Table 5. Number of reabstractions carried out, number of disagreements and agreement in % for each data variable.

Data variable	No. re-abstracted	Disagreements		Total disagreements	Total agreements	Agreement (%)
		Minor	Major
Demographic details
Name	99	0	0	0	99	100.0
Sex	101	0	0	0	101	100.0
Date of birth	101	0	15	15	86	85.2
Taluka code	97	0	6	6	91	93.8
Accuracy (%) for demographic details: 94.7%
Tumour details
Incidence date	68	6	4	10	58	85.3
Basis of diagnosis	97	0	8	8	89	91.8
Topography code	101	17	11	28	73	72.3
Morphology code	101	2	6	8	93	92.1
Behaviour	90	0	1	1	89	98.9
Grade	100	0	17	17	83	83.0
Accuracy (%) for tumour details: 88%
Overall accuracy rate: 91.1%