Educational attainment in reading, writing and mathematics at Key Stage 1: data from (1) DfE and (2) schools, with parental consent and direct from parents
| Anonymous data from DfE | School/parental data | |||
|---|---|---|---|---|
| Erythromycin | Co-amoxiclav | Erythromycin | Co-amoxiclav | |
| Reading | 1.00 (0.96 to 1.04) | 0.99 (0.95 to 1.03) | 1.03 (0.97 to 1.08) | 0.96 (0.91 to 1.01) |
| Writing | 1.00 (0.97 to 1.04) | 0.99 (0.95 to 1.02) | 1.03 (0.98 to 1.08) | 0.96 (0.91 to 1.00) |
| Maths | 0.99 (0.96 to 1.03) | 0.99 (0.95 to 1.03) | 1.00 (0.94 to 1.05) | 0.97 (0.92 to 1.03) |
Overall RR and 95% CIs are from Poisson models for level achieved (scaled 1–6) adjusting for test year, 2002–2007.
There is no evidence of overdispersion. If interaction effects for reading in the DCFS data are included, main effect estimates are not importantly changed from those shown. More details are available in the supplementary materials.