Fig. 4

Dietary characteristics of the four identified clusters. Whisker-box plot with boxes indicating the median and 25th and 75th percentiles and whiskers indicating the 10th and 90th percentiles. “+” indicates the mean. The shadow indicates the Chinese dietary reference intakes (a–e) or the interquartile range of cluster 3 (f). *P < 0.05. GL glycemic load, MAR micronutrient adequacy ratio