. 2018 Mar 12;18:65. doi: 10.1186/s12888-018-1647-5

Table 5.

Tetrachoric correlations between different disorders at wave 1 (age 19–29) and wave 2 (age 30–42)

		Wave 1			Wave 2
		MDD	Anxiety W1–2^a	AUD	MDD	Anxiety W1–2^a	AUD
Wave 1	MDD		0.45***	0.00	0.31**	0.38***	0.16
	Anxiety W1–2^a			0.10	0.26**	0.65***	0.02
	AUD				0.07	0.07	0.49***
Wave 2	MDD					0.54***	0.12
	Anxiety W1–2^a						0.03
	AUD

Legends: ^aPanic disorder, agoraphobia without panic, specific phobias, social phobia and/or generalized anxiety disorder (GAD)

MDD Major depressive disorder. AUD Alcohol use disorders, i.e. alcohol dependence or alcohol abuse. Standard errors were obtained from the jackknife estimator, accounting for cluster-effects among twins. **p < 0.01, ***p < 0.001. Men and women were collapsed to increase statistical power