Table 1

Demographic characteristics of the University of Washington Joubert syndrome cohort

Characteristic	N	%*
Current age (years)
0–9	178	33.5
10–19	157	29.5
20–29	65	12.2
30–39	24	4.5
≥40	6	1.1
Unknown age	42	7.9
Deceased
Terminations of pregnancy	11	2.1
Other deaths†	49	9.2
Total	532	100
Continent of residence
North America	316	59.4
Europe	51	9.6
Australia	23	4.3
South America	17	3.2
Asia (Middle East=88)	125	23.5
Families with known consanguinity*	84	19.1
Male	295	55.5
Families with ≥1 affected child*	79	17.9

*Percentages are calculated by individual for all variables except consanguinity and >1 affected child.
*†Includes one in utero demise.