Table 2.

Uncorrected agreement on the classification of 284 SSF’s in main categories and subcategories of the classification of substandard factors, classified by two classifier groups (CDG* and ICG^¥) separately and combined

	CDG (88 % agreement)£		ICG (80 % agreement)£		CDG and ICG (85 % agreement)£
	n§	n(%)	n§	n(%)	n§	n(%)
Main category	284	194(68)	284	189(67)	284	177(62)
Subcategory 1	140	61(44)	111	54(49)	87	15(17)
Subcategory 2	14	11(79)	14	8(57)	6	0 (0)

^£One 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

^*CDG = Classification Development Group (8 allocators)

^¥ICG = Independent Classification Group (5 allocators)

^§n = total number of substandard factors (main categories). For subcategories : only the substandard factors with 100 % uncorrected agreement in the main category were used (CDG 140/194). For subcategory 2: only the substandard factors with 100 % uncorrected agreement in main category “medical practice” and in subcategory 1 were used (CDG 14/61). The same principle was used for ICG and ICG + ICG together