PERTANIKA JOURNAL OF SCIENCE AND TECHNOLOGY

 

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Home / Regular Issue / JST Vol. 31 (5) Aug. 2023 / JST-3917-2022

 

Estimating Disability-Free Life Expectancy of Malaysian Population Using the Sullivan's Approach

Khairunnisa Mokhtar, Syazreen Niza Shair and Norazliani Md Lazam

Pertanika Journal of Science & Technology, Volume 31, Issue 5, August 2023

DOI: https://doi.org/10.47836/pjst.31.5.20

Keywords: Disability; disability-free life expectancy, life table, morbidity, Sullivan's method

Published on: 31 July 2023

As we age, the chances of becoming disabled tend to increase due to an accumulation of health risks from a lifetime of illness, injury, and disability. This research examines the increasing life expectancy of the Malaysian population in relation to their disability status from 2015 to 2019. Disability-free life expectancy (DFLE) was computed using the Sullivan's approach; subsequently, compression or expansion of disability over the two observation years, 2015 and 2019, were analysed. Malaysian disability prevalence rates by age groups for 2015 and 2019 were used to execute this research. In addition, the respective mortality rates by age were gathered from the Department of Statistics of Malaysia. Results showed that, as life expectancy increases, the number of years lived without a disability would rise significantly while the anticipated number of years with a disability will be concurrently declining, suggesting evidence of disability compression. It was also observed that the median age at which the number of years spent with a disability higher than without a disability was 55 in 2015, then delayed to 67.5 in 2019. This study informs medical practitioners and health policymakers about the average lifespan of Malaysians without disabilities, which can indicate the population's general health status.

  • Ahmad, N. A., Mohamad Kasim, N., Mahmud, N. A., Mohd Yusof, Y., Othman, S., Chan, Y. Y., Abd Razak, M. A., Yusof, M., Omar, M., Abdul Aziz, F. A., Jamaluddin, R., Ibrahim Wong, N., & Aris, T. (2017). Prevalence and determinants of disability among adults in Malaysia: Results from the National Health and Morbidity Survey (NHMS) 2015. BMC Public Health, 17(1), 1-10. https://doi.org/10.1186/s12889-017-4793-7

  • Brønnum-Hansen, H., Eriksen, M. L., Andersen-Ranberg, K., & Jeune, B. (2017). Persistent social inequality in life expectancy and disability-free life expectancy: Outlook for a differential pension age in Denmark? Scandinavian Journal of Public Health, 45(4), 459-462. https://doi.org/10.1177/1403494816683591

  • Brown, G. C. (2015). Living too long: Republican time in cooper’s leatherstocking novels. Nineteenth-Century Literature, 77(1), 29-55. https://doi.org/10.1525/ncl.2022.77.1.29

  • Cruz, G. T., Cruz, C. J. P., & Saito, Y. (2022). Is there compression or expansion of morbidity in the Philippines? Geriatrics & Gerontology International, 22(7), 511-515. https://doi.org/10.1111/ggi.14398

  • Department of Social Welfare. (2021). Older person. Department of Social Welfare. https://www.jkm.gov.my/jkm/index.php?r=portal/submenu&id=UkQ5T2ZCTlVkeWFYU2pJZGM5QlE5UT09

  • Dudel, C., & Myrskylä, M. (2020). Estimating the number and length of episodes in disability using a Markov chain approach. Population Health Metrics, 18(1), 1-9. https://doi.org/10.1186/s12963-020-00217-0

  • Fries, J. F. (2000). Compression of morbidity in the elderly. Vaccine, 18(16), 1584–1589. https://doi.org/10.1016/S0264-410X(99)00490-9

  • Fries, J. F., Bruce, B., & Chakravarty, E. (2011). Compression of morbidity 1980-2011: A focused review of paradigms and progress. Journal of Aging Research, 2011, Article 261702. https://doi.org/10.4061/2011/261702

  • Hairi, N. N., Bulgiba, A., Cumming, R. G., Naganathan, V., & Mudla, I. (2010). Prevalence and correlates of physical disability and functional limitation among community dwelling older people in rural Malaysia, a middle income country. BMC Public Health, 10, 1-13. https://doi.org/10.1186/1471-2458-10-492

  • Ibrahim, N. S. M., Shair, S. N., & Yusof, A. Y. (2020). Mortality rates and life expectancy improvements among Malaysian elderlies. Indonesian Journal of Electrical Engineering and Computer Science, 19(1), 134-139. https://doi.org/10.11591/ijeecs.v19.i1.pp134-139

  • Imai, K., & Soneji, S. (2012). On the estimation of disability-free life expectancy: Sullivan’s method and its extension. Journal of the American Statistical Association, 102(480), 1199-1211. https://doi.org/10.1198/016214507000000040

  • Jagger, C., Oyen, H. Van, & Robine, J. M. (2014). Health expectancy calculation by the sullivan method: A practical guide. Newcastle University Isntitute of Ageing. http://www.eurohex.eu/pdf/Sullivan_guide_pre final_oct 2014.pdf

  • Jagger, C., Robine, J. M., Van Oye, V. O., Cox, B., Cambois, E., Romieu, I., Clavel, A., & Le Roy, S. L. (2007). Health Expectancy Calculation by the Sullivan Method: A Practical Guide [EHEMU Technical report 2006_3]. https://webgate.ec.europa.eu/chafea_pdb/assets/files/pdb/2006109/2006109_d5sullivan_guide_final_jun2007.pdf

  • Knott, L. (2022). Disability in older people (Causes and treatment). Patient. https://patient.info/doctor/disability-in-older-people

  • Macrotrends.net. (2023). Malaysia Life Expectancy 1950-2023. https://www.macrotrends.net/countries/MYS/malaysia/life-expectancy

  • Ministry of Economy (2021). Abridged life table, Malaysia 2019-2021. Department of Statistics Malaysia. chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.dosm.gov.my/site/downloadrelease?id=abridged-life-tables-malaysia-2019-2021&lang=English

  • Mathers, C. D. M., Sadana, R., Salomon, J. A., Murray, C. J., & Lopez, A. D. (2000). Estimates of DALE for 191 countries: Methods and results (Working Paper No. 16). World Health Oreganization. https://www.who.int/healthinfo/paper16.pdf%0Ahttp://www.who.int/entity/healthinfo/paper16.pdf

  • Minagawa, Y., & Saito, Y. (2018). An analysis of factors related to disability-free life expectancy at 65 years of age across Japanese prefectures in 2010. European Journal of Ageing, 15(1), 15-22. https://doi.org/10.1007/s10433-017-0433-4

  • Moreno, X., Albala, C., Lera, L., Leyton, B., Angel, B., & Sánchez, H. (2018). Gender, nutritional status and disability-free life expectancy among older people in Santiago, Chile. PLoS ONE, 13(3), 1-10. https://doi.org/10.1371/journal.pone.0194074

  • Moreno, X., Lera, L., & Albala, C. (2020). Disability-free life expectancy and life expectancy in good self-rated health in Chile: Gender differences and compression of morbidity between 2009 and 2016. PLoS ONE, 15(4), 1-12. https://doi.org/10.1371/journal.pone.0232445

  • National Institute of Health (2019). NCDs - Non-communicable diseases: Risk Factors and other health problems (Technical Report Vol. 1). National Institutes of Health. chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://iku.gov.my/images/IKU/Document/REPORT/NHMS2019/Report_NHMS2019-NCD_v2.pdf

  • Omar, M. H., Asmuni, N. H., & Shima, S. N. (2019). Healthy life expectancy vs health expenditure by sullivan method in Malaysia. Indonesian Journal of Electrical Engineering and Computer Science, 14(1), 402-406. https://doi.org/10.11591/ijeecs.v14.i1.pp402-406

  • Prina, A. M., Wu, Y. T., Kralj, C., Acosta, D., Acosta, I., Guerra, M., Huang, Y., Jotheeswaran, A. T., Jimenez-Velazquez, I. Z., Liu, Z., Llibre Rodriguez, J. J., Salas, A., Sosa, A. L., & Prince, M. (2020). Dependence- and disability-free life expectancy across eight low- and middle-income countries: A 10/66 study. Journal of Aging and Health, 32(5-6), 401-409. https://doi.org/10.1177/0898264319825767

  • Romero, D. E., Leite, I. da C., & Szwarcwald, C. L. (2005). Healthy life expectancy in Brazil: applying the Sullivan method. Cadernos de Saúde Pública / Ministério Da Saúde, Fundação Oswaldo Cruz, Escola Nacional de Saúde Pública, 21(suppl 1), S7-S18. https://doi.org/10.1590/s0102-311x2005000700002

  • Stiefel, M. C., Perla, R. J., & Zell, B. L. (2010). A healthy bottom line: Healthy life expectancy as an outcome measure for health improvement efforts. The Milbank Quarterly, 88(1), 30-53. https://doi.org/10.1111/j.1468-0009.2010.00588.x

  • United Nations. (2019). World population ageing 2019. United Nations. chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.un.org/en/development/desa/population/publications/pdf/ageing/WorldPopulationAgeing2019-Highlights.pdf

  • Wolf, D. A., & Laditka, S. B. (1997). Stochastic modeling of active life and its expectancy [Working Paper]. Center for Policy Research. https://surface.syr.edu/cpr/419/

  • Yong, V., & Saito, Y. (2009). Trends in healthy life expectancy in Japan: 1986-2004. Demographic Research, 20, 467-494. https://doi.org/10.4054/DemRes.2009.20.19