Table 5.

Preference for cognitive behavioral therapy (CBT) before drug therapy versus drug therapy, and preference for internet-based CBT versus face-to-face CBT.

Questions and answers		With insomnia, using medication (n=200)		With insomnia, not using medication (n=200)		Without insomnia, (n=200)		Total (N=600)
		n (%)	Adjusted residual	n (%)	Adjusted residual	n (%)	Adjusted residual	n (%)	P valuea
Let’s assume that you received your diagnosis of insomnia from your doctor. Imagine that you were advised to participate in cognitive behavioral therapy (CBT) before drug therapy. In such a case, do you participate in CBT?
	Yes, I receive CBT	103 (51.5)	1.3	95 (47.5)	−0.1	88 (44.0)	−1.3	286 (47.7)	.32
	No. I do not receive CBT	97 (48.5)	−1.3	105 (52.5)	0.1	112 (56.0)	1.3	314 (52.3)
If you had to choose only one of the two as a treatment for insomnia, would you choose CBT or drug therapy?
	I choose CBT	81 (40.5)	−5.8b,c	128 (64.0)	2.4b,d	134 (67.0)	3.4b,c	343 (57.2)	<.001
	I choose drug therapy	119 (59.5)	5.8b,c	72 (36.0)	−2.4b, d	66 (33.0)	−3.4b,c	257 (42.8)
Other than CBT for insomnia in face-to-face sessions with a therapist, if there is a way to receive CBT via the internet and support from a therapist by email, which do you choose?
	I choose face-to-face CBT	119 (59.5)	2.3b,d	89 (44.5)	−2.9b,c	110 (53.0)	0.7	318 (53.0)	.009
	I choose CBT on the internet	81 (40.5)	−2.3b,d	111 (55.5)	2.9b,c	90 (47.0)	−0.7	282 (47.0)

^aFrom chi-square values.

^bCells with significant adjusted standardized residuals.

^cThe adjusted standardized residual is 2.58 or greater (or, alternatively, less than −2.58), its associated probability is less than 0.01.

^dThe adjusted standardized residual is 1.96 or greater (or, alternatively, less than −1.96), its associated probability is less than 0.05.