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. 2021 Sep 20;52(5):767–771. [Article in Chinese] doi: 10.12182/20210960507

表 1. Null model on the prevalence of depression in CFPS participants.

研究对象抑郁症状两水平零模型

Parameter	Estimates	Standard error	P
Fixed effects (constant)	−1.232	0.073	<0.001
Random effect	－	－	－
2^nd level (province)	0.112	0.038	<0.05
1^st level (individual)	1	－	－