Table II.

Logistic regression of the association between literacy skills and sub-optimal self-reported health in Denmark before and after controlling for sex, age and educational level.

	Variable	Odds ratio (95% confidence interval)
		Model 1	Model 2
Literacy	Level ⩽ 1	6.28 (4.25–9.28)	2.90 (1.91–4.42)
	Level 2	2.94 (2.01–4.31)	1.70 (1.14–2.53)
	Level 3	1.48 (1.00–2.18)	1.11 (0.75–1.65)
	Level 4/5	1 (reference)	1 (reference)
Sex	Female		1.19 (1.03–1.39)
	Male		1 (reference)
Age (years)	16–24		0.23 (0.17–0.30)
	25–34		0.48 (0.37–0.63)
	35–44		0.71 (0.58–0.88)
	45–54		0.85 (0.71–1.02)
	55–65		1 (reference)
Educational level	Low		2.90 (2.28–3.70)
	Medium		1.66 (1.38–2.01)
	High		1 (reference)