[Survey on the influencing factors of malnutrition in rural children under 7 years of age in Gansu Province].

Objective: To study the status and influencing factors of malnutrition in rural children under 7 years of age in Gansu Province.

Methods: By stratified random cluster sampling, 9 390 rural children under 7 years of age from 4 counties of Gansu Province were enrolled. A cross-sectional investigation on children's nutritional status was performed.