; 47(3): 372-84, 1985 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-12268172

RESUMO

PIP: This paper presents probability models to describe the variation in number of live birth-conceptions to a group of females in two consecutive segments of the reproductive period. In derivation of the models, it is assumed that the parameters considered in the models remain constant in each segment but may differ between the segments. The models utilize the observed distribution of women according to the number of births given in two consecutive segments arranged in a bivariate table, providing more cells with significant number of observations for estimating the fertility parameters. A procedure to obtain the maximum likelihood estimates of some of the parameters is given. The models are applied to data for 977 Indian women surveyed in the 1978 Rural Developments and Population Growth Sample Survey.^ieng


Assuntos
Coeficiente de Natalidade , Demografia , Características da Família , Fertilidade , Métodos , Modelos Teóricos , Dinâmica Populacional , População , Probabilidade , Projetos de Pesquisa , Estatística como Assunto , Fatores Etários , Ásia , Países em Desenvolvimento , Índia , Reprodução , Pesquisa
17.
Janasamkhya ; 3(1-2): 9-27, 1985.
Artigo em Inglês | MEDLINE | ID: mdl-12340877

RESUMO

PIP: This paper proposes a model for number of births that considers the following factors: contraceptive practice and its effectiveness, the chance of undergoing induced abortion, the chance of undergoing sterilization following spontaneous induced abortion or live birth, and the length of time involved in deciding to undergo sterilization following a live birth. These variables are assumed to be dependent on parity as well as family size. The model is used to measure the percentage reduction in total fertility when several vertical family planning programs are in operation. Under the various program combinations, the proportions of females according to number of births during the 1st 30 years of marriage, average family size, and percentage reduction in number of births are calculated. The fertility reduction is higher among women with smaller family size desires, regardless of family planning program effort. The data further indicate that a higher reduction in total fertility can be attained through sterilization than through the use of highly effective contraception.^ieng


Assuntos
Aborto Induzido , Aborto Espontâneo , Comportamento Contraceptivo , Anticoncepção , Atenção à Saúde , Demografia , Doença , Estudos de Avaliação como Assunto , Características da Família , Serviços de Planejamento Familiar , Fertilidade , Planejamento em Saúde , Serviços de Saúde , Medicina , Modelos Teóricos , Paridade , Dinâmica Populacional , População , Complicações na Gravidez , Avaliação de Programas e Projetos de Saúde , Comportamento Sexual , Esterilização Reprodutiva , Coeficiente de Natalidade , Saúde , Organização e Administração , Pesquisa
18.
Sankhya ; 46(3): 320-30, 1984 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-12314009

RESUMO

"In this paper a probability model is proposed to describe the distribution of births to couples in first T years of marriage, when T is large and/or when couples use various methods of family planning. This model is derived on the assumption that conditional instantaneous risk of a conception, the incidence of foetal loss and the chance of attaining [sterility] following a child birth are functions of parity....The application of the model in evaluation of family planning programme changes in the child bearing pattern is illustrated."


Assuntos
Comportamento Contraceptivo , Demografia , Estudos de Avaliação como Assunto , Serviços de Planejamento Familiar , Fertilidade , Morte Fetal , Planejamento em Saúde , Infertilidade , Métodos , Modelos Teóricos , Mortalidade , Paridade , Probabilidade , Avaliação de Programas e Projetos de Saúde , Coeficiente de Natalidade , Anticoncepção , Organização e Administração , População , Dinâmica Populacional , Reprodução , Pesquisa , Estatística como Assunto
19.
Janasamkhya ; 2(1): 1-18, 1984 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-12267594

RESUMO

"This paper deals with derivation of models to describe the number of births to women during interval (O,T) of length T, when the start of the observation is marriage as well as when it is a distant point after marriage. These models are extensions of the models of Singh, et al., (1973) and of Sheps and Menken (1973) and can suitably be applied to data for short periods of observation as the parameters are assumed to be homogeneous in time. The methods to obtain maximum likelihood estimates of the parameters are outlined." The models are applied to data from a sample survey on rural development and population growth carried out by the Demographic Research Centre of Banaras Hindu University in 1978 in order to examine trends in fecundability and sterility by age of women.


Assuntos
Fatores Etários , Coeficiente de Natalidade , Fertilidade , Infertilidade , Casamento , Idade Materna , Métodos , Modelos Teóricos , Projetos de Pesquisa , Pesquisa , Estatística como Assunto , Ásia , Demografia , Países em Desenvolvimento , Índia , População , Características da População , Dinâmica Populacional , Reprodução
20.
Janasamkhya ; 1(2): 163-71, 1983 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-12312912

RESUMO

"Under some simple assumptions relating to the human reproduction process, an extension of a probability model describing the variations in the number of births to a female during a specified period of time (O, T) of length T, is proposed. The model is extended to a situation when the female population consists of two distinct groups with respect to fecundability. A procedure of estimation of some of the underlying parameters is given. The applicability of the model is illustrated with an observed distribution." Data for the illustration are from a population survey undertaken in Varanasi, India, in 1978.


Assuntos
Fertilidade , Modelos Teóricos , Probabilidade , Reprodução , Estatística como Assunto , Fatores de Tempo , Ásia , Demografia , Países em Desenvolvimento , Índia , População , Dinâmica Populacional , Pesquisa
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