Table 1.

Test-retest reliability assessment of 14 important questions (N=30 caregivers)

Level of agreement of specific questions	Percent exact agreement	Kappa value	95% CI
Excellent agreement (Kappa 0.81-1.00)
Q34 Pregnancy: smoking during pregnancy n=27	100%	1.00	1.00 to 1.00
Q38 Pregnancy: alcohol use during pregnancy n=27	100%	1.00	1.00 to 1.00
Q42 Pregnancy: number of drinks on a typical day n=25	96%	0.99*	0.97 to 1.00
Q43 Pregnancy: frequency of drinking alcohol n=24	83%	0.98 *	0.96 to 1.00
Q66 Child: development behind children of same age n=30	90%	0.81	0.60 to 1.00
Substantial agreement (Kappa 0.61-0.80)
Q37 Pre-pregnancy: alcohol use before pregnancy n=27	89%	0.76	0.52 to 1.00
Q32d Pregnancy: infections during pregnancy n=27	89%	0.75	0.48 to 1.00
Q67 Child: areas of developmental delay n=28	82%	0.74	0.56 to 0.92
Q39 Pregnancy: trimester alcohol consumed n=27	81%	0.73	0.54 to 0.91
Q58 Child: specifics of medical problems requiring care in question 57 n=23	87%	0.72	0.49 to 0.94
Moderate agreement (Kappa 0.41-0.60)
Q32e Pregnancy: hospital admissions during pregnancy n=27	81%	0.60	0.30 to 0.89
Q57 Child: long term medical problems requiring care n=30	77%	0.55	0.31 to 0.79
Fair agreement (Kappa 0.21-0.40)
Q32 Pregnancy: medical problems during pregnancy n=27	59%	0.39	0.16 to 0.63
Slight agreement (Kappa 0.00-0.20)
Q23 Child: learning or behavioral support in school n=30	73%	0.03	-0.14 to 0.20

n= number of respondents to each question *For Q42 and Q43 a quadratic weighted Kappa was used.