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Mean and 95% confidence interval of Impact of Events Scale (IES) subscale intrusion among women by category of prognostic ambiguity: high prognostic ambiguity (n = 46) vs low prognostic ambiguity (n = 35). T1 = gestational age 18–28 weeks (n = 81); T2 = 2–3 weeks after T1 (n = 69); T3 = gestational age 30 weeks (n = 53); T4 = gestational age 36 weeks (n = 63); T5 = 6 weeks postpartum (n = 68)
