Table 1 Demographic and health related information across SAS developmental sub-groups and associated comparative analyses

 M age; years (SD)

4.27 (1.30)

9.67 (2.78)

24.19 (6.14)

186.018

< .001

PS < SA < AA

 Gender; n (% male)

15 (50.0)

16 (45.7)

12 (75.0)

3.964

.141

 Median self-help score^{b, c} (IQR)

5.00 (4.00–7.00)

6.00 (5.00–7.00)

6.50 (5.25–7.75)

8.732

.013

 Mobility^d; n (% fully mobile)

25 (83.3)

35 (100.0)

15 (93.8)

-

.033

 Vision^c; n (% normal)

23 (76.7)

31 (88.6)

13 (81.3)

-

.475

 Hearing^c; n (% normal)

27 (90.0)

35 (100.0)

15 (93.8)

-

.141

 Speech^d; n (% verbal)

6 (20.0)

13 (37.1)

7 (43.8)

3.420

.181

 M GDQ clinical signs (SD)

6.10 (3.08)

4.80 (2.78)

5.19 (3.45)

1.517

.226

 Eye problems^e; n (% present)

5 (16.7)

7 (20.0)

0 (0.0)

-

.161

 Ear problems^e; n (% present)

6 (20.0)

4 (11.4)

3 (18.8)

-

.670

 Dental problems^e; n (% present)

11 (36.7)

20 (57.1)

7 (43.8)

2.800

.247

 Cleft palate^e; n (% present)

4 (13.3)

1 (2.9)

1 (6.3)

-

.240

 GI problems^e; n (% present)

8 (26.7)

2 (5.7)

2 (12.5)

-

.062

 Epilepsy^e; n (% present)

6 (20.0)

7 (20.0)

0 (0.0)

-

.121

 Respiratory problems^e; n (% present)

7 (23.3)

4 (11.4)

1 (6.3)

-

.326

 Skin problems^e; n (% present)

7 (23.3)

11 (31.4)

4 (25.0)

-

.806