Table 1. Characteristics of included studies.

Study	Country	Age	Sex ratio-Osteoarticular brucellosis (Male/Female)	Sample size (brucellosis)	Sample size (Osteoarticular brucellosis)	Prevalence/Proportion	Joints affected
Aktug-Demir et al., 2014	Turkey	18+	N/A	227	75	0.33	Sacroiliac, spine
Al-Eissa et al., 1990	Saudi Arabia	0–14	15/25 (37.5/62.5%)	102	40	0.39	N/A
Ariza et al., 1993	Spain	7–83	42/20 (67.7/32.2%)	530	62	0.12	Spine, hip, bursa
Aydoslu et al., 2006	Turkey	17–76	N/A	47	14	0.3	Sacroiliac, spine, peripheral arthritis
Benjamin et al., 1992	Saudi Arabia	N/A	N/A	157	57	0.36	Hip, knee
Benjamin and Khan, 1994	Saudi Arabia	0–12	N/A	190	70	0.37	Sacroiliac, spine, hip, knee, ankle, shoulder
Besharat et al., 2010	Iran		N/A	140	56	0.4	N/A
Bosilkovski et al., 2004a	Macedonia	3–78	N/A	331	196	0.59	Sacroiliac, spine, hip, bursa, sternochondral, costochondral
Bosilkovski et al., 2004b	Macedonia	4–69	18/15 (54.5/45.5%)	263	162	0.62	Hip
Bosilkovski et al., 2010	Macedonia	1–82	N/A	550	299	0.54	Peripheral arthritis, sacroilitis, spondylitis
Bosilkovski et al., 2013	Macedonia	0–14	N/A	317	133	0.42	Sacroiliac, hip, knees, ankle, bursa, shoulder, elbow, wrist, interphalangeal, sternoclavicular
Bukharie, 2009	Saudi Arabia	13–81	N/A	84	54	0.64	Spine
Bulut et al., 2011	Turkey	15–83	N/A	324	84	0.26	Sacroiliac, spine
Cirakli et al., 2015	Turkey	2–17	42/10 (80.8/19.2%)	52	11	0.21	Hip, knee
Colmenero et al., 1991	Spain	14–73	N/A	263	65	0.25	Sacroiliac, spine, ankle, olecranon bursa
Colmenero et al., 1992	Spain	14–82	N/A	593	58	0.1	Spine
Colmenero et al., 1996	Spain	14+	2/-	530	2	0.004	Sacroiliac, spine
Colmenero et al., 2008	Spain	>14	69/27 (72/28%)	918	96	0.11	Vertebral osteomyelitis
Dabbagh and Rasool 2009	Iraq	<10 >60	N/A	80	45	0.56	Knee, spine, sacroiliac
Dahouk et al., 2005	Germany	4–72	14/16	62	11	0.37	Sacroiliac, sternoclavicular, spine, bursa
Demiroglu et al., 2007	Turkey	15–79	N/A	151	51	0.34	Spine, sacroiliac, tendon
Ebrahimpour et al., 2017	Iran	15–80	299/165 (64.4/35.6%)	1252	464	0.37	Sacroiliac, hip, knee, ankle, elbow, shoulder
Eini et al., 2012	Iran	9–88	N/A	230	118	0.51	Spine
Fanni et al., 2013	Iran	2–14	N/A	34	26	0.77	Hip, knee, elbow, wrist, ankle, sacroiliac
Fruchtman et al., 2015	Israel	0–19	N/A	252	92	0.37	N/A
Gonen et al., 2013	Turkey	15–88	N/A	201	50	0.25	Sacroiliac, spine
Gotuzzo et al., 1987	Peru	N/A	N/A	92	22	0.24	Sacroiliac, knee, ankle, spine
Guler et al., 2014	Turkey	3–82	N/A	370	178	0.48	Sacroiliac, spine, bursa
Gur et al., 2003	Turkey		N/A	283	195	0.69	Spine, sacroiliac
Hizel et al., 2007	Turkey	15–81	N/A	163	72	0.44	Spine, sacroiliac, paravertebral
Issa and Jamal, 1999	Jordan	3–14	N/A	68	38	0.56	N/A
Jia et al., 2017	China	3–75	N/A	590	137	0.23	Sacroiliac, knee, spine
Kazak et al., 2016	Turkey	15–85	N/A	164	87	0.53	Sacroiliac, hip, ankle, knee, spine
Khateeb et al., 1990	Kuwait	13–75	N/A	400	104	0.46	Sacroiliac, hip, knee, spine
Kokoglu et al., 2006	Turkey	15–69	67/71 (48.5/51.5%)	138	64	0.14	Sacroiliac, spine, peripheral arthritis
Kose et al., 2014	Turkey	14–83	N/A	72	10	0.31	Sacroiliac, spine
Kouba et al., 2013	Tunisia	19–74	23/9 (72/28%)	146	32	0.22	Spine
Kursun et al, 2013	Turkey	N/A	N/A	447	137	0.31	Spine
Lulu et al., 1988	Kuwait	10–60	N/A	400	105	0.26	Sacroiliac, spine, hip, knee, shoulder, ankle, elbow
Memish et al., 2000	Saudi Arabia	0–40	N/A	160	68	0.42	Sacroiliac, spine, hip, knee,ankle
Memut et al., 2012	Turkey	15–77	N/A	231	70	0.37	Sacroiliac, spine, bursa
Mugahi et al., 2014	Iran	11–80	N/A	81	8	0.099	N/A
Namiduru et al., 2003	Turkey	16–70	7/7/ (50/50%)	186	14	0.08	Spine
Okur et al., 2012	Turkey	2–16	N/A	147	20	0.14	N/A
Parlak et al., 2015	Turkey	1–16	N/A	496	55	0.11	Peripehral arthritis
Pourbagher et al., 2006	Turkey	2–77	N/A	251	114	0.45	Sacroiliac, spine, hip, bursa
Qehaja-Bucaj et al., 2015	Kosovo	2–74	N/A	124	55	0.44	Sacroiliac, spine, hip
Roushan et al., 2004	Iran	16–90	N/A	469	69	0.15	Sacroiliac, spine, ankle, knee, hip, wrist, sternoclavicular
Roushan et al., 2005	Iran	3–15	N/A	111	35	0.32	Sacroiliac, spine, ankle, knee, hip, wrist, shoulder
Santiago et al., 2011	Portugal	N/A		90	44	0.49	N/A
Sasan et al., 2012	Iran	0–16	N/A	82	52	0.63	Knee and hip
Savas et al., 2007	Turkey	2–77	N/A	140	74	0.53	Sacroiliac, spine
Tasova et al., 1999	Turkey	15–75	51/36 (58.6/41.4%)	238	87	0.37	Sacroiliac, spine, knee, ankle, bursa
Ulug et al., 2011	Turkey	4–15	N/A	22	5	0.23	Sacroiliac, hip, spine, ankle, sternoclavicular
Zaks et al., 1995	Israel	N/A	N/A	90	40	0.41	Sacroiliac, spine, hip, knee, ankle, shoulder, elbow
Zamani et al., 2011	Iran	2–12	14/10 (58.3/41.7%)	96	24	0.25	Knee, hip, ankle, wrist elbow