Table 2. Descriptive odds ratio across all relative age quarters.
|  | Total |  | 
| Quarter | x2 | p | OR [95% CI] | 
| Q1:Q2 | 8.377 | .004 | 2.73 [1.68, 4.45] | 
| Q1:Q3 | 12.832 | <.001 | 3.65 [2.19, 6.08] | 
| Q1:Q4 | 17.672 | <.001 | 4.86 [2.85, 8.30] | 
Note: bolded values indicate significance of odds ratio (if 95% CI does not include 1). OR=odds ratio; CI = confidence interval