Table 1.

Concordance of key variables from TB Patient Card, TB Facility Register, and Treatment Information from Basic Unit (TIBU), κ coefficient^*

		Concordance with TB Patient Card (n = 152)		Concordance with TB Facility Register (n = 222)
Category	Variable	TB Facility Register	TIBU	TIBU
Demographic	District registration number	0.81	0.26	0.27
	Age	0.95	0.91	0.96
	Sex	0.93	0.91	0.97
Clinical	Registration date	-	-	0.21
	Type of tuberculosis	0.83	0.86	0.95
	Type of patient	0.58	0.60	0.76
	HIV status	0.64	0.57	0.79
	ART	0.57	0.54	0.85
	CPT	0.75	0.75	0.94
Bacteriology	Sputum at 0 months	0.77	0.66	0.74
	Sputum at 2/3 month	0.84	0.58	0.64
	Sputum at 6 months	0.87	0.46	0.51
	Sputum at 8 months	0.74	0.47	0.612
Drug susceptibility	Culture	0.71	0.63	0.77
Treatment	Treatment start date	0.81	0.59	0.65
	Treatment outcome	0.13	0.16	0.68
	Treatment end date	0.63	0.39	0.48
Treatment data	Referred by	0.27	0.30	0.78
	Referred to	0.44	0.26	0.50
	Nutrition support	0.01	−0.13	0.40
	DOT provider	0.23	0.22	0.54

^*κ values range from 1 to −1, with a value of 1 indicating 100% agreement between sources, a value of 0 indicating no agreement beyond what one would expect by chance, and a value of −1 indicating 100% disagreement. A value of 0.8–1.0 can be considered almost perfect agreement, 0.6– 0.8 reflects substantial agreement, 0.4– 0.6 moderate agreement, 0.2– 0.4 fair agreement, 0– 0.2 slight agreement, and <0 reflects poor agreement.