Effect of short-term psychological intervention on anxiety of pregnant women with positive screening results for chromosomal disorders: a randomized controlled trial

Table 3 Effect of intervention on outcomes - intention-to-treat sample

Variables	Cognitive- behavioral educations group (n = 46)		Control group (n = 46)		MD^e (CI^f 95%)	ES^g (Between)	P-value (Between groups)
Variables	Mean (SD^a)	ES^h (within)	Mean (SD^a)	ES^h (within)	MD^e (CI^f 95%)	ES^g (Between)	P-value (Between groups)
State anxiety
^bPre intervention	63.63 (6.13)	–	59.83 (7.42)	–	3.804 (0.98 to 6.62)	–	0.009
^cPost intervention	40.2 (11.05)	2	65.52 (11.12)	0.59	−27.55 (−32.03 to −23.07)	0.63	< 0.001
^dP-value (within groups)	< 0.001		< 0.001
Trait anxiety
^bPre intervention	58 (9.78)	–	56.2 (10.96)	–	1.804 (− 2.5 to 6.107)	–	0.407
^cPost intervention	37.34 (8.44)	2.018	63.81 (11.28)	0.65	−27.33 (− 30.93 to - 23.73 to)	0.72	< 0.001
^dP-value (within groups)	< 0.001		< 0.001

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