Mean and standard deviation, or count and proportion, for demographic variables comparing those lower and higher than the medians of total n-3 PUFA or total n-6 PUFA (Chi-Squared and ANOVA p-values for comparison within fatty acid type).

Mean and standard deviation, or count and proportion, for demographic variables comparing those lower and higher than the medians of total n-3 PUFA or total n-6 PUFA (Chi-Squared and ANOVA p-values for comparison within fatty acid type).

针对总ω-3多不饱和脂肪酸（n-3 PUFA）或总ω-6多不饱和脂肪酸（n-6 PUFA）的中位数，将研究对象划分为低于与高于该中位数的两组，比较两组间的人口统计学变量；统计指标选取均值与标准差，或频数与构成比，组间比较采用卡方检验与方差分析，并给出对应检验的p值（按脂肪酸类型分别开展比较）。