A meta-analysis of the risk of venous thromboembolism in inflammatory rheumatic diseases

Lee, Jason J; Pope, Janet E

doi:10.1186/s13075-014-0435-y

Arthritis Research & Therapy

Table 1 Characteristics of studies included with descriptive statistics on rates of venous thromboembolism ^a

From: A meta-analysis of the risk of venous thromboembolism in inflammatory rheumatic diseases

Study	Year	Location/source	Country	Total RA patients	RA patients with VTE	Total controls	Controls with DVT
Rheumatoid arthritis
Choi et al. [5]	2013	The Health Improvement Network	UK	9,589	192	95,776	870
Bacani et al. [6]	2012	Olmsted County, Minnesota	USA	464	19	464	7
Holmqvist et al. [7]	2012	National Patient Register	Sweden	39,372	838	173,417	1,866
Matta et al. [16]	2009	National Hospital Discharge Survey	USA	4,818,000	110,000	891,055,000	10,227,000
Liang et al. [17]	2006	Olmsted County, Minnesota	USA	609	38	N/A	N/A
Chung et al. [18]	2013	Taiwan National Health Insurance Research Database	Taiwan	29,238	278	116,952	394
Kim et al. [19]	2013	US insurance claims	USA	22,143	265	88,572	448
Romero-Díaz et al. [20]	2009	Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán	Mexico	156	3	N/A	N/A
Zöller et al. [21]	2012	MigMed2 database	Sweden	86,366	2,500	N/A	N/A
Ramagopalan et al. [22]	2011	Oxford Record Linkage Study	UK	268,005	6,825	N/A	N/A
Systemic lupus erythematosus
Aviña-Zubieta et al. [4]	2012	University of British Columbia	Canada	5,031	265	50,310	533
Calvo-Alén et al. [8]	2005	LUMINA Study Group	USA	570	51	N/A	N/A
Kaiser et al. [9]	2009	UCSF Lupus Genetics Project	USA	1,930	426	N/A	N/A
Romero-Díaz et al. [20]	2009	Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán	Mexico	241	25	N/A	N/A
Zöller et al. [21]	2012	MigMed2 database	Sweden	9,147	276	N/A	N/A
Ramagopalan et al. [22]	2011	Oxford Record Linkage Study	UK	23,544	636	N/A	N/A
Sarabi et al. [23]	2005	University of Toronto Lupus Database	Canada	544	30	N/A	N/A
Chang et al. [24]	2006	McGill University Health Centre Lupus Clinic Registry	Canada	426	40	N/A	N/A
Gladman and Urowitz [25]	1980	Lupus Clinic at the Wellesley Hospital	Canada	180	17	N/A	N/A
Chung et al. [32]	2014	Taiwan National Health Insurance Research Database	Taiwan	13,084	228	52,336	61
Sjögren's syndrome
Zöller et al. [21]	2012	MigMed2 database	Sweden	3,410	100	N/A	N/A
Ramagopalan et al. [22]	2011	Oxford Record Linkage Study	UK	12,680	305	N/A	N/A
Haga et al. [26]	2008	Haukeland University Hospital	Norway	90	4	N/A	N/A
Chung et al. [31]	2014	Taiwan National Health Insurance Research Database	Taiwan	8,920	59	35,680	98
Inflammatory myositis
Romero-Díaz et al. [20]	2009	Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán	Mexico	24	2	N/A	N/A
Zöller et al. [21]	2012	MigMed2 database	Sweden	2,122	92	N/A	N/A
Ramagopalan et al. [22]	2011	Oxford Record Linkage Study	UK	6,002	167	N/A	N/A
Selva-O'Callaghan et al. [27]	2011	Vall d'Hebron General Hospital	Spain	97	9	N/A	N/A
Systemic sclerosis
Zöller et al. [21]	2012	MigMed2 database	Sweden	9,323	370	N/A	N/A
Ramagopalan et al. [22]	2011	Oxford Record Linkage Study	UK	11,643	244	N/A	N/A
Aviña-Zubieta et al. [15]	2013	University of British Columbia	Canada	1,284	73	12840	197
Chung et al. [33]	2014	Taiwan National Health Insurance Research Database	Taiwan	1,895	22	7,580	12
ANCA-associated vasculitis
Zöller et al. [21]	2012	MigMed2 database	Sweden	15,085	878	N/A	N/A
Stassen et al. [28]	2008	University of Groningen	Netherlands	198	23	N/A	N/A
Merkel et al. [29]	2005	The Wegener's Granulomatosis Etanercept Trial Research Group	USA	167	16	N/A	N/A
Allenbach et al. [30]	2009	French Vasculitis Study Group Cohort	France	845	67	N/A	N/A

^aANCA, Antineutrophil cytoplasmic antibody; DVT, Deep vein thrombosis; N/A, Not available; RA, Rheumatoid arthritis; VTE, Venous thromboembolism.

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