| Peer-Reviewed

An Analysis of the Determinants of Fertility Differentials Amongst the Poorest Women Population in Kenya

Received: 2 July 2019    Accepted: 27 July 2019    Published: 13 August 2019
Views:       Downloads:
Abstract

Fertility is one of the major elements in population dynamics that has the highest significant contribution towards population size and structure in the world. In Kenya, fertility levels have been on the decline from approximately 8.1 children in 1979 to 3.9 children in 2014 but still, it is considered high compared to the country’s target of 2.6 by 2030. This has potentially negative consequences to the economic growth and development of a country. The main objective of this study is to determine demographic, socio-economic and cultural factors that explain fertility differential among poor women of childbearing age. A binary logistic regression model was fitted to DHS 2014 data using SPSS Version16. The total number of women in childbearing age is based on 7,262 women who have at least one child and whose age ranges from 15 to 49 years. The majority of women were married 4685 (64.5%), followed by never and formally married 1522 (21.0%) and living with partner 1055 (14.5%) respectively). In the analyses, all the variables Region, women educational level, marital status, age at first marriage and age in 5-years group were found to have a significant effect on the total number of children ever born at a significance level of 5%. From the fitted logistic regression model, the estimated odds ratio for the variable region reference category is Nyanza/Western region. The value of the odds ratio exp(β) =1.060775, for the region that the odds of having TCEB greater than or equals to five children for the North Eastern region has 6.0775% more than women in Nyanza/Western Region (OR=1.060775, C.I=0.873716-1.287883) and its effect is statistically significant.

Published in International Journal of Statistical Distributions and Applications (Volume 5, Issue 3)
DOI 10.11648/j.ijsd.20190503.13
Page(s) 60-66
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Fertility Levels, Binary Logistic Regression Model, DHS Data, Total Fertility Rate

References
[1] Adhikari, R. (2010). Demographic, Socio-economic, and cultural factors affecting fertility differentials in Nepal. BMC Pregnancy and Childbirth, 10 (19): 1-11.
[2] Alaba, O. O., Olubusoye, O. E., & Olaomi, J. O. (2017). Spatial patterns and determinants of fertility levels among women of childbearing age in Nigeria. South African Family Practice, 59 (4), 143-147.
[3] Anyara, E. L. & Hinde, A. (2006). Fertility transition in Kenya: A regional analysis of the proximate determinants. Applications & Policy Working Paper A06/0 (2006). Southampton Statistical Sciences Research Institute.
[4] Awes, A. A. (2014). Proximate Determinants of Fertility among Poor and Non-poor Women in Kenya. Unpublished MSc Research project in Population studies, University of Nairobi.
[5] Bongaarts, J. (1984). A simple method for estimating the contraceptive prevalence required to reach a fertility target. Studies in Family Planning, 15 (4): 184-90.
[6] Bongaarts, J. (1978). A Framework for Analyzing the Proximate Determinants of Fertility. Population and Development Review, 4, pp. 105-131.
[7] Bongaarts, J. and Casterline, J. (2012). Fertility Transition: Is sub-Saharan Africa Different? Population and Development review 38 (Supplement): 153–168.
[8] Caldwell J. (1992). Fertility decline in Africa: A new type of transition? Population and Development Review, 18 (2): 211-242.
[9] Caldwell, J. C. (2005). On net intergenerational wealth flows: An update. Population and Development Review 31 (4): 721-740.
[10] Desalegn Dargaso Dana (2018). Binary Logistic Regression Analysis of Identifying Demographic, Socioeconomic, and Cultural Factors that Affect Fertility among Women of Child bearing Age in Ethiopia. Science Journal of Applied Mathematics and Statistics. Vol. 6, No. 3, 2018, pp. 65-73. doi: 10.11648/j.sjams.20180603.11.
[11] Dube J., Tariku, D., and Mohammed, T. (2013). Determinants of High Fertility Status among Married Women in Gilgel Gibe Field Research Center of Jimma University, Oromia, Ethiopia: A Case Control Study”- Published online at http://journal.sapub.org/phr Copyright Scientific & Academic Publishing.
[12] Dutta, P. & Sarkar, S. (2014). Trend and Differentials of a Socio-Demographic Scenario and Extent of Adolescent Fertility in Maharashtra, India. Journal of Settlement and Spatial Planning, 5 (1): 31–47.
[13] Gomes, C. (2012). Adolescent fertility in selected countries of Latin America and Caribbean. Journal of Public Health and Epidemiology, 4 (5): 133-140.
[14] Gupta, N. & Mahy, M. (2003). Adolescent childbearing in sub-Saharan Africa: Can increased schooling alone raise ages at first birth? Demographic Research, 8 (4): 93-106.
[15] Hosmer, David W., Scott Taber, and Stanley Lemeshow. "The importance of assessing the fit of logistic regression models: a case study." American journal of public health 81, no. 12 (1991): 1630-1635.
[16] Kenya National Bureau of Statistics and ICF Macro (2015). 2014 Kenya Demographic and Health Survey: Key Findings. Calverton, Maryland, USA: KNBS and ICF Macro.
[17] LaValley, M. P. (2008). Statistical Primer for Cardiovascular Research: Logistic Regression. Journal of American Heart Association 117: 2395-2399.
[18] Lerch, M. (2019). Regional variations in the rural-urban fertility gradient in the global South. PLOS ONE, 14 (7), e0219624.
[19] Letamo, G. and Letamo, H. (2002). The Role of Proximate Determinants in Fertility Transition: A Comparative Study of Botswana, Zambia, and Botswana. SA Journal of Demography, 8 (1): 29-35.
[20] McCullagh, P. and Nelder, J. A. (1989) Generalized Linear Models, Chapman and Hall, London.
[21] Martin, T. C. (1995). Women's education and fertility: Result from 26 demographic and health surveys. Study in Family Planning, 26 (4): 187-202.
[22] Masanja, G. F. (2014). Rural-urban residence, modernism and fertility: a study of Mwanza region, Tanzania. African Population Studies, 28 (3), 1399-1412.
[23] Majumder, N., & Ram, F. (2015). Explaining the role of proximate determinants on fertility decline among poor and non-poor in Asian countries. PloS one, 10 (2), e0115441.
[24] Muhoza, D. N., Broekhuis, A., & Hooimeijer, P. (2014). Variations in desired family size and excess fertility in East Africa. International journal of population research, 2014.
[25] Nargund, G. (2009). Declining birth rate in Developed Countries: A radical policy re-think is required. Facts, views & vision in ObGyn, 1 (3), 191.
[26] NCPD (2013). Kenya Population situation analysis. Nairobi: Government of Kenya.
[27] Ndahindwa et al. (2014). Determinants of fertility in Rwanda in the context of a fertility transition: a secondary analysis of the 2010 Demographic and Health Survey”. Reproductive Health, 11: 87.
[28] Nwogwugwu, N. C. (2013). Socio-Demographic Determinants of Adolescent Fertility in Zambia. Student Thesis. University of the Witwatersrand, Johannesburg.
[29] Nyarko, S. H. (2012). Determinants of Adolescent Fertility in Ghana. International Journal of Sciences: Basic and Applied Research (IJSBAR), 5 (1): 21-32.
[30] Okech, T. C., Wawire, N. W., & Mburu, T. K. (2011). Contraceptive use among women of reproductive age in Kenya’s city slums. International Journal of Business and Social Science, 2 (1): 22-43.
[31] Omariba, D. W. R. (2006). Women’s educational attainment and intergenerational patterns of fertility behaviour in Kenya. Journal of biosocial science, 38 (4), 449-479.
[32] Onoja M, and Osayomore, I. (2012). Modeling the Determinants of Fertility among Women of Childbearing Age in Nigeria: Analysis Using Generalized Linear Modeling Approach. International Journal of Humanities and Social Science Vol. 2 No. 18.
[33] Retherford, R. D. and Thapa, S. (2003). Fertility in Nepal, 1981-2000: Level, trend, and component of change. Population and Health Series, No. 111.
[34] Rutaremwa, G. (2013). Factors associated with adolescent pregnancy and fertility in Uganda: analysis of the 2011 demographic and health survey data. Social Sciences, 2 (1): 7–13.
[35] Rutstein, S. O. and Kiersten J. (2004). “The DHS wealth index” DHS Comparative Reports No. 6. Calverton, Maryland, USA, ORC Macro.
[36] Serbessa, D. D. (2003). Differential impact of women's educational level on fertility in Africa: The case of Ethiopia. Addis Ababa.
[37] Shapiro, D., & Tambashe, O. (2000). Fertility transition in urban and rural areas of Sub-Saharan Africa. Population Research Institute, Pennsylvania State University.
[38] Sibanda, A., Woubalem, Z., Hogan, D. P. and Lindstrom, D. P. (2003). The proximate determinants of the decline to below-replacement fertility in Addis Ababa, Ethiopia. Studies in Family Planning, 34 (1): 1-7.
[39] Schultz, T. Paul (2005), “Fertility and Income” Yale University Economic Growth Center Discussion Paper No. 925.
[40] Timothy C. Okech, Dr. Nelson W. Wawire, Dr. Tom K. Mburu (2011). Contraceptive Use among Women of Reproductive Age in Kenya’s City Slums. International Journal of Business and Social Science, 2 (1): 22-43.
[41] Wasao, S. (2001). "A Comparative Analysis of the Socio-economic Correlates of Fertility in Cameroon and the Central African Republic”. A paper presented at the Workshop on Prospects for Fertility Decline in High Fertility Countries, New York, 9-11 July 2001.
[42] Zaba, B., Pisani, E., Slaymaker, E. & Ties Boerma, J. (2004). Age at first sex: understanding recent trends in African demographic surveys. Sexually Transmitted Infection, 80: 28-35.
[43] Zubairu Iliyasu, Hadiza S. Galadanci, Alfa I. Oladimeji, Musa Babashani, Auwalu U. Gajida, Muktar H. Aliyu. (2019) Predictors of Safer Conception Practices Among HIV-Infected Women in Northern Nigeria. International Journal of Health Policy and Management 8: 8, pages 480-487.
Cite This Article
  • APA Style

    Robert Mathenge Mutwiri. (2019). An Analysis of the Determinants of Fertility Differentials Amongst the Poorest Women Population in Kenya. International Journal of Statistical Distributions and Applications, 5(3), 60-66. https://doi.org/10.11648/j.ijsd.20190503.13

    Copy | Download

    ACS Style

    Robert Mathenge Mutwiri. An Analysis of the Determinants of Fertility Differentials Amongst the Poorest Women Population in Kenya. Int. J. Stat. Distrib. Appl. 2019, 5(3), 60-66. doi: 10.11648/j.ijsd.20190503.13

    Copy | Download

    AMA Style

    Robert Mathenge Mutwiri. An Analysis of the Determinants of Fertility Differentials Amongst the Poorest Women Population in Kenya. Int J Stat Distrib Appl. 2019;5(3):60-66. doi: 10.11648/j.ijsd.20190503.13

    Copy | Download

  • @article{10.11648/j.ijsd.20190503.13,
      author = {Robert Mathenge Mutwiri},
      title = {An Analysis of the Determinants of Fertility Differentials Amongst the Poorest Women Population in Kenya},
      journal = {International Journal of Statistical Distributions and Applications},
      volume = {5},
      number = {3},
      pages = {60-66},
      doi = {10.11648/j.ijsd.20190503.13},
      url = {https://doi.org/10.11648/j.ijsd.20190503.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijsd.20190503.13},
      abstract = {Fertility is one of the major elements in population dynamics that has the highest significant contribution towards population size and structure in the world. In Kenya, fertility levels have been on the decline from approximately 8.1 children in 1979 to 3.9 children in 2014 but still, it is considered high compared to the country’s target of 2.6 by 2030. This has potentially negative consequences to the economic growth and development of a country. The main objective of this study is to determine demographic, socio-economic and cultural factors that explain fertility differential among poor women of childbearing age. A binary logistic regression model was fitted to DHS 2014 data using SPSS Version16. The total number of women in childbearing age is based on 7,262 women who have at least one child and whose age ranges from 15 to 49 years. The majority of women were married 4685 (64.5%), followed by never and formally married 1522 (21.0%) and living with partner 1055 (14.5%) respectively). In the analyses, all the variables Region, women educational level, marital status, age at first marriage and age in 5-years group were found to have a significant effect on the total number of children ever born at a significance level of 5%. From the fitted logistic regression model, the estimated odds ratio for the variable region reference category is Nyanza/Western region. The value of the odds ratio exp(β) =1.060775, for the region that the odds of having TCEB greater than or equals to five children for the North Eastern region has 6.0775% more than women in Nyanza/Western Region (OR=1.060775, C.I=0.873716-1.287883) and its effect is statistically significant.},
     year = {2019}
    }
    

    Copy | Download

  • TY  - JOUR
    T1  - An Analysis of the Determinants of Fertility Differentials Amongst the Poorest Women Population in Kenya
    AU  - Robert Mathenge Mutwiri
    Y1  - 2019/08/13
    PY  - 2019
    N1  - https://doi.org/10.11648/j.ijsd.20190503.13
    DO  - 10.11648/j.ijsd.20190503.13
    T2  - International Journal of Statistical Distributions and Applications
    JF  - International Journal of Statistical Distributions and Applications
    JO  - International Journal of Statistical Distributions and Applications
    SP  - 60
    EP  - 66
    PB  - Science Publishing Group
    SN  - 2472-3509
    UR  - https://doi.org/10.11648/j.ijsd.20190503.13
    AB  - Fertility is one of the major elements in population dynamics that has the highest significant contribution towards population size and structure in the world. In Kenya, fertility levels have been on the decline from approximately 8.1 children in 1979 to 3.9 children in 2014 but still, it is considered high compared to the country’s target of 2.6 by 2030. This has potentially negative consequences to the economic growth and development of a country. The main objective of this study is to determine demographic, socio-economic and cultural factors that explain fertility differential among poor women of childbearing age. A binary logistic regression model was fitted to DHS 2014 data using SPSS Version16. The total number of women in childbearing age is based on 7,262 women who have at least one child and whose age ranges from 15 to 49 years. The majority of women were married 4685 (64.5%), followed by never and formally married 1522 (21.0%) and living with partner 1055 (14.5%) respectively). In the analyses, all the variables Region, women educational level, marital status, age at first marriage and age in 5-years group were found to have a significant effect on the total number of children ever born at a significance level of 5%. From the fitted logistic regression model, the estimated odds ratio for the variable region reference category is Nyanza/Western region. The value of the odds ratio exp(β) =1.060775, for the region that the odds of having TCEB greater than or equals to five children for the North Eastern region has 6.0775% more than women in Nyanza/Western Region (OR=1.060775, C.I=0.873716-1.287883) and its effect is statistically significant.
    VL  - 5
    IS  - 3
    ER  - 

    Copy | Download

Author Information
  • Department of Physical sciences, Kirinya University, Kerugoya, Kenya

  • Sections