Table 1.
Demographic and clinical characteristics at time of consultation
| AIT (N = 1212) |
No-AIT (N = 377) |
Total (N = 1589) |
|
|---|---|---|---|
| Age (years) | |||
| Children (N = 625) | |||
| N available | 489 | 136 | 625 |
| Missing | 0 | 0 | 0 |
| Mean (SD) | 10.7 ± 3.6 | 11.3 ± 3.6 | 10.8 ± 3.6 |
| Median | 10 | 12 | 11 |
| Q1, Q3 | 8, 14 | 8, 14 | 8, 14 |
| Range | 4, 17 | 4, 17 | 4, 17 |
| Adults (N = 938) | |||
| N available | 709 | 229 | 938 |
| Missing | 0 | 0 | 0 |
| Mean (SD) | 32.5 ± 10.4 | 34.0 ± 12.8 | 32.9 ± 11.1 |
| Median | 31 | 30 | 31 |
| Q1, Q3 | 24, 38 | 24, 41 | 24, 39 |
| Range | 18, 76 | 18, 74 | 18, 76 |
| Total (N = 1589)a | |||
| N available | 1198 | 365 | 1563 |
| Missinga | 14 | 12 | 26 |
| Mean (SD) | 23.6 ± 13.6 | 25.5 ± 15.1 | 24.1 ± 14.0 |
| Median | 22 | 24 | 22 |
| Q1,Q3 | 12, 33 | 14, 35 | 12, 33 |
| Range | 4, 76 | 4, 74 | 4, 76 |
| Gender (n, %) | |||
| Children (N = 625) | |||
| N available | 488 | 136 | 624 |
| Missing | 1 | 0 | 1 |
| Male | 298 (61.1 %) | 79 (58.1 %) | 377 (60.4 %) |
| Female | 190 (38.9 %) | 57 (41.9 %) | 247 (39.6 %) |
| Adults (N = 938) | |||
| N available | 709 | 229 | 938 |
| Missing | 7 | 7 | 14 |
| Male | 274 (38.6 %) | 99 (43.2 %) | 373 (39.8 %) |
| Female | 435 (61.4 %) | 130 (56.8 %) | 565 (60.2 %) |
| Total (N = 1589)a | |||
| N available | 1204 | 370 | 1574 |
| Missinga | 8 | 7 | 15 |
| Male | 575 (47.8 %) | 182 (49.2 %) | 757 (48.1 %) |
| Female | 629 (52.2 %) | 188 (50.8 %) | 817 (51.9 %) |
| Duration of AR since diagnosis (years) | |||
| Children (N = 625) | |||
| N available | 451 | 123 | 574 |
| Missing | 38 | 13 | 51 |
| Mean | 2.7 ± 2.9 | 2.6 ± 2.9 | 2.7 ± 2.9 |
| Median | 2.0 | 1.0 | 2.0 |
| Q1, Q3 | 0.5, 4.0 | 0.5, 4.0 | 0.5, 4.0 |
| Range | 0.0, 16.0 | 0.0, 12.9 | 0.0, 16.0 |
| Adults (N = 938) | |||
| N available | 678 | 221 | 899 |
| Missing | 31 | 8 | 39 |
| Mean | 7.2 ± 8.7 | 6.9 ± 8.1 | 7.1 ± 8.5 |
| Median | 4.0 | 3.0 | 3.0 |
| Q1, Q3 | 1.0, 10.0 | 0.8, 10.0 | 1.0, 10.0 |
| Range | 0.0, 55.0 | 0.0, 40.0 | 0.0, 55.0 |
| Total (N = 1589)a | |||
| N available | 1136 | 353 | 1489 |
| Missinga | 76 | 24 | 100 |
| Mean | 5.4 ± 7.3 | 5.3 ± 7.0 | 5.4 ± 7.2 |
| Median | 3.0 | 2.0 | 2.0 |
| Q1, Q3 | 0.8, 7.0 | 0.5, 9.0 | 0.7, 7.0 |
| Range | 0.0, 55.0 | 0.0, 40.0 | 0.0, 55.0 |
aThe total population corresponding to the analysis population (N = 1589) included patients with missing age (N = 26)