Table 3

State-trait anxiety inventory results (STAI)

OutcomeMRI (n=206)*Ultrasound (n=217)*p Value
Primary outcome
Maternal state STAI at baseline (95% CI)36.81
(35.18 to 38.44)
37.59
(36.00 to 39.18)
0.02
Maternal state STAI at 14 days (95% CI)32.77
(31.54 to 34.01)
33.97
(32.78 to 35.17)
Maternal state STAI at 12 months (95% CI)31.87 
(30.63 to 33.12)
3.43
(32.22 to 34.63)
Maternal state STAI at 18–24 months corrected age (95% CI)31.82 
(30.65 to 33.00)
33.63
(32.49 to 34.77)
Secondary outcomes
Maternal trait STAI at baseline (95% CI)37.02
(35.64 to 38.39)
38.22
(36.86 to 39.58)
0.56
Maternal trait STAI at 14 days (95% CI)35.15
(34.03 to 36.27)
34.77 
(33.70 to 35.84)
Maternal trait STAI at 12 months (95% CI)34.97
(33.83 to 36.10)
35.38 
(34.29 to 36.47)
Maternal trait STAI at 18–24 months corrected age (95% CI)34.70
(33.64 to 35.77)
35.77
(34.74 to 36.81)
Paternal state STAIMRI (n=168)†Ultrasound (n=176)†
Paternal state STAI at baseline (95% CI)34.47
(32.75 to 36.19)
35.19 
(33.50 to 36.89)
0.78
Paternal state STAI at 14 days (95% CI)32.43 
(31.04 to 33.83)
32.76
(31.43 to 34.10)
Paternal state STAI at 12 months (95% CI)30.45
(29.01 to 31.88)
31.29 
(29.93 to 32.64)
Paternal state STAI at 18–24 months corrected age (95% CI)31.92 
(30.55 to 33.29)
31.38
(30.06 to 32.70)
Paternal trait STAIMRI (n=168)‡Ultrasound (n=178)‡
Paternal trait STAI at baseline (95% CI)34.54 
(33.12 to 35.95)
35.24 
(33.78 to 36.71)
0.82
Paternal trait STAI at 14 days (95% CI)33.15 
(31.93 to 34.36)
33.15 
(32.00 to 34.31)
Paternal trait STAI at 12 months (95% CI)32.10 
(30.85 to 33.35)
33.13 
(31.95 to 34.31)
Paternal trait STAI at 18–24 months corrected age (95% CI)33.43 
(32.23 to 34.63)
32.86 
(31.72 to 34.01)
  • *Number of mothers with primary and secondary outcome data (STAI) in each group (MRI and ultrasound) at baseline, 14 days, 12 months and 18–24 months corrected age,

  • †Number of fathers with secondary outcome data (state STAI) in each group (MRI and ultrasound) at baseline, 14 days, 12 months and 18–24 months corrected age.

  • ‡Number of fathers with secondary outcome data (trait STAI) in each group (MRI and ultrasound) at baseline, 14 days, 12 months and 18–24 months corrected age.