First author Publ. year Country | Study design / Population /Method of collection | Sample size | Crude response rate (%) | Outcome definition | Outcome assessment method | Prevalence period | Age | Prevalence* (95% CI) | Risk of bias | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Total | M | F | M | F | Total | ||||||||
Andrianakos [10] 2006 Greece | 1966-99, (19+ yo), the total adult population in 7 mixed communities + random sample in another 2 mixed communities (the ESORDIG study). Home visit by a rheumatologist. Interview and examination | 8740 | 4269 | 4471 | 82 | ACR 1987 criteria | Self report + examination | Point | 60-69 | 0.9 | L | ||
70+ | 0.9 | ||||||||||||
Carmona [11] 2001 Spain | (20+ yo), a stratified multistage cluster sampling from the censuses of 20 municipalities. Postal questionnaire + interview by a rheumatologist | 2192 | 1014 | 1178 | 73 | ACR criteria, based on modified questionnaire | Self report | Point | 60-69 | 1.0 | L | ||
70-79 | 0.5 | ||||||||||||
80+ | 2.7 | ||||||||||||
Collerton [12] 2009 UK | 2006-7, (85+ yo), all people born in 1921, permanently registered with a participating GP in Newcastle upon Tyne or North Tyneside primary care trusts (the Newcastle 85+ Study). Medical records at the GP | 853 | 323 | 530 | 59 | Not stated | Medical record | Point | 85 | 0.5 | 5.1 | 3.5 | U |
Englund [13] 2010 Sweden | 2008, (20+ yo), all patients diagnosed with RA registered in the Skåne Health Care Register, southern Sweden. Data from a national registry | 931316 | 27% | 73% | N/A | Diagnosis of RA given by a specialist in rheumatology or internal medicine | National register | Point | 65-74 | 1.0 | 1.9 | 1.5 | L |
75-84 | 1.0 | 1.7 | 1.5 | ||||||||||
85+ | 1.2 | 1.2 | 1.1 | ||||||||||
Hanova [14] 2006 Czech Republic | 2002, (16+ yo), all patients diagnosed before 28th February reported by all rheumatologists, other specialists, and almost all GPs. Medical records from GPs. | ? | ? | ? | N/A | ACR 1987 clinical criteria | Medical record | Point | 60-69 | 0.6 | 2.3 | U | |
70-79 | 0.6 | 2.9 | |||||||||||
80+ | 0.5 | 0.8 | |||||||||||
Laiho [15] 2001 Finland | 1989, (75, 80 & 85 yo), a computer-generated random sample from the population register, Helsinki & Vantaa (the Helsinki Ageing Study & the Vantaa study). Interview and examination | 1317 | 484 | 833 | 76-96 | ACR 1987 clinical criteria | Self report + examination | Point | 75 | 2.8 | 1.2 | 1.7 | U |
80 | 0 | 1.4 | 1.0 | ||||||||||
85 | 0 | 1.3 | 1.0 | ||||||||||
Neovius [16] 2010 Sweden | 2008, (16+ yo), patients with a clinical visit listing an RA diagnosis were identified in inpatient and outpatient specialist care in the National Patient Register (1964–2007) together with patients listed in the Swedish Rheumatology Quality Register (SRQ; 1995–2007). National register | 58102 | ? | ? | ? | Any visit listing an RA diagnosis was used to define RA. | National register | Point | 60-69 | 0.9 | 2.1 | 1.5 | L |
70-79 | 1.3 | 2.6 | 2.0 | ||||||||||
80+ | 1.5 | 2.7 | 2.2 | ||||||||||
Ollivier [17] 2004 France | 1996, (18+ yo), a random sample from the official list of phone numbers in Brittany. Telephone interviews by a rheumatologist | 1672 | 0 | 1672 | 92 | ACR 1987 clinical criteria | Self report + examination | Point | 60-69 | 1.5 | L | ||
70-79 | 1.1 | ||||||||||||
80-89 | 1.4 | ||||||||||||
Picavet [18] 2003 The Netherlands | 1998, (25+ yo), a 6 months follow-up on a baseline stratified random sample taken from the population register (the Dutch population-based Musculoskeletal Complaints and Consequences Cohort study, DMC3-study). Postal questionnaire | 2338 | ? | ? | 85 | "Please indicate whether a physician or medical specialist has ever told you that you have one or more of the following diseases [RA]” | Self repot | Point | 65-74 | 6 | H | ||
75+ | 10 | ||||||||||||
Rasch [19] 2003 USA | 1988-94, (60+ yo), a multistage, stratified probability sample representative of the civilian non-institutionalized population residing in the 50 states of the USA. Home interviews and examination at mobile centers | 5302 | ? | ? | 80 | ACR 1987 clinical criteria: 3 out of 6 criteria met (“n of k”) | Self report + laboratory results | Point | 60+ | 1.6 (0.8-2.4) | 2.4 (1.4-3.4) | L | |
Rasch [19] 2003 USA | 1988-94, (60+ yo), a multistage, stratified probability sample representative of the civilian non-institutionalized population residing in the 50 states of the USA. Home interviews and examination at mobile centers | 5302 | ? | ? | 80 | ACR 1987 clinical criteria: allowing surrogate classification variables when a primary classification variable is unavailable (“classification tree”) | Self report + laboratory results | Point | 60+ | 1.6 (0.8-2.4) | 2.6 (1.6-3.6) | L | |
Riise [20] 2000 Norway | 1987 & 1996, (20+), all records of patients registered at the Department of Rheumatology at the University Hospital of Tromsø [only 1996 prevalence reported here] | 2282 | ? | ? | ? | ACR 1987 clinical criteria (ICD-9 diagnoses 714.0 and 714.9) in medical records and subsequently critical reviews by a senior consultant | Medical record | Point | 60-69 | 0.9 | 1.4 | 1.2 | L |
70-79 | 0.9 | 1.9 | 1.5 | ||||||||||
80-89 | 1.3 | 1.3 | 1.5 | ||||||||||
90+ | 0.2 | 0.6 | 0.4 | ||||||||||
Symmons [21] 2002 UK | (16+), a two-stage stratified random sample from 11 GPs in Norfolk (GPs allowed to exclude certain patients). Postal questionnaire and examination at the GP | 5424 | ? | ? | 77 | A modified version of the ACR 1987 criteria for symptomatic RA followed by a clinical assessment | Clinical assessment | Point | 65-74 | 1.5 (0.8-3.0) | 3.3 (1.9-5.9) | U | |
75+ | 3.1 (1.7-5.5) | 5.4 (3.1-9.3) |