Completeness of regional cancer registry data in Northwest Russia 2008-2017

BMC Cancer

Table 2 Data sources and completeness estimates in the regions of Northwest Russia, 2008-2017, all sites except non-melanoma skin (C00-C96 without C44)

Region	Cases	Deaths*			Data sources (%)				Completeness (%)
		Period	Cohort	M:I ratio†	C/P	C/P and D‡	DCO	DCI	Lincoln-Petersen estimator	Ajiki formula
Arkhangelsk oblast	46,519	26,831	25,537	0.58	44.2	47.8	4.5	8.0	93.3	93.6
Kaliningrad oblast	30,964	19,231	16,967	0.62	45.1	50.7	0.9	4.3	96.5	97.3
Leningrad oblast	44,095	39,825	15,934	0.90	63.7	26.6	6.5	9.8	72.9	98.8
Murmansk oblast	28,459	13,898	12,584	0.49	54.9	40.3	2.1	4.8	92.9	94.7
Novgorod oblast	25,945	13,822	11,946	0.53	53.6	39.6	6.2	6.7	90.4	93.7
Pskov oblast	25,651	16,522	14,290	0.64	44.2	50.2	3.6	5.6	95.6	96.7
Republic of Karelia	25,548	15,083	13,734	0.59	45.9	46.0	2.6	8.1	92.6	93.9
Republic of Komi	30,924	17,078	15,868	0.55	48.5	42.1	4.6	9.4	89.6	91.5
Saint-Petersburg	219,593	129,045	118,419	0.59	44.8	36.1	17.6	19.1	79.4	83.5
Vologda oblast	38,955	25,693	20,498	0.66	47.2	44.1	8.4	8.7	91.2	95.1

C/P - clinical/pathological notification only; C/P and D - clinical/pathological notification and death certificate; DCO - cases registered based on death certificates only; DCI - cases initially registered based on information from the death certificate and further investigated.
* - period cancer deaths were obtained from the civil registry for 2008-2017; cohort cancer deaths were obtained from the cancer registry database for patients diagnosed in 2008-2017.
†- Mortality to incidence ratio was based on the number of deaths from the civil registry.
‡- all DCI cases were excluded, including those with clinical/pathological information

ISSN: 1471-2407