Improving the Quality of Adult Mortality Data Collected in Demographic Surveys

Validation Study of a New Siblings' Survival Questionnaire in Niakhar, Senegal

Stephane Helleringer, Gilles Pison, Bruno Masquelier, Almamy Malick Kante, Laetitia Douillot, Géraldine Duthé, Cheikh Sokhna, Valérie Delaunay

Research output: Contribution to journalArticle

Abstract

Background:In countries with limited vital registration, adult mortality is frequently estimated using siblings' survival histories (SSHs) collected during Demographic and Health Surveys (DHS). These data are affected by reporting errors. We developed a new SSH questionnaire, the siblings' survival calendar (SSC). It incorporates supplementary interviewing techniques to limit omissions of siblings and uses an event history calendar to improve reports of dates and ages. We hypothesized that the SSC would improve the quality of adult mortality data.Methods and Findings:We conducted a retrospective validation study among the population of the Niakhar Health and Demographic Surveillance System in Senegal. We randomly assigned men and women aged 15-59 y to an interview with either the DHS questionnaire or the SSC. We compared SSHs collected in each group to prospective data on adult mortality collected in Niakhar. The SSC reduced respondents' tendency to round reports of dates and ages to the nearest multiple of five or ten ("heaping"). The SSC also had higher sensitivity in recording adult female deaths: among respondents whose sister(s) had died at an adult age in the past 15 y, 89.6% reported an adult female death during SSC interviews versus 75.6% in DHS interviews (p = 0.027). The specificity of the SSC was similar to that of the DHS questionnaire, i.e., it did not increase the number of false reports of deaths. However, the SSC did not improve the reporting of adult deaths among the brothers of respondents. Study limitations include sample selectivity, limited external validity, and multiple testing.Conclusions:The SSC has the potential to collect more accurate SSHs than the questionnaire used in DHS. Further research is needed to assess the effects of the SSC on estimates of adult mortality rates. Additional validation studies should be conducted in different social and epidemiological settings.

Original languageEnglish (US)
Article numbere1001652
JournalPLoS Medicine
Volume11
Issue number5
DOIs
StatePublished - 2014
Externally publishedYes

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Senegal
Validation Studies
Siblings
Demography
Survival
Mortality
Surveys and Questionnaires
Interviews
Calendars

ASJC Scopus subject areas

  • Medicine(all)

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Improving the Quality of Adult Mortality Data Collected in Demographic Surveys : Validation Study of a New Siblings' Survival Questionnaire in Niakhar, Senegal. / Helleringer, Stephane; Pison, Gilles; Masquelier, Bruno; Kante, Almamy Malick; Douillot, Laetitia; Duthé, Géraldine; Sokhna, Cheikh; Delaunay, Valérie.

In: PLoS Medicine, Vol. 11, No. 5, e1001652, 2014.

Research output: Contribution to journalArticle

Helleringer, Stephane ; Pison, Gilles ; Masquelier, Bruno ; Kante, Almamy Malick ; Douillot, Laetitia ; Duthé, Géraldine ; Sokhna, Cheikh ; Delaunay, Valérie. / Improving the Quality of Adult Mortality Data Collected in Demographic Surveys : Validation Study of a New Siblings' Survival Questionnaire in Niakhar, Senegal. In: PLoS Medicine. 2014 ; Vol. 11, No. 5.
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T1 - Improving the Quality of Adult Mortality Data Collected in Demographic Surveys

T2 - Validation Study of a New Siblings' Survival Questionnaire in Niakhar, Senegal

AU - Helleringer, Stephane

AU - Pison, Gilles

AU - Masquelier, Bruno

AU - Kante, Almamy Malick

AU - Douillot, Laetitia

AU - Duthé, Géraldine

AU - Sokhna, Cheikh

AU - Delaunay, Valérie

PY - 2014

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N2 - Background:In countries with limited vital registration, adult mortality is frequently estimated using siblings' survival histories (SSHs) collected during Demographic and Health Surveys (DHS). These data are affected by reporting errors. We developed a new SSH questionnaire, the siblings' survival calendar (SSC). It incorporates supplementary interviewing techniques to limit omissions of siblings and uses an event history calendar to improve reports of dates and ages. We hypothesized that the SSC would improve the quality of adult mortality data.Methods and Findings:We conducted a retrospective validation study among the population of the Niakhar Health and Demographic Surveillance System in Senegal. We randomly assigned men and women aged 15-59 y to an interview with either the DHS questionnaire or the SSC. We compared SSHs collected in each group to prospective data on adult mortality collected in Niakhar. The SSC reduced respondents' tendency to round reports of dates and ages to the nearest multiple of five or ten ("heaping"). The SSC also had higher sensitivity in recording adult female deaths: among respondents whose sister(s) had died at an adult age in the past 15 y, 89.6% reported an adult female death during SSC interviews versus 75.6% in DHS interviews (p = 0.027). The specificity of the SSC was similar to that of the DHS questionnaire, i.e., it did not increase the number of false reports of deaths. However, the SSC did not improve the reporting of adult deaths among the brothers of respondents. Study limitations include sample selectivity, limited external validity, and multiple testing.Conclusions:The SSC has the potential to collect more accurate SSHs than the questionnaire used in DHS. Further research is needed to assess the effects of the SSC on estimates of adult mortality rates. Additional validation studies should be conducted in different social and epidemiological settings.

AB - Background:In countries with limited vital registration, adult mortality is frequently estimated using siblings' survival histories (SSHs) collected during Demographic and Health Surveys (DHS). These data are affected by reporting errors. We developed a new SSH questionnaire, the siblings' survival calendar (SSC). It incorporates supplementary interviewing techniques to limit omissions of siblings and uses an event history calendar to improve reports of dates and ages. We hypothesized that the SSC would improve the quality of adult mortality data.Methods and Findings:We conducted a retrospective validation study among the population of the Niakhar Health and Demographic Surveillance System in Senegal. We randomly assigned men and women aged 15-59 y to an interview with either the DHS questionnaire or the SSC. We compared SSHs collected in each group to prospective data on adult mortality collected in Niakhar. The SSC reduced respondents' tendency to round reports of dates and ages to the nearest multiple of five or ten ("heaping"). The SSC also had higher sensitivity in recording adult female deaths: among respondents whose sister(s) had died at an adult age in the past 15 y, 89.6% reported an adult female death during SSC interviews versus 75.6% in DHS interviews (p = 0.027). The specificity of the SSC was similar to that of the DHS questionnaire, i.e., it did not increase the number of false reports of deaths. However, the SSC did not improve the reporting of adult deaths among the brothers of respondents. Study limitations include sample selectivity, limited external validity, and multiple testing.Conclusions:The SSC has the potential to collect more accurate SSHs than the questionnaire used in DHS. Further research is needed to assess the effects of the SSC on estimates of adult mortality rates. Additional validation studies should be conducted in different social and epidemiological settings.

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