Table 1 Clinical and laboratory characteristics of 776 patients with MDS.
Characteristics | ARC < 20 × 109/L (N = 169) | ARC ≥ 20 × 109/L (N = 607) | Total (N = 776) | p value |
|---|---|---|---|---|
Sex, n (%) | 0.046 | |||
Male | 119 (70.4%) | 375 (61.8%) | 494 (63.7%) | |
Female | 50 (29.6%) | 232 (38.2%) | 282 (36.35%) | |
Age, median (range), y | 56 (16–83) | 52 (14–83) | 54 (14–83) | 0.032 |
Age ≥60 years, n (%) | 73 (43.2%) | 199 (32.8%) | 272 (35.1%) | 0.014 |
WHO classification 2016, n (%) | 0.101 | |||
MDS-SLD | 4 (2.4%) | 30 (4.9%) | 34 (4.4%) | |
MDS-RS-SLD | 4 (2.4%) | 18 (3.0%) | 22 (2.8%) | |
MDS-MLD | 71 (42.0%) | 307 (50.6%) | 378 (48.7%) | |
MDS-RS-MLD | 5 (3.0%) | 10 (1.6%) | 15 (1.9%) | |
MDS-EB1 | 39 (23.1%) | 114 (18.8%) | 153 (19.7%) | |
MDS-EB2 | 41 (24.3%) | 104 (17.1%) | 145 (18.7%) | |
MDS with isolated del (5q) | 0 | 7 (1.2%) | 7 (0.9%) | |
MDS-U | 5 (3.0%) | 17 (2.8%) | 22 (2.8%) | |
Hb, median (range), g/L | 64 (31–138) | 83 (38–155) | 78 (31–155) | <0.001 |
WBC, median (range), ×109/L | 2.51 (0.71–21.17) | 2.83 (0.61–20.42) | 2.75 (0.61–21.17) | 0.007 |
ANC, median (range), ×109/L | 0.99 (0.04–13.18) | 1.19 (0–17.37) | 1.15 (0–17.37) | 0.002 |
PLT, median (range), ×109/L | 51 (2–536) | 63 (2–694) | 60 (2–694) | 0.012 |
BM erythroblasts, median (range), % | 20 (0–75) | 35 (0–92.5) | 31 (0–92.5) | <0.001 |
Sum of proerythroblast and basophilic erythroblast(E1), median (range), % | 1 (0–30) | 1.5 (0–18.5) | 1.5 (0–30) | 0.009 |
Sum of polychromatic and orthochromatic erythroblast (E2), median (range), % | 17.5 (0–67) | 32 (0–88) | 29 (0–88) | <0.001 |
Ratio of E1 to E2, median (range) | 0.052 (0–1.75) | 0.05 (0–2) | 0.05 (0–2) | 0.305 |
BM blast, median (range), % | 3.5 (0–19.5) | 2.5 (0–19.5) | 2.5 (0–19.5) | 0.005 |
IPSS-R karyotype, n (%), N = 678 | <0.001 | |||
Very good | 1 (0.7%) | 7 (1.3%) | 8 (1.2%) | |
Good | 69 (48.6%) | 313 (58.4%) | 382 (56.3%) | |
Intermediate | 26 (18.3%) | 138 (25.7%) | 164 (24.2%) | |
Poor | 11 (7.7%) | 29 (5.4%) | 40 (5.9%) | |
Very poor | 35 (24.6%) | 49 (9.1%) | 84 (12.4%) | |
Complex karyotype, n (%) | 39 (27.5%) | 68 (12.7%) | 107 (15.8%) | <0.001 |
IPSS-R risk group, n (%), N = 678 | <0.001 | |||
Very low | 0 | 21 (3.9%) | 21 (3.1%) | |
Low | 21 (14.8%) | 148 (27.6%) | 169 (24.9%) | |
Intermediate | 41 (28.9%) | 175 (32.6%) | 216 (31.9%) | |
High | 30 (21.1%) | 122 (22.8%) | 152 (22.4%) | |
Very high | 50 (35.2%) | 70 (13.1%) | 120 (17.7%) | |
IPSS-R two groups, n (%) | <0.001 | |||
Lower-risk | 40 (28.2%) | 245 (45.7%) | 285 (42.0%) | |
Higher-risk | 102 (71.8%) | 291 (54.3%) | 393 (58.0%) |