Proportion of 7-year-old children with an isolated cleft achieving the expected academic level or above across all five subject areas, according to overall annual school absence and cleft type.
| Annual overall school absence | Number (%) of children | Number (%) reaching the national ‘expected level’ of academic achievement* | OR (95% CI) | ||||||
| Unadjusted | Adjusted for cleft type | Adjusted for cleft type, sex, IDACI* quintile and free school meal eligibility | |||||||
| 0–5 days | 1192 | (33.8) | 923 (77.4) | 1 | – | 1 | – | 1 | – |
| 5.5–10 days | 943 | (24.8) | 675 (71.6) | 0.73 | (0.60 to 0.89) | 0.74 | (0.61 to 0.90) | 0.75 | (0.61 to 0.92) |
| 10.5–15 days | 601 | (17.0) | 400 (66.6) | 0.58 | (0.47 to 0.72) | 0.59 | (0.47 to 0.73) | 0.63 | (0.50 to 0.79) |
| 15.5–20 days | 342 | (9.7) | 202 (59.1) | 0.42 | (0.33 to 0.54) | 0.43 | (0.33 to 0.56) | 0.52 | (0.40 to 0.68) |
| >20 days | 445 | (12.6) | 193 (43.4) | 0.22 | (0.18 to 0.28) | 0.23 | (0.18 to 0.29) | 0.30 | (0.23 to 0.38) |
| Cleft type | Number (%) of children | Number (%) reaching the national ‘expected level’ of academic achievement* | OR (95% CI) | ||||||
| Unadjusted | Adjusted for school absence | Adjusted for school absence, sex, IDACI* quintile and free school meal eligibility | |||||||
| Cleft lip only | 920 | (26.1) | 676 (73.5) | 1 | 1 | 1 | |||
| Cleft palate only | 1257 | (35.7) | 828 (65.9) | 0.70 | (0.58 to 0.84) | 0.72 | (0.60 to 0.88) | 0.64 | (0.52 to 0.78) |
| Cleft lip and palate | 1346 | (38.2) | 889 (66.1) | 0.70 | (0.58 to 0.85) | 0.76 | (0.63 to 0.92) | 0.77 | (0.63 to 0.94) |
*See text for further explanation.
IDACI, Income Deprivation Affecting Children Index.