Table 1. Demographic data of the patients.

	RP, n=74
Age (years)
Mean ± SD	39.20±12.4
Range	(18-71)
Sex
Male	40 (54%)
Female	34 (46%)
Education level
Primary school	32 (43%)
Secondary school	27 (37%)
University	15 (20%)
Marital status
Married	47 (64%)
Single	23 (31%)
Divorced	4 (5%)
Parental consanguinity
None	19 (25%)
First degree	28 (38%)
Second degree	16 (22%)
Third degree	11 (15.0%)

RP: Retinitis pigmentosa, SD: Standard deviation