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The distribution of total school absence in quartiles.
| N | Mean | SD | Min | Max | % absent | |
| 1st quartile | 2827 | 0.39 | 0.47 | 0 | 1 | 0.5 |
| 2nd quartile | 1740 | 2.34 | 0.54 | 1.17 | 3 | 2.8 |
| 3rd quartile | 1670 | 4.74 | 0.84 | 3.17 | 6 | 5.6 |
| 4th quartile | 1985 | 11.78 | 6.38 | 6.17 | 63 | 14.0 |
SD, standard deviation. The column % absent includes the percent of the total number of school days in the semester the mean absence refers to.
