Classification of substandard factors in perinatal care: development and multidisciplinary inter-rater agreement of the Groningen-system

Table 3 Uncorrected agreement on the classification of 284 substandard factors classified by two classifier groups (CDG^a and ICG^b) separately and combined, divided over the main categories of the classification of substandard factors

	CDG 86 % agreement^c		ICG 80 % agreement^c		CDG and ICG 85 % agreement^c
	n	(%)	n	(%)	n	(%)
Equipment and Materials	1	(1)	1	(1)	1	(1)
Medication					-	-
Additional tests/investigations	13	(7)	7	(4)	6	(3)
Transportation	3	(2)	2	(1)	2	(1)
Documentation	87	(45)	86	(46)	85	(48)
Communication	15	(8)	13	(7)	13	(7)
Medical Practice	75	(39)	79	(42)	70	(40)
Other	-				-	-
Non Classifiable	-		1	(1)	-	-
Total	194	(100)	189	(100)	177	(100)

^aCDG = Classification Development Group
^bICG = Independent Classification Group
^cOne disagreement on allocation per group acceptable, i.e. CDG 7 out of 8, ICG 4 out of 5. Two disagreements on allocation in CDG and ICG together acceptable, i.e. 11 out of 13

ISSN: 1471-2393