Longitudinal pharmacoepidemiological and health services research for substance users in treatment: protocol of the Belgian TDI-IMA linkage

Table 1 Number of records in TDI and corresponding number of records for every IMA table, TDI-IMA database, Belgium, 2008-2017

Year	TDI records	TDI-IMA linkage records		IMA records
	TDI records	TDI-IMA linkage records		Socio-demographic records		Health services records		Pharmaceutical records
	cases	cases	comparators	cases	comparators	cases	comparators	cases	comparators
2008				29,956	114,546	2,832,502	4,841,577	441,524	673,262
2009				30,097	115,955	3,176,192	5,230,939	600,216	781,410
2010				30,269	117,536	3,497,624	5,503,252	645,338	794,171
2011	6011	6011	24,044	30,501	119,317	3,973,171	5,783,429	673,054	818,394
2012	7352	7352	29,408	30,574	120,401	4,704,952	6,112,367	697,780	849,270
2013	8354	8354	33,416	30,520	120,754	5,193,173	6,448,273	713,542	870,148
2014	9188	9188	36,752	30,272	120,454	5,554,960	6,754,846	725,400	888,430
2015				29,765	119,300	4,904,975	7,098,578	733,370	917,926
2016				N/A	N/A	2,794,918	4,618,602	699,002	887,280
2017				N/A	N/A	N/A	N/A	N/A	N/A
total	30,905	30,905	123,620

ISSN: 2049-3258