Mortality in Tonga over three triennia, 2010–2018

BMC Public Health

Table 1 Reported deaths by source, Tonga, 2010-2018^a

Year	Civil registry		MCCD		Hospital discharge^b		Community nursing reports		Reconciled deaths ^d
Year	N	% ^c	N	% ^c	N	% ^c	N	% ^c	Reconciled deaths ^d
2010	409	55.1	524	70.6	121	16.3	410	55.3	742
2011	387	50.1	597	77.3	143	18.5	469	60.8	772
2012	389	51.2	566	74.5	163	21.4	478	62.9	760
2010–12	1185	52.1	1687	74.2	427	18.8	1357	59.7	2274
2013	462	60.9	573	75.5	158	20.8	516^e	68.1	758^f
2014	596	63.5	722	76.9	188	20.0	660	70.3	940
2015	531	66.0	598	74.3	136	16.9	572	71.1	805
2013–15	1589	63.5	1893	75.6	482	19.3	1748	69.9	2503
2016	546	65.8	645	77.7	125	15.1	578	69.7	829
2017	576	68.9	530	63.4	132	15.8	592	70.7	837
2018	562	67.3	597	71.5	104	12.5	601	72.0	835
2016–18	1684	67.3	1772	70.9	361	14.4	1771	70.8	2501

Abbreviations: MCCD medical certificate of cause of death, N Number of deaths recorded in the source
^aExcludes overseas deaths, and deaths among non-residents and foreign nationals
^bCombined with MCCD in the three-source capture-recapture analysis to assess reporting completeness
^cReporting completeness of the source as a percentage of the reconciled deaths
^dUnique deaths from all four sources deduplicated and reconciled using deterministic and probabilistic linkage
^eThis figure is incomplete as the community nursing reports for six health centres in Tongatapu and the health centres in Ha’apai and Vava’u were not available.
^fThis figure is likely to be an undercount of the number of deaths in 2013 due to unavailable community nursing reports

ISSN: 1471-2458