Table 1.
Clinical characteristics of ALL patients diagnosed between 2010 and 2013 in participating public hospitals of Mexico City
| Variables | Total population | Analyzed | p a | |
|---|---|---|---|---|
| yes | no | |||
| n (%) | n (%) | n (%) | ||
| 1254 (100) | 1070 (85.3) | 184 (14.7) | ||
| Sex | ||||
| Male | 684 (54.5) | 595 (55.6) | 89 (48.4) | 0.07 |
| Female | 570 (45.5) | 475 (44.4) | 95 (51.6) | |
| Age (years) | ||||
| < 1 | 34 (2.7) | 28 (2.6) | 6 (3.3) | 0.29 |
| 1–9.9 | 840 (67.0) | 726 (67.9) | 114 (62.0) | |
| ≥ 10 | 380 (30.3) | 316 (29.5) | 64 (38.8) | |
| Socioeconomic status | ||||
| Medium-low | 1043 (85.2) | 902 (85.7) | 141 (82.0) | 0.20 |
| High | 181 (14.8) | 150 (14.3) | 31 (18.0) | |
| WBC count at diagnosis (×109/L) | ||||
| < 10 | 605 (48.2) | 526 (49.2) | 79 (42.9) | 0.18 |
| 10–49.99 | 373 (29.7) | 306 (28.6) | 67 (36.4) | |
| 50–99.99 | 107 (8.5) | 91 (8.5) | 16 (8.7) | |
| ≥ 100 | 169 (13.5) | 147 (13.7) | 22 (12.0) | |
| NCI risk classification | ||||
| Standard | 691 (55.1) | 597 (55.8) | 94 (51.1) | 0.24 |
| High | 563 (44.9) | 473 (44.2) | 90 (48.9) | |
| Immunophenotype | ||||
| Pre-B | 1077 (85.9) | 915 (85.5) | 162 (88.0) | 0.60 |
| B mature | 20 (1.6) | 16 (1.5) | 4 (2.2) | |
| Biphenotypic | 42 (3.3) | 37 (3.5) | 5 (2.7) | |
| T Cell | 115 (9.2) | 102 (9.5) | 13 (7.1) | |
aPearson chi-square