Table 4.

Independent predictors of blindness/partial sight loss in the whole population

Characteristic	Regression 1		Regression 2 (including the interaction term: age × co-occurringintellectual disabilities and autism)
	OR	95% CI	OR	95% CI
Not present (reference)	–	–	–	–
Co-occurring intellectual disabilities and autism	36.78	34.21 to 39.54	65.90	58.74 to 73.92
Sex
Male (reference)	–	–	–	–
Female	1.01	1.00 to 1.02	1.01	1.00 to 1.02
Age (years)
0–15 (reference)	–	–	–	–
16–24	1.56	1.48 to 1.64	1.66	1.58 to 1.75
25–34	1.82	1.74 to 1.91	1.91	1.82 to 2.01
35–44	2.55	2.44 to 2.66	2.69	2.57 to 2.81
45–54	4.42	4.24 to 4.60	4.67	4.48 to 4.87
55–64	7.50	7.22 to 7.80	7.93	7.61 to 8.26
65+	31.06	29.95 to 32.22	32.75	31.51 to 34.04
Age × both intellectual disabilities and autism (years)
0–15 (reference)	–	–	–	–
16–24	–	–	0.43	0.35 to 0.53
25–34	–	–	0.67	0.52 to 0.84
35–44	–	–	0.53	0.41 to 0.68
45–54	–	–	0.37	0.29 to 0.47
55–64	–	–	0.28	0.21 to 0.37
65+	–	–	0.25	0.19 to 0.33
Constant
–	0.00	–	0.00	–