Table 1.

The Frequency of Sarcoidosis as an underlying cause for Uveitis in International Clinics

Location	Size of series	conclusions
Germany[7]	474	11.4 %, sarcoidosis was most commonly associated systemic disease
Saudi Arabia[8]	888	0.5 % of uveitis had sarcoidosis as underlying disease
Taiwan[9]	405	Sarcoidosis account for 2.7 % of uveitis
Korea [10]	602	2.7 %
Japan [11]	695	8.1 %, sarcoidosis was most common systemic cause
India [12]	980	2 %
New Zealand[13]	1148	5% of patients had sarcoidosis and panuveitis (17.5%) was most common type of uveitis.
Turkey [14]	4863	2.8 % of uveitis caused by sarcoidosis with female predominance (M:F=1:4)
Australia[15]	1165	Sarcoidosis was associated in 5.8% of patients younger than 60 year-old and 8.9 % of patients older than 60 year-old