Skip to main content

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

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

Variables Cognitive- behavioral educations group (n = 46) Control group (n = 46) MDe (CIf 95%) ESg (Between) P-value (Between groups)
Mean (SDa) ESh (within) Mean (SDa) ESh (within)
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  
  1. aStandard Deviation
  2. bIndependent-samples t-test
  3. cANCOVA
  4. dPaired-sample T Test
  5. eMean Difference
  6. fConfidence Interval
  7. gEffect size (ES) based on partial eta square
  8. hEffect sizes based on Cohen’s d