Table 3.

Proportion of children with visual impairment and proportion who presented to hospital (primary outcome)

	Peek group	Standard group
Children with visual impairment on screening referred to hospital*
Number of children	531 (5%)	366 (4%)
Male sex	226 (43%)	153 (42%)
Mean age, years (SD)	11·5 (3·0)	11·7 (2·8)
Lower primary years 1–3	179 (34%)	94 (26%)
Upper primary years 4–8	352 (66%)	272 (74%)
Children with visual impairment on screening who presented at hospital*
Number of children	285 (54%)	82 (22%)
Male sex	130 (46%)	35 (43%)
Mean age, years (SD)	11·6 (2·9)	11·5 (2·6)
Lower primary years 1–3	88 (31%)	16 (20%)
Upper primary years 4–8	197 (69%)	66 (72%)
Children who could not see 6/12 in either eye in hospital visual acuity test
Number of children	68 (25%) 276†	37 (47%) 78‡

Data are n (%), unless otherwise specified.

^*Visual impairment defined as vision less than 6/12 in either eye.

^†Vision from nine children was not recorded.

^‡Vision from four children was not recorded.