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The CA changes in grade 1 students from 2014 to 2015.
| Year 2014–2015 | |||
|---|---|---|---|
| Grade 1 (aged 5–8 years) | Positive CA∗ (n) | Negative CA∗∗ (n) | Total (n) |
| AL/CR increased | 488 | 434 | 922 |
| AL/CR decreased or unchanged | 58 | 96 | 154 |
Chi-square test: X2 = 12.304, p=0.001; OR = 1.861 (95% CI 1.31∼2.64); RR = 1.405 (95% CI 1.14∼1.74); ∗the number of students with increased CA; ∗∗the number of students with decreased or unchanged CA; OR means odds ratio; RR means relative ratio.
