Interval from symptom onset to consultation (early diagnosis group < 24 weeks and late diagnosis group ⩾ 24 weeks)
| Variable | Early diagnosis group (n = 75) | Late diagnosis group (n = 20) | p value |
|---|---|---|---|
| Stage I | 53 | 8 | < 0.005 |
| Stage II | 20 | 8 | |
| Stage III/IV | 2 | 4 | |
| Doctor | NS | ||
| Paediatrician | 45 | 11 | |
| Ophthalmologist | 30 | 9 | |
| Health insurance | NS | ||
| Yes | 35 | 4 | |
| No | 40 | 16 | |
| Parental education | < 0.018 | ||
| Elementary or lower | 44 | 18 | |
| High school or higher | 31 | 2 | |
| Place of residency | NS | ||
| Urban | 66 | 16 | |
| Rural | 9 | 4 | |
| Buenos Aires area | 41 | 11 | |
| Rest of the country | 34 | 9 |