scholarly journals The nature of the open birth interval distribution

2020 ◽  
Vol 4 ◽  
pp. 153
Author(s):  
John Ross ◽  
Kristin Bietsch
Keyword(s):  
Reproductive Behavior ◽  
Birth Interval ◽  
Contraceptive Use ◽  
Open Interval ◽  
Fertility Rate ◽  
General Fertility Rate ◽  
Children Ever Born ◽  
Two Parameters ◽  
Interval Distribution ◽  
Over Time

Background: The open birth interval -- the time since the woman’s latest birth -- is closely correlated to the usual fertility measures, but it adds important information from the age of the woman’s youngest child, with its implications for her freedom from domestic roles.  Studies of the open interval by age and parity can elucidate the transitions in reproductive behavior that women experience over time. Methods:  249 surveys of married women in 75 countries in the DHS series provide information on the open  interval by age and parity, and by the  fertility measures of the total fertility rate (TFR), the general fertility rate (GFR), and children ever born (CEB), with time trends.  Stata 15 and the “R” software were used, and a two-parameter equation was employed to model the distribution. Results:  The distribution of women by the open interval follows a downward curve from birth to 20 years; it varies across countries and over time only by its starting level and the steepness of the curve. Declines in the shortest intervals soon after birth reflect recent fertility declines. Variations are large by both age and parity, but in quite different patterns. Past modeling analyses demonstrate the effects of female and spouse mortality, declining fecundability, contraceptive use, and reduced sexual exposure. Both period and cohort effects can impact the curve. The open interval distribution is modelled in an equation with two parameters and calculated for the latest surveys in the 75 countries. Conclusions: The time since a woman’s birth is easily captured with a single question in successive surveys. Changes in the open interval distribution serve as sensitive indicators of recent fertility changes, and the dynamics of reproductive behavior across women’s life stages are captured in new ways, as gauged by age and parity trends in the distributions.

Changes in demand for children between 2003 and 2013 in Nigeria: Evidence from survey data

2018 ◽  
Vol 15 (1) ◽  
pp. 16-29
Author(s):  
Stella Babalola ◽  
Joshua O. Akinyemi ◽  
Clifford O. Odimegwu
Keyword(s):  
Health Surveys ◽  
Contraceptive Use ◽  
Religious Affiliation ◽  
Large Family ◽  
Fertility Rate ◽  
Demographic And Health Surveys ◽  
High Fertility ◽  
Fertility Desire ◽  
The North ◽  
Demand For Children

Abstract Nigeria has one of the highest fertility rates in Africa. Data from 2013 Demographic and Health Surveys indicate a virtual stagnation of fertility rate since 2003. Low contraceptive use and pronatalist attitudes are among the factors contributing to the high fertility rate in Nigeria. In this manuscript, we pooled data from three most recent waves of Demographic and Health Surveys to examine trends in demand for children over time and identify the factors associated with change in demand for children. The data show that demand for children has declined since 2003 although not monotonically so. Variables that were positively associated with increased likelihood of desiring no additional children were residence in the South-West (as opposed to residence in the North-Central), exposure to family planning (FP) messages on the mass media, number of children ever born, educational level, and urban residence. In contrast, uncertainty about fertility desire was more widespread in 2008 compared to 2013 although less widespread in 2003 than in 2013. The likelihood of being undecided about fertility desire was positively associated with discrepancies in family size desires between husband and wife, parity and Islamic religious affiliation. Programs should aim to increase access to effective contraceptive methods and promote demand for contraceptives as a way of fostering a sustainable reduction in demand for children. Furthermore, strategies that address uncertainty by fostering women’s understanding of the social and health implications of large family sizes are relevant.

scholarly journals Estimation of Fertility due to Contraception in Nepal

2018 ◽  
Vol 3 (2) ◽  
pp. 137-150
Author(s):  
Bijaya Mani Devkota
Keyword(s):  
Total Fertility Rate ◽  
Contraceptive Use ◽  
Population Policy ◽  
Unmet Need ◽  
Fertility Rate ◽  
Regression Equations ◽  
Background Characteristics ◽  
Unintended Pregnancies ◽  
The Impact ◽  
The Relationship

  Fertility has an important role for demographic transition and total fertility rate (TFR) which is one component measurements of fertility. Absences of complete and reliable data, a large number of indirect techniques have been developed to estimate demographic parameters. Some of these techniques are based on stable population theory and others are regression equations between the dependent variables, the TFR and the independent variables, the socio economic as well as demographic variables. The unwanted or unintended pregnancies can be avoided through the use of contraceptives; it becomes very important to estimate the births averted or pregnancies stopped by use of contraception. Though there is increase in the use of contraception, still many couples do not use contraception in spite of the fact that they require to use contraception. To satisfy this unmet need of contraception is one of the policy targets of national population policy for population stabilization. In this study, 12862 married females between 15-49 years of age, whose marital duration is more than 5 years, have been taken to study the distribution on different background characteristics and their behavior. Firstly, a regression study was done to know the impact on contraceptive use and further multivariate study has been carried out to know the effect of background characteristics and behavior on absence of birth five years jointly at different sub division. This method is based on the relationship between the Total fertility rate (TFR) and contraceptive prevalence rate (CPR).By using this modified estimate of TFR, birth averted for different area. The variables are CPR that about 71.4 percent variation in TFR can be explained by the first regression approach. The second is based on the relationship between total fertility rate (TFR) and Additive combination of CPR and proportion of currently married females having open birth interval (NPV) explained about 82percent of the variation in TFR. The findings revealed that the TFR calculated by the present method are quite close to the observed values of the TFR. Estimates of births averted and the percent change in births in the absence of contraception, based on the two methods are fairly consistent.

Pattern and determinant factors of birth intervals among Iranian women: a semi-parametric multilevel survival model

2019 ◽  
Vol 52 (4) ◽  
pp. 534-546
Author(s):  
Maryam Seyedtabib ◽  
Abbas Moghimbeigi ◽  
Mahmood Mahmoudi ◽  
Reza Majdzadeh ◽  
Hossein Mahjub
Keyword(s):  
Mass Media ◽  
Birth Interval ◽  
Family Income ◽  
Contraceptive Use ◽  
Frailty Model ◽  
Population Heterogeneity ◽  
Iranian Women ◽  
Birth Intervals ◽  
Effective Role ◽  
Using Data

AbstractThe interval between successive pregnancies (birth interval) is one of the main indexes used to evaluate the health of a mother and her child. This study evaluated birth intervals in Iran using data from the Iranian Multiple Indicators Demographic and Health Survey (IrMIDHS) conducted in 2010–2011. A total of 20,093 married Iranian women aged 15–54 years from the whole country constituted the study sample. Based on the nature of sampling and the unobserved population heterogeneity for birth intervals in each city and province, a multilevel survival frailty model was applied. Data were analysed for women’s first three birth intervals. The median first and second birth intervals were 30.3 and 39.7 months respectively. Higher education, Caesarean delivery, contraceptive use and exposure to public mass media were found to decrease the hazard rate ratio (HRR) of giving birth. Meanwhile, higher monthly income increased the hazard of giving birth. The results suggest that public mass media can play an effective role in encouraging women to have the recommended birth interval. Furthermore, increasing family income could encourage Iranian couples to decrease the time to their next birth.

scholarly journals Contraceptive Practice of Married Women: Experience from a Rural Community of Bangladesh

2014 ◽  
Vol 5 (1) ◽  
pp. 14-18
Author(s):  
Md Atiqur Rahman ◽  
Md Mahfuzar Rahman ◽  
Sazia Huq ◽  
Sardar Mahmud Hossain
Keyword(s):  
Side Effects ◽  
Life Expectancy ◽  
Contraceptive Use ◽  
Oral Contraceptive Pill ◽  
Married Women ◽  
Fertility Rate ◽  
Reproductive Age ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
High Level

Bangladesh is a country having high density of population in the world. Its fertility rate ranges from 4.1 to 5.49 and life expectancy is 66years while the total fertility rate of Asia is 2.2 and life expectancy 70 years. This descriptive type of cross sectional survey was carried out among 240 married women of reproductive age from July to December, 2012 in some villages of Keranigonj, Upazila, Dhaka. 73(31%) were practicing some methods of contraception, while 167 (69%) were not using it. OCP (Oral Contraceptive Pill) was the commonest method of contraception followed by Condoms 12(5%), Injectable 12(5%), Implant 12(5%) & Tubectomy 6(3%). None was found using IUCD and Traditional method ( withdrawal, rhythm method ) and emergency contraceptive method. The use of contraceptive was more common in grand multipara (p<0.01), >35 years old ladies (p<0.05). Non users of contraceptives in this study were 167 (69%) and the major reason for the non use was intention to have more children 53(31.46%) followed by pressure from the husband 21(12.35%), prohibition by the religion 18 (10.9%) and desire for son 17 (10.11%). Among the 73 contraceptive users 38 (52%) experienced side effects with the use of contraceptives. The commonest side effects were menstrual irregularities 17(23.8%) followed by change in body weight 8(11.19%). Frequency of contraceptive use was found comparatively low among rural married women despite high level of awareness. Desire for larger family, religious concerns and fear of side effects were the main factors responsible for non users. Religious scholars must play their role in clarifying many aspects regarding contraceptives. DOI: http://dx.doi.org/10.3329/akmmcj.v5i1.18767 Anwer Khan Modern Medical College Journal Vol. 5, No. 1: January 2014, Pages 14-18

scholarly journals Intergenerational Transmission of Reproductive Behavior during the Demographic Transition

2012 ◽  
Vol 42 (4) ◽  
pp. 543-569 ◽  
Author(s):  
Julia A. Jennings ◽  
Allison R. Sullivan ◽  
J. David Hacker
Keyword(s):  
Reproductive Behavior ◽  
Marital Fertility ◽  
Fertility Transition ◽  
Fertility Control ◽  
Population Database ◽  
Marriage Age ◽  
Number Of Children ◽  
Intergenerational Ties ◽  
Children Ever Born ◽  
New Evidence

New evidence from the Utah Population Database (updp) reveals that at the onset of the fertility transition, reproductive behavior was transmitted across generations—between women and their mothers, as well as between women and their husbands' family of origin. Age at marriage, age at last birth, and the number of children ever born are positively correlated in the data, most strongly among first-born daughters and among cohorts born later in the fertility transition. Intergenerational ties, including the presence of mothers and mothers-in-law, influenced the hazard of progressing to a next birth. The findings suggest that the practice of parity-dependent marital fertility control and inter-birth spacing behavior derived, in part, from the previous generation and that the potential for mothers and mothers-in-law to help in the rearing of children encouraged higher marital fertility.

scholarly journals Smart Fert: Aplikasi Praktis, Valid, dan Mudah Untuk Mengukur Indikator Fertilitas di Era Otonomi Daerah

Populasi ◽  
2018 ◽  
Vol 25 (1) ◽  
pp. 33
Author(s):  
Lutfi Agus Salim ◽  
Lutfan Lazuardi ◽  
Kuntoro Kuntoro
Keyword(s):  
Total Fertility Rate ◽  
Birth Rate ◽  
Crude Birth Rate ◽  
Visual Basic ◽  
Reproductive Rate ◽  
Fertility Rate ◽  
General Fertility Rate

Indikator fertilitas, seperti Crude Birth Rate (CBR), Total Fertility Rate (TFR), General Fertility Rate (GFR), dan Gross Reproductive Rate (GRR), untuk mengukur kinerja pengendalian penduduk setiap tahun di level kabupaten/kota sejak otonomi daerah sering tidak tersedia. Aplikasi sistem informasi fertilitas Smart Fert sebagai alat untuk mengukur indikator fertilitas yang praktis, valid, dan mudah diaplikasikan sangat layak untuk dikembangkan. Tujuan penelitian ini adalah mengembangkan aplikasi Smart Fert serta menguji hasil perhitungan indikator fertilitas dari aplikasi Smart Fert dibandingkan dengan perhitungan dari hasil Sensus Penduduk 2010. Penelitian ini merancang aplikasi Smart Fert berbasis bahasa visual basic. Untuk mengukur ketepatan dan kevalidan hasil perhitungan fertilitas dari aplikasi Smart Fert, maka hasilnya dibandingkan dengan standar yang baik, yaitu hasil Sensus Penduduk 2010. Hasil penelitian menunjukkan bahwa hasil perhitungan fertilitas dengan aplikasi Smart Fert tidak menunjukkan perbedaan signifikan dengan hasil metode langsung Sensus Penduduk 2010. Dengan demikian, aplikasi Smart Fert dapat dipakai sebagai alat penghitung indikator fertilitas yang praktis, valid, dan mudah diimplementasikan untuk mengukur kinerja pengendalian penduduk di tingkat kabupaten/kota.

scholarly journals A Decade of Stability and Change: Review of U.S. Adolescents' Sexual Behavior and Contraceptive Use 2006-2017

2020 ◽  
Author(s):  
Laura Lindberg ◽  
Lauren Firestein ◽  
Cynthia Beavin
Keyword(s):  
Sexual Behavior ◽  
Sexual Behaviors ◽  
Contraceptive Use ◽  
Sexual Experience ◽  
Adolescent Females ◽  
Same Sex ◽  
Stability And Change ◽  
Changes Over Time ◽  
Over Time ◽  
Sex Partner

This study examines changes over time, and demographic differentials, in the prevalence of select sexual behaviors and contraceptive use measures in a national sample of US adolescents. We used data on female and male adolescents aged 15-19 from the 2006-2010 (N=4,662), 2011-2015 (N=4,134), and 2015-2017 (N=1,810) National Survey of Family Growth. Logistic regression was used to identify differences between periods by gender, and for some measures by age, in sexual behaviors (penile-vaginal intercourse (PVI), oral or anal sex with an opposite-sex partner, sexual experience with a same-sex partner), contraceptive use and condom consistency. We estimated probabilities of age at first PVI with Kaplan-Meier failure analysis and tested for changes over time and differences by gender. Over half of all adolescents have engaged in at least one of the sexual behaviors measured. Between 2011-2015 and 2015-2017, males age 15-17 reported significant declines in all but same-sex partners, while the prevalence of sexual behaviors among older males and adolescent females overall remained generally stable. In each period, females were more likely than males to report a same-sex partner. Age of first PVI increased, but by age 17 the difference between time periods is minimal. Adolescent females report increases in the use at last sex of long-acting reversible contraceptive methods (3% to 18%) and multiple methods (27% to 41%). The condom use measures did not change over time. These findings identify components of both stability and change in adolescent sexual and contraceptive behavior in the last decade. Implications This analysis contributes a timely update on trends in adolescent sexual behavior and contraceptive use, showing that adolescents’ behaviors are complex and evolving. Sexual health information and services must be available so that young people have the resources to make healthy and responsible choices for themselves and their partners.

scholarly journals Correlates of Fertility in a Low Contraception Setting: A Study of Ogu of South-Western Nigeria

2009 ◽  
Vol 7 (1) ◽  
Author(s):  
Onipede Wusu
Keyword(s):  
Contraceptive Use ◽  
Fertility Transition ◽  
Least Square ◽  
Modern Contraceptive ◽  
Ordinary Least Square ◽  
First Marriage ◽  
Spousal Communication ◽  
Age At First Marriage ◽  
Modern Contraceptive Use ◽  
Children Ever Born

Total fertility rate in Nigeria is 5.7 compared with over 8 in the past. Modern contraceptive use within marriage is very low and socio-economic development is still crawling. What factors account for this fragile transition? This question is the focus of this study. The study examines the socioeconomic and cultural factors that account for fertility transition in the country. Data were gathered through a survey conducted among the Ogu of south-western Nigeria. Analysis employed descriptive statistical tools and Ordinary Least Square model. Analysis reveals that post primary education (especially among women), spousal discussion about family size, monogamous marriage and age at first marriage were inversely related to children ever born (CEB) among men and female respondents. The result suggests that moderate improvement in these factors are likely responsible for the fragile transition. Therefore, policies to raise literacy level especially among women, increase age at first marriage, promote monogamous marriage and spousal communication may accelerate the fragile transition in the country.

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