Table 2.

AUC, Nagelkerke R² and p value in the prediction of any morbidity (anxiety, depression or post-traumatic stress) for each potential prognostic factor, displayed in order of decreasing AUC

Predictor	AUC (95% CI)	R2	P value
Psychiatric disorder (no, in past, currently)	0.61 (0.55 to 0.66)	0.084	<0.0001
Any previous pregnancy loss (no=0; yes=1)	0.59 (0.54 to 0.64)	0.043	<0.0001
Ethnicity (white British/white other/black/Asian/other)	0.57 (0.52 to 0.63)	0.024	0.07
Time to conceive (unknown/≤1 year/>1 year)	0.56 (0.51 0.61)	0.022	0.02
Final diagnosis (miscarriage, ectopic, other)	0.54 (0.48 to 0.59)	0.009	0.19
Final management (surgical, medical, conservative)	0.54 (0.49 to 0.59)	0.008	0.23
Fetal heart (no=0; yes=1) (miscarriage only)	0.53 (0.47 to 0.59)	0.008	0.34
Age (in years)	0.53 (0.47 to 0.58)	0.001	0.53
Educational attainment (none; GCSE; A-level; university; postgraduate degree)	0.52 (0.47 to 0.57)	0.003	0.89
Overnight admission (no=0; yes=1)	0.52 (0.47 to 0.57)	0.003	0.29
Previous termination (no=0; yes=1)	0.52 (0.47 to 0.57)	0.002	0.37
Previous children (no=0; yes=1)	0.52 (0.47 to 0.57)	0.002	0.39
Days to diagnosis from first scan (days)	0.51 (0.46 to 0.57)	0.000	0.95
IVF (no=0; yes=1)	0.50 (0.45 to 0.56)	0.000	0.70
Gestational age (days)	0.50 (0.44 to 0.56)	0.000	0.89

AUC, area under curve; GCSE, General Certificate of Secondary Education; IVF, in vitro fertilisation.