Difference in proportion of presenting problems in 2007 versus 1997
| Presenting problem | % difference | Upper 95% CI | Lower 95% CI | SE | p Value |
| Breathing difficulty | 10.9 | 9.24 | 12.5 | 0.83 | <0.001 |
| Febrile illness | 5.9 | 4.45 | 7.27 | 0.72 | <0.001 |
| Diarrhoea±vomiting | 2.0 | 0.71 | 3.35 | 0.67 | <0.001 |
| Rash | −3.6 | −4.45 | −2.75 | 0.43 | <0.001 |
| Abdominal pain | −0.6 | −1.47 | 0.27 | 0.45 | <0.5 |
| Seizure | −1.3 | −2.11 | −0.49 | 0.42 | <0.01 |
| Other | 11.9 | 10.69 | 13.19 | 0.64 | <0.01 |