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Households across all income quintiles, especially the poorest, increased animal source food expenditures substantially during recent Peruvian economic growth.

Humphries DL, Behrman JR, Crookston BT, Dearden KA, Schott W, Penny ME, Young Lives Determinants and Consequences of Child Growth Project Te - PLoS ONE (2014)

Bottom Line: Multivariate models with controls for unobserved household fixed effects and common secular trends were used to examine nonlinear relationships between changes in household expenditures and in ASF expenditures.Households in the lowest quintiles of expenditures showed greater increases in ASF expenditures relative to total consumption than households in the highest quintiles.Increases in ASF expenditures for all but the top quintile of households were proportionately greater than increases in total food expenditures, and proportionately less than overall expenditures.

View Article: PubMed Central - PubMed

Affiliation: Department of Epidemiology of Microbial Disease, Yale School of Public Health, New Haven, Connecticut, United States of America.

ABSTRACT

Background: Relative to plant-based foods, animal source foods (ASFs) are richer in accessible protein, iron, zinc, calcium, vitamin B-12 and other nutrients. Because of their nutritional value, particularly for childhood growth and nutrition, it is important to identify factors influencing ASF consumption, especially for poorer households that generally consume less ASFs.

Objective: To estimate differential responsiveness of ASF consumption to changes in total household expenditures for households with different expenditures in a middle-income country with substantial recent income increases.

Methods: The Peruvian Young Lives household panel (n = 1750) from 2002, 2006 and 2009 was used to characterize patterns of ASF expenditures. Multivariate models with controls for unobserved household fixed effects and common secular trends were used to examine nonlinear relationships between changes in household expenditures and in ASF expenditures.

Results: Households with lower total expenditures dedicated greater percentages of expenditures to food (58.4% vs.17.9% in 2002 and 24.2% vs. 21.5% in 2009 for lowest and highest quintiles respectively) and lower percentages of food expenditures to ASF (22.8% vs. 33.9% in 2002 and 30.3% vs. 37.6% in 2009 for lowest and highest quintiles respectively). Average percentages of overall expenditures spent on food dropped from 47% to 23.2% between 2002 and 2009. Households in the lowest quintiles of expenditures showed greater increases in ASF expenditures relative to total consumption than households in the highest quintiles. Among ASF components, meat and poultry expenditures increased more than proportionately for households in the lowest quintiles, and eggs and fish expenditures increased less than proportionately for all households.

Conclusions: Increases in household expenditures were associated with substantial increases in consumption of ASFs for households, particularly households with lower total expenditures. Increases in ASF expenditures for all but the top quintile of households were proportionately greater than increases in total food expenditures, and proportionately less than overall expenditures.

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Related in: MedlinePlus

Elasticities of ASF components with reference to total ASF expenditures.Elasticities for individual ASF component expenditures are constrained to be consistent with elasticity for total ASF expenditures. (a) From 2002–2006 elasticities are not significantly different from 1 for meat below the 10th percentile, for poultry above the 15th percentile, for dairy between the 15th and 75th percentiles, and for fish >70th percentile. Elasticities with respect to total ASF expenditures are always significantly different from 1 for eggs. (b) From 2006–2009 elasticities are not significantly different from 1 for fish between the 10th and 25th percentiles. Elasticities with respect to total ASF expenditures are always significantly different from 1 for meat, poultry, dairy and eggs.
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pone-0110961-g004: Elasticities of ASF components with reference to total ASF expenditures.Elasticities for individual ASF component expenditures are constrained to be consistent with elasticity for total ASF expenditures. (a) From 2002–2006 elasticities are not significantly different from 1 for meat below the 10th percentile, for poultry above the 15th percentile, for dairy between the 15th and 75th percentiles, and for fish >70th percentile. Elasticities with respect to total ASF expenditures are always significantly different from 1 for eggs. (b) From 2006–2009 elasticities are not significantly different from 1 for fish between the 10th and 25th percentiles. Elasticities with respect to total ASF expenditures are always significantly different from 1 for meat, poultry, dairy and eggs.

Mentions: Table 4 and Figure 4 give the elasticities for the types of ASF expenditures with respect to total ASF expenditures. In both 2002–2006 and 2006–2009, meat and fish expenditures have increasing elasticities at higher total ASF expenditures, while poultry and dairy expenditure have decreasing elasticities at higher total ASF expenditures. Eggs show a decrease across the percentiles of total ASF expenditures in 2002–2006 and an increase across the percentiles in 2006–2009. In 2002–2006 the elasticities for the components of ASF expenditures with respect to total ASF expenditures are not significantly different from 1 for meat below the 10th percentile, poultry above the 10th percentile, dairy between the 15th and the 75th percentiles, and for fish above the 70th percentile. In 2006–2009 elasticities are significantly different from 1 for all components except fish at and above the 90th percentile. Aside from these exceptions, the shares of the ASF component expenditures in total ASF expenditures change differentially over the distribution of the total ASF expenditures. Expenditures on eggs and fish over the entire range of total ASF expenditures in both time periods, and dairy in 2006–2009, increase proportionately less than total ASF expenditures as total ASF expenditures increase. Expenditures on meat in both time periods increase by larger percentages as total ASF expenditures increase.


Households across all income quintiles, especially the poorest, increased animal source food expenditures substantially during recent Peruvian economic growth.

Humphries DL, Behrman JR, Crookston BT, Dearden KA, Schott W, Penny ME, Young Lives Determinants and Consequences of Child Growth Project Te - PLoS ONE (2014)

Elasticities of ASF components with reference to total ASF expenditures.Elasticities for individual ASF component expenditures are constrained to be consistent with elasticity for total ASF expenditures. (a) From 2002–2006 elasticities are not significantly different from 1 for meat below the 10th percentile, for poultry above the 15th percentile, for dairy between the 15th and 75th percentiles, and for fish >70th percentile. Elasticities with respect to total ASF expenditures are always significantly different from 1 for eggs. (b) From 2006–2009 elasticities are not significantly different from 1 for fish between the 10th and 25th percentiles. Elasticities with respect to total ASF expenditures are always significantly different from 1 for meat, poultry, dairy and eggs.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4220962&req=5

pone-0110961-g004: Elasticities of ASF components with reference to total ASF expenditures.Elasticities for individual ASF component expenditures are constrained to be consistent with elasticity for total ASF expenditures. (a) From 2002–2006 elasticities are not significantly different from 1 for meat below the 10th percentile, for poultry above the 15th percentile, for dairy between the 15th and 75th percentiles, and for fish >70th percentile. Elasticities with respect to total ASF expenditures are always significantly different from 1 for eggs. (b) From 2006–2009 elasticities are not significantly different from 1 for fish between the 10th and 25th percentiles. Elasticities with respect to total ASF expenditures are always significantly different from 1 for meat, poultry, dairy and eggs.
Mentions: Table 4 and Figure 4 give the elasticities for the types of ASF expenditures with respect to total ASF expenditures. In both 2002–2006 and 2006–2009, meat and fish expenditures have increasing elasticities at higher total ASF expenditures, while poultry and dairy expenditure have decreasing elasticities at higher total ASF expenditures. Eggs show a decrease across the percentiles of total ASF expenditures in 2002–2006 and an increase across the percentiles in 2006–2009. In 2002–2006 the elasticities for the components of ASF expenditures with respect to total ASF expenditures are not significantly different from 1 for meat below the 10th percentile, poultry above the 10th percentile, dairy between the 15th and the 75th percentiles, and for fish above the 70th percentile. In 2006–2009 elasticities are significantly different from 1 for all components except fish at and above the 90th percentile. Aside from these exceptions, the shares of the ASF component expenditures in total ASF expenditures change differentially over the distribution of the total ASF expenditures. Expenditures on eggs and fish over the entire range of total ASF expenditures in both time periods, and dairy in 2006–2009, increase proportionately less than total ASF expenditures as total ASF expenditures increase. Expenditures on meat in both time periods increase by larger percentages as total ASF expenditures increase.

Bottom Line: Multivariate models with controls for unobserved household fixed effects and common secular trends were used to examine nonlinear relationships between changes in household expenditures and in ASF expenditures.Households in the lowest quintiles of expenditures showed greater increases in ASF expenditures relative to total consumption than households in the highest quintiles.Increases in ASF expenditures for all but the top quintile of households were proportionately greater than increases in total food expenditures, and proportionately less than overall expenditures.

View Article: PubMed Central - PubMed

Affiliation: Department of Epidemiology of Microbial Disease, Yale School of Public Health, New Haven, Connecticut, United States of America.

ABSTRACT

Background: Relative to plant-based foods, animal source foods (ASFs) are richer in accessible protein, iron, zinc, calcium, vitamin B-12 and other nutrients. Because of their nutritional value, particularly for childhood growth and nutrition, it is important to identify factors influencing ASF consumption, especially for poorer households that generally consume less ASFs.

Objective: To estimate differential responsiveness of ASF consumption to changes in total household expenditures for households with different expenditures in a middle-income country with substantial recent income increases.

Methods: The Peruvian Young Lives household panel (n = 1750) from 2002, 2006 and 2009 was used to characterize patterns of ASF expenditures. Multivariate models with controls for unobserved household fixed effects and common secular trends were used to examine nonlinear relationships between changes in household expenditures and in ASF expenditures.

Results: Households with lower total expenditures dedicated greater percentages of expenditures to food (58.4% vs.17.9% in 2002 and 24.2% vs. 21.5% in 2009 for lowest and highest quintiles respectively) and lower percentages of food expenditures to ASF (22.8% vs. 33.9% in 2002 and 30.3% vs. 37.6% in 2009 for lowest and highest quintiles respectively). Average percentages of overall expenditures spent on food dropped from 47% to 23.2% between 2002 and 2009. Households in the lowest quintiles of expenditures showed greater increases in ASF expenditures relative to total consumption than households in the highest quintiles. Among ASF components, meat and poultry expenditures increased more than proportionately for households in the lowest quintiles, and eggs and fish expenditures increased less than proportionately for all households.

Conclusions: Increases in household expenditures were associated with substantial increases in consumption of ASFs for households, particularly households with lower total expenditures. Increases in ASF expenditures for all but the top quintile of households were proportionately greater than increases in total food expenditures, and proportionately less than overall expenditures.

Show MeSH
Related in: MedlinePlus