Development of a dichotomous indicator for population-level assessment of the dietary diversity of women of reproductive age
Background: Dietary diversity is a key element of diet quality but diets of women of reproductive age (WRA; 15-49 y) in resource-poor settings are often deficient in a range of micronutrients. Previous work demonstrated relationships between simple food group diversity indicators (FGI) and micronutr...
| Main Authors: | , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Elsevier
2017
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| Online Access: | https://hdl.handle.net/10568/90591 |
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| author | Martin Prével, Y. Arimond, M. Allemand, P. Wiesmann, D. Ballard, T.J. Deitchler, M. Dop, M.C. Kennedy, G. Lartey, A. Lee, W.T.K. Moursi, Mourad |
| author_browse | Allemand, P. Arimond, M. Ballard, T.J. Deitchler, M. Dop, M.C. Kennedy, G. Lartey, A. Lee, W.T.K. Martin Prével, Y. Moursi, Mourad Wiesmann, D. |
| author_facet | Martin Prével, Y. Arimond, M. Allemand, P. Wiesmann, D. Ballard, T.J. Deitchler, M. Dop, M.C. Kennedy, G. Lartey, A. Lee, W.T.K. Moursi, Mourad |
| author_sort | Martin Prével, Y. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Background: Dietary diversity is a key element of diet quality but diets of women of reproductive age (WRA; 15-49 y) in resource-poor settings are often deficient in a range of micronutrients. Previous work demonstrated relationships between simple food group diversity indicators (FGI) and micronutrient adequacy among WRA. For operational and advocacy purposes, however, there is strong demand for a dichotomous indicator reflecting an acceptable level of dietary diversity. Objective: To develop a dichotomous indicator of dietary diversity among WRA. Methods: We performed a secondary analysis of 9 data sets containing quantitative dietary data from WRA in resource-poor settings (N total = 4,166). From the raw dietary data we calculated an individual "mean probability of adequacy" (MPA) across 11 micronutrients. Several candidate FGI were constructed. Indicator performance in predicting MPA > 0.60 was assessed within each data set using receiver-operating characteristics (ROC) analysis and sensitivity/specificity analysis at various FGI cut-offs. The analysis was performed separately for non-pregnant and non-lactating (NPNL) and for lactating women. Results: We identified 2 "best candidate" dichotomous indicators based on 9- or 10-point food group scores (FGI-9 and FGI-10) with a cut-off of 5 food groups or more. Both were significantly correlated to MPA in each site (P < 0.001). Areas under the curve (AUC) were moderate, ranging from 0.62 to 0.82 among NPNL women and from 0.56 to 0.90 among lactating women. Comparisons of results slightly favored FGI-10 for all women. Conclusions: When resource-intensive dietary methods are not feasible, a simple dichotomous indicator based on a cut-off of >5 of 10 defined food groups reflects "Minimum dietary diversity for women of reproductive age" (MDD-W). According to the conclusions of a consensus meeting of experts, this indicator is well suited for population-level assessment, advocacy, and maybe also for tracking of change in dietary diversity across time. |
| format | Journal Article |
| id | CGSpace90591 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace905912025-11-12T05:40:53Z Development of a dichotomous indicator for population-level assessment of the dietary diversity of women of reproductive age Martin Prével, Y. Arimond, M. Allemand, P. Wiesmann, D. Ballard, T.J. Deitchler, M. Dop, M.C. Kennedy, G. Lartey, A. Lee, W.T.K. Moursi, Mourad epidemiology diet assessment nutrition developing countries diversification indicators Background: Dietary diversity is a key element of diet quality but diets of women of reproductive age (WRA; 15-49 y) in resource-poor settings are often deficient in a range of micronutrients. Previous work demonstrated relationships between simple food group diversity indicators (FGI) and micronutrient adequacy among WRA. For operational and advocacy purposes, however, there is strong demand for a dichotomous indicator reflecting an acceptable level of dietary diversity. Objective: To develop a dichotomous indicator of dietary diversity among WRA. Methods: We performed a secondary analysis of 9 data sets containing quantitative dietary data from WRA in resource-poor settings (N total = 4,166). From the raw dietary data we calculated an individual "mean probability of adequacy" (MPA) across 11 micronutrients. Several candidate FGI were constructed. Indicator performance in predicting MPA > 0.60 was assessed within each data set using receiver-operating characteristics (ROC) analysis and sensitivity/specificity analysis at various FGI cut-offs. The analysis was performed separately for non-pregnant and non-lactating (NPNL) and for lactating women. Results: We identified 2 "best candidate" dichotomous indicators based on 9- or 10-point food group scores (FGI-9 and FGI-10) with a cut-off of 5 food groups or more. Both were significantly correlated to MPA in each site (P < 0.001). Areas under the curve (AUC) were moderate, ranging from 0.62 to 0.82 among NPNL women and from 0.56 to 0.90 among lactating women. Comparisons of results slightly favored FGI-10 for all women. Conclusions: When resource-intensive dietary methods are not feasible, a simple dichotomous indicator based on a cut-off of >5 of 10 defined food groups reflects "Minimum dietary diversity for women of reproductive age" (MDD-W). According to the conclusions of a consensus meeting of experts, this indicator is well suited for population-level assessment, advocacy, and maybe also for tracking of change in dietary diversity across time. 2017-12 2018-01-26T11:28:59Z 2018-01-26T11:28:59Z Journal Article https://hdl.handle.net/10568/90591 en Open Access application/pdf Elsevier Martin-Prevel, Y.; Arimond, M.; Allemand, P.; Wiesmann, D.; Ballard, T.J.; Deitchler, M.; Dop, M.C.; Kennedy, G.; Lartey, A.; Lee, W.T.K.; Moursi, M. (2017) Development of a dichotomous indicator for population-level assessment of the dietary diversity of women of reproductive age. Current Developments in Nutrition 1(12) cdn.117.001701. ISSN: 2475-2991 |
| spellingShingle | epidemiology diet assessment nutrition developing countries diversification indicators Martin Prével, Y. Arimond, M. Allemand, P. Wiesmann, D. Ballard, T.J. Deitchler, M. Dop, M.C. Kennedy, G. Lartey, A. Lee, W.T.K. Moursi, Mourad Development of a dichotomous indicator for population-level assessment of the dietary diversity of women of reproductive age |
| title | Development of a dichotomous indicator for population-level assessment of the dietary diversity of women of reproductive age |
| title_full | Development of a dichotomous indicator for population-level assessment of the dietary diversity of women of reproductive age |
| title_fullStr | Development of a dichotomous indicator for population-level assessment of the dietary diversity of women of reproductive age |
| title_full_unstemmed | Development of a dichotomous indicator for population-level assessment of the dietary diversity of women of reproductive age |
| title_short | Development of a dichotomous indicator for population-level assessment of the dietary diversity of women of reproductive age |
| title_sort | development of a dichotomous indicator for population level assessment of the dietary diversity of women of reproductive age |
| topic | epidemiology diet assessment nutrition developing countries diversification indicators |
| url | https://hdl.handle.net/10568/90591 |
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