Table 2. Kappa statistic analysis of physician agreement for injury deaths by age group.

		Children (≤14 years)				Adults (15–69 years)				Elderly (≥70 years)
Variable	Sub-Categories	n	% Agree	Kappa	99% CI	n	% Agree	Kappa	99% CI	n	% Agree	Kappa	99% CI
Overall		1595	84.1	0.81	0.79–0.82	8162	80.9	0.77	0.76–0.78	1752	58.2	0.44	0.40–0.45
Live with Status	Yes	1081	82.6	0.79	0.79–0.81*	4666	78.7	0.74	0.74–0.75*	1290	56.5	0.40	0.36–0.40*
	No	371	86.5	0.83	0.83–0.86*	2911	84.1	0.80	0.79–0.81*	349	61.0	0.51	0.50–0.53*
Respondent Gender	Male	894	83.8	0.81	0.79–0.84	4241	80.2	0.76	0.75–0.76*	950	58.4	0.44	0.41–0.45
	Female	665	84.5	0.81	0.80–0.82	3832	81.5	0.77	0.76–0.78*	788	57.7	0.43	0.41–0.47
Respondent Education	Less than Primary	908	83.5	0.80	0.78–0.82	3912	80.5	0.77	0.75–0.78	737	59.7	0.47	0.44–0.53*
	Primary	191	85.3	0.82	0.77–0.84	982	79.8	0.75	0.73–0.77	214	57.0	0.44	0.41–0.52*
	>Primary	466	84.6	0.82	0.80–0.83	3074	81.3	0.77	0.76–0.78	766	56.9	0.39	0.36–0.41*
Respondent Relationship	Related	1457	84.4	0.81	0.80–0.82	7346	80.6	0.77	0.76–0.77*	1603	57.4	0.42	0.40–0.45*
	Unrelated	95	85.3	0.82	0.80–0.85	699	83.6	0.79	0.77–0.79*	132	67.4	0.58	0.48–0.64*
Religion	Hindu	1271	84.1	0.81	0.80–0.82*	6786	81.2	0.77	0.76–0.78*	1427	58.7	0.44	0.44–0.47*
	Muslim	237	83.1	0.79	0.77–0.80*	675	80.4	0.77	0.73–0.80*	152	50.7	0.31	0.22–0.40*
	Other	83	86.8	0.84	0.78–0.90*	678	78.2	0.73	0.71–0.76*	166	59.6	0.46	0.39–0.52*
Language	Hindi	863	82.0	0.79	0.76–0.79*	2979	76.2	0.72	0.71–0.73*	646	54.3	0.37	0.33–0.39*
	English	68	95.6	0.95	0.90–0.98*	649	82.3	0.78	0.77–0.81*	98	67.4	0.58	0.53–0.70*
	Other	674	85.8	0.83	0.82–0.84*	4534	83.8	0.80	0.79–0.80*	1008	59.7	0.46	0.42–0.78*
Deceased Gender	Male	916	86.0	0.83	0.82–0.88*	5637	81.1	0.77	0.77–0.78*	901	59.4	0.48	0.47–0.50*
	Female	679	81.6	0.78	0.77–0.80*	2524	80.4	0.75	0.75–0.76*	851	56.9	0.38	0.37–0.40*
Deceased Education	Age-Appropriate	1337	84.7	0.82	0.81–0.82*	-	-	-	-	-	-	-	-
	Below Age-Appropriate	201	89.1	0.87	0.85–0.91*	-	-	-	-	-	-	-	-
	Less than Primary	-	-	-	-	3964	78.6	0.75	0.74–0.75*	1437	57.8	0.43	0.41–0.45
	Primary	-	-	-	-	1099	82.0	0.78	0.77–0.78*	133	60.2	0.48	0.40–0.52
	>Primary	-	-	-	-	2968	83.4	0.79	0.78–0.81*	156	58.3	0.42	0.39–0.50
Death Place	Home	685	80.7	0.77	0.76–0.78*	3188	77.2	0.70	0.70–0.72*	1348	53.0	0.33	0.31–0.35*
	Health Facility	248	81.1	0.78	0.76–0.81*	1652	80.8	0.77	0.76–0.77*	167	73.7	0.66	0.58–0.66*
	Other	578	89.6	0.86	0.84–0.87*	3041	84.9	0.81	0.80–0.81*	184	79.4	0.75	0.71–0.79*
Death Registration	Yes	401	86.8	0.84	0.82–0.85*	3409	81.3	0.77	0.76–0.79	693	56.1	0.39	0.36–0.40
	No	595	81.9	0.78	0.77–0.80*	1641	80.0	0.76	0.74–0.78	411	53.5	0.39	0.35–0.45
Rural/Urban	Rural	1429	84.3	0.81	0.79–0.82	6751	81.3	0.77	0.77–0.77*	1403	58.5	0.45	0.43–0.46
	Urban	166	82.5	0.79	0.69–0.86	1411	79.2	0.74	0.72–0.75*	349	56.7	0.37	0.31–0.46
EAG+Assam vs Non-EAG	EAGA	858	81.7	0.78	0.78–0.82	2840	77.5	0.74	0.73–0.75*	626	52.1	0.36	0.33–0.40*
	Non-EAGA	737	87.0	0.84	0.81–0.86	5322	82.7	0.78	0.78–0.79*	1126	61.6	0.48	0.45–0.52*

Footnote: * indicates that the 99% confidence intervals do not overlap between one or more sub categories of the variable. EAGA = Empowered Action Group including Assam.