Figure Legends
Figure 1. Visualization of the dose-response relationship between chronotype and depressive symptoms based on restricted cubic splines. Abbreviations: OR, Odds ratio; CI, confidence interval. Covariates adjusted in the models were the same as those in model 4 inTable 2 (see Table 2 footnote).
Figure 2. Stratified analysis on the association between chronotype and odds of depressive symptoms. Abbreviations: OR, Odds ratio. Covariates adjusted in the models were the same as those in model 4 in Table 2 (see Table 2 footnote).
Figure S1. Flow chart of selection of participants in the analysis.
Figure S2. Directed acyclic graph for confounder selection
Figure S3. Actor–Partner Interdependence Model of chronotype and depressive symptoms in infertile couples.
Note: Am: actor effect of female’s chronotype on her own depressive symptoms; Af: actor effect of male’s chronotype on his own depressive symptoms; Pfm: partner effect of female’s chronotype on male’s depressive symptoms; Pmf: partner effect of male’s chronotype on female’s depressive symptoms; Em and Ef: residual errors on depressive symptoms for female and male, respectively.