Poster Topical Area: Climate/Environment, Health, Agriculture and Improved Nutrition
Poster Board Number: 3
Objective: Determine the association of farm-level agricultural biodiversity with the diversity and quality of diets of women of reproductive age in central Peru.
Methods: We conducted an in-person survey of 600 farming households with women of reproductive age in the Huánuco region of central Peru from April-June 2017. Agricultural biodiversity was calculated as a simple count of distinct crop species cultivated on farms using plot- and crop-level agricultural production data, and physical surveys of cultivated plots including georeferenced plot extents. Quantitative 24-hour recalls were administered to women using locally adapted instruments and standard protocols. A second day of recall data collected among 100 women was used to assess intra-individual variance for calculating the best linear unbiased predictor of an individual's usual intake. Probabilities of adequacy for 9 micronutrients were calculated as the probability that a woman's usual intake was above the Estimated Average Requirement for the micronutrient. The mean of these 9 probabilities of adequacy (MPA) was also calculated. A dichotomous variable indicating whether a woman consumed 5 out of 10 food groups in the previous 24 hours, the Minimum Dietary Diversity for Women (MDD-W) indicator, was also calculated using the 24-hour recall data.
Results: Findings from multiple logistic regression models, adjusting for sociodemographic and agricultural characteristics of households and individual women, indicated that farm-level crop species richness was associated with higher odds of women achieving a minimally diverse diet (MDD-W: (OR (95% CI): 1.26 (1.12, 1.41)), and a diet that met a minimum threshold for micronutrient adequacy (MPA > 60%: (OR (95% CI): 1.21 (1.10, 1.35)). Among all crop categories, cultivation of pulses demonstrated the strongest association with diet outcomes (MDD-W: OR (95% CI): 1.70 (1.28, 2.24); MPA > 60%: 1.10 (0.83, 1.45)).
Conclusions: Farms in central Peru with a larger diversity of edible crops are associated with 26% and 21% greater odds of women from those households achieving a minimally diverse and micronutrient adequate diet, respectively. These findings are consistent with the growing literature examining the relationship of agricultural biodiversity with diet outcomes.
University of Michigan
Ann Arbor, Michigan