Study | Year | Country | No. Patients | Men (%) | Diagnosis | Age, yrs | Disease Duration, yrs | Prevalence of VF (%) | Definition of VF |
---|---|---|---|---|---|---|---|---|---|
Ralston32 | 1990 | UK | 111 | 88 | SpA | median 41 | median 17 | 21 | #1, Th Ha/Hp < 0.80 L Ha/Hp < 0.85 |
Cooper7 | 1994 | USA | 158 | 77 | AS* | mean 34 | no data | 11 | #2, radiologists’ interpretation |
Donelly6 | 1994 | UK | 87 | 71 | SpA | mean 44 | mean 16 | 9 | #1, McCloskey38 |
Sivri39 | 1996 | Turkey | 22 | 91 | AS* | mean 37 | mean 10 | 41 | #1, Ha, Hp < 0.85 |
Mitra1 | 2000 | UK | 66 | 100 | AS* | median 38 | median 10 | 17 | #1, McCloskey |
Lange4 | 2005 | Germany | 84 | 63 | AS* | mean 32–56, 4 groups | mean 9–32, 4 groups | 11 | #1, no data |
Jun9 | 2006 | South Korea | 68 | 100 | AS* | mean 31 | mean 7 | 16 | #1, no data |
Vosse30 | 2006 | Netherlands | 135 | 67 | AS* | mean 50 | mean 9 | 31 | #1, Ha/Hp ≤ 0.80 |
Ghozlani29 | 2009 | Morocco | 80 | 84 | AS* | mean 39 | mean 11 | 42 | #1, Genant23 VFA |
Mermerci Baskan31 | 2010 | Turkey | 100 | 75 | AS* | mean 40 | mean 11 | 19 | #1, Any height ≤ 0.85 |
Klingberg | Sweden | 204 | 57 | AS* | mean 50 | mean 15 | 12 | #1, Genant |
↵* AS fulfilling the modified New York criteria.
↵#1: Morphometric vertebral fractures on radiographs when examining all study patients.
↵#2: Clinical fractures including only fractures that have come to clinical attention and are found in medical registers. AS: ankylosing spondylitis; SpA: spondyloarthritis; Th: thoracic; L: lumbar; Ha/Hp: anterior/posterior vertebral height; VFA: vertebral fracture assessment using dual-energy x-ray absorptiometry.