abstract: 'PURPOSE: In middle-income countries, interest in the Study of

  inequalities in health has focused on aggregate types of health

  outcomes, like rates of mortality. This work moves beyond such measures

  to focus on disease-specific health outcomes with the use of national

  health survey data.

  METHODS: Cross-sectional data from the national Health and Welfare

  Survey 2003, covering 52,030 adult aged 15 or older, were analyzed. The

  health outcomes were the 20 most commonly reported diseases. The age-sex

  adjusted concentration index (C{*}) of ill health was used as a measure

  of socioeconomic health inequality (values ranging from -1 to +1). A

  negative (or positive) concentration index shows that a disease was more

  concentrated among the less well off (or better off). Crude

  concentration indices (C) for four of the most common diseases were also

  decomposed to quantify determinants of inequalities.

  RESULTS: Several diseases, such as malaria (C{*} = -0.462), goiter (C{*}

  = -0.352), kidney stone (C{*} = -0.261), and tuberculosis (C{*} =

  -0.233), were strongly concentrated among those with lower incomes,

  whereas allergic conditions (C{*} = 0.174) and migraine (01 = 0.085)

  were disproportionately reported by the better off. Inequalities were

  found to be associated with older age, low education, and residence in

  the rural Northeast and rural North of Thailand.

  CONCLUSIONS: Pro-equity health policy in Thailand and other

  middle-income countries with health surveys can now be informed by

  national data combining epidemiological, socioeconomic and health

  statistics in ways not previously possible. Ann Epidemiol 2009;

  19:800-807. (C) 2009 Elsevier Inc. All rights reserved.'
affiliation: 'Yiengprugsawan, V (Corresponding Author), Australian Natl Univ, ANU
  Coll Med Biol \& Environm, Natl Ctr Epidemiol \& Populat Hlth, Bldg 62, Canberra,
  ACT 0200, Australia.

  Yiengprugsawan, Vasoontara; Lim, Lynette L-Y.; Carmichael, Gordon A.; Sleigh, Adrian
  C., Australian Natl Univ, ANU Coll Med Biol \& Environm, Natl Ctr Epidemiol \& Populat
  Hlth, Canberra, ACT 0200, Australia.

  Seubsman, Sam-Ang, Sukhothai Thammathirat Open Univ, Thai Hlth Risk Transit Natl
  Cohort Study, Nonthaburi, Thailand.'
author: Yiengprugsawan, Vasoontara and Lim, Lynette L-Y. and Carmichael, Gordon A.
  and Seubsman, Sam-Ang and Sleigh, Adrian C.
author-email: vasoontara.yieng@anu.edu.au
author_list:
- family: Yiengprugsawan
  given: Vasoontara
- family: Lim
  given: Lynette L-Y.
- family: Carmichael
  given: Gordon A.
- family: Seubsman
  given: Sam-Ang
- family: Sleigh
  given: Adrian C.
da: '2023-09-28'
doi: 10.1016/j.annepidem.2009.04.009
eissn: 1873-2585
files: []
issn: 1047-2797
journal: ANNALS OF EPIDEMIOLOGY
keywords: 'Concentration index; Decomposition; Health inequality; Specific

  diseases; Thailand'
keywords-plus: 'SOCIOECONOMIC INEQUALITIES; UNIVERSAL COVERAGE; CHILD-MORTALITY;

  DETERMINANTS; COUNTRIES; CARE; PAYMENTS; ASIA'
language: English
month: NOV
number: '11'
number-of-cited-references: '28'
orcid-numbers: 'Yiengprugsawan, Vas Sbirakos/0000-0001-9101-4704

  sleigh, adrian/0000-0001-8443-7864

  Yiengprugsawan, Vasoontara/0000-0001-9101-4704

  Seubsman, Sam-ang/0000-0002-7451-3218'
pages: 800-807
papis_id: 6e81c9072a7dab50a8bce4fce080f376
ref: Yiengprugsawan2009trackingdecomposing
researcherid-numbers: 'Yiengprugsawan, Vas Sbirakos/G-3176-2011

  sleigh, adrian/J-4540-2019

  Yiengprugsawan, Vasoontara/N-7072-2013

  '
times-cited: '15'
title: Tracking and Decomposing Health and Disease Inequality in Thailand
type: Article
unique-id: WOS:000271217200006
usage-count-last-180-days: '0'
usage-count-since-2013: '13'
volume: '19'
web-of-science-categories: Public, Environmental \& Occupational Health
year: '2009'