Fig. 2

The association between quartile of relative handgrip strength and risk of depressive symptoms for age group using logistic regression

Adjusted for age, sex, household income, alcohol consumption, smoking, body mass index, and physical activity.

Abbreviations: Q, quartile. Quartile: All participants: Quartile 1 (right: < 0.994; left: < 0.939), Quartile 2 (right: ≥0.994, < 1.259; left: ≥0.994, < 1.191), Quartile 3 (right: ≥1.259, < 1.598; left: ≥1.191, < 1.522), Quartile 4 (right: ≥1.598; left: ≥1.522). Quartile: young adults: Quartile 1 (right: < 1.117; left: < 1.049), Quartile 2 (right: ≥1.117, < 1.368; left: ≥1.049, < 1.286), Quartile 3 (right: ≥1.368, < 1.739; left: ≥1.286, < 1.647), Quartile 4 (right: ≥1.739; left: ≥1.647). Quartile: middle aged adults: Quartile 1 (right: < 1.063; left: < 0.996), Quartile 2 (right: ≥1.063, < 1.288; left: ≥0.996, < 1.232), Quartile 3 (right: ≥1.288, < 1.649; left: ≥1.232, < 1.571), Quartile 4 (right: ≥1.649; left: ≥1.571). Quartile: elderly: Quartile 1 (right: < 0.823; left: < 0.774), Quartile 2 (right: ≥0.823, < 1.088; left: ≥0.774, < 1.023), Quartile 3 (right: ≥1.088, < 1.422; left: ≥1.023, < 1.362), Quartile 4 (right: ≥1.422; left: ≥1.362)