Table 3.

Characteristics of included studies.

Reference, country	Patient characteristics, country	Duration of Behçet’s disease	Assessment of fibromyalgia
Melikoglu and Melikoglu,16 Turkey	N = 100, 19–51 years, 60% female, duration of BD	With fibromyalgia (months ± SD) 100.2 ± 64.3, without fibromyalgia 81.9 ± 44.36	FIQ and clinical examination
Haliloglu et al.,17 Turkey	N = 53, 19–53 years, 41.5% female	Not reported	FIQ and clinical examination
Lee et al.,18 South Korea	N = 70, mean age 39.0 years (SD 9.4 years), 64% female	With fibromyalgia (mean ± SEM) 3.76 ± 0.72, without fibromyalgia 3.76 ± 0.72	FIQ
Al-Izzi et al.,19 Iraq	N = 90, 17–62 years, 46% female	Mean 6.5 years	Diffuse pain questionnaire, clinical examination

SD: standard deviation; FIQ: Fibromyalgia Impact Questionnaire; SEM: standard error of mean.