Perceived social support and diet quality among ethnic minority groups in Yunnan Province, Southwestern China: a cross-sectional study,BMC Public Health

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Perceived social support and diet quality among ethnic minority groups in Yunnan Province, Southwestern China: a cross-sectional study
BMC Public Health ( IF 3.5 ) Pub Date : 2021-09-23 , DOI: 10.1186/s12889-021-11787-5
Qiang Zhang ₁ , Yuan Ruan ₁ , Wenmin Hu ₁ , Juanjuan Li ₁ , Jiang Zhao ₁ , Min Peng ₁ , Rong Wan ₁ , Xiangdong Min ₁ , Shaomei He ₂ , Zhitao Liu ₁

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Social support is an important health determinant and may affect dietary behaviors. The purpose of this study was to examine the relations between perceived social support and the Chinese Diet Balance Index-16 (DBI-16) among ethnic minority groups in Southwest China. This cross-sectional study was conducted between May 2019 and August 2020 among six ethnic minority groups native to Yunnan Province (n = 3564). Perceived social support from family, friends and significant others were measured with the Multi-dimensional Scale of Perceived Social Support (MSPSS). Dietary data were obtained using a 100-item Food Frequency Questionnaire (FFQ) and a lifestyle questionnaire. Lower Bound Score (LBS), Higher Bound Score (HBS) and Diet Quality Distance (DQD) which represent inadequate, excessive and unbalanced food intake respectively were calculated to measure the compliance with the recommendations of the Dietary Guidelines for Chinese 2016. One thousand four hundred ninety-six men and two thousand sixty-eight women were included. 51.2% of the subjects had moderate or high levels of inadequate intake; 21.3% had moderate or high levels of excessive intake; and 74.0% had moderate or high levels of unbalanced dietary intake. With potential confounders adjusted, support from family was negatively associated with inadequate intake, while support from friends was positively associated with inadequate and excessive intake. No significant associations were found between perceived social support from significant others and diet quality indicators. An unbalanced diet is common among adults of the ethnic minority groups in Yunnan Province, Southwest China. Social support should be taken into account in designing nutrition interventions rather than focusing solely on individuals.

更新日期：2021-09-23

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