Mean scores of the STAI-3 were 38.5 (95% CI 37.7 – 39.3) in the control group (n = 1090) and 38.7 (95% CI 37.9 – 39.5) in the intervention group (n = 1186).
Preconception counselling (PCC)
control group
Spielberger State Trait Anxiety Inventory (STAI) before PCC (STAI-1) 