Table 1.
Selected demographic and clinical characteristics of ovarian cancer patients according to ABO blood type
| Variables | ABO blood type | P value † | |||
|---|---|---|---|---|---|
| Type O | Type A | Type B | Type AB | ||
| No. of patients | 172 | 196 | 208 | 51 | |
| Age at diagnosis (years), Mean (IQR) | 52 (47.5-59) | 52 (47-59) | 54 (47-61) | 51 (46-59) | 0.82 |
| Follow-up time (years), Median (IQR) | 3.1 (2.2-4.5) | 3.0 (2.2-4.2) | 3.0 (2.1-4.1) | 3.0 (2.5-3.6) | 0.76 |
| Vital status (%) | 0.58 | ||||
| Alive | 111 (64.5) | 119 (60.7) | 129 (62.0) | 36 (70.6) | |
| Died | 61 (35.5) | 77 (39.3) | 79 (38.0) | 15 (29.4) | |
| Recurrence status (%) | 0.91 | ||||
| Yes | 75 (43.6) | 79 (40.3) | 86 (41.4) | 20 (39.2) | |
| No | 97 (56.4) | 117 (59.7) | 122 (58.7) | 31 (60.8) | |
| Histological type (%) | 0.87 | ||||
| Serous | 119 (69.2) | 143 (73) | 150 (72.1) | 37 (72.6) | |
| Non-serous | 53 (30.8) | 53 (27) | 58 (27.9) | 14 (27.5) | |
| Comorbidity (%) | 0.67 | ||||
| No | 86 (50) | 108 (55.1) | 110 (52.9) | 24 (47.1) | |
| Yes | 86 (50) | 88 (44.9) | 98 (47.1) | 27 (52.9) | |
| Performance status (%) | 0.08 | ||||
| 0 | 1 (0.6) | 0 | 1 (0.5) | 2 (3.9) | |
| 1 | 49 (28.5) | 47 (24) | 48 (23) | 12 (23.5) | |
| 2 | 87 (50.5) | 94 (48) | 105 (50.5) | 31 (60.8) | |
| ≥3 | 35 (20.4) | 55 (28) | 54 (26) | 6 (11.8) | |
| FIGO stage (%) | 0.91 | ||||
| I | 55 (32) | 54 (27.6) | 53 (25.5) | 12 (23.5) | |
| II | 22 (12.8) | 29 (14.8) | 32 (15.4) | 8 (15.7) | |
| III | 84 (48.8) | 100 (51) | 104 (50) | 28 (54.9) | |
| IV | 11 (6.4) | 13 (6.6) | 19 (9.1) | 3 (5.9) | |
| Residual disease (%) | 0.97 | ||||
| None detectable | 112 (65.1) | 122 (62.2) | 131 (63) | 30 (58.8) | |
| ≤ 1 cm | 31 (18) | 34 (17.4) | 38 (18.3) | 11 (21.6) | |
| > 1 cm | 29 (16.9) | 40 (20.4) | 39 (18.7) | 10 (19.6) | |
| Ascites (%) | 0.23 | ||||
| No | 68 (39.5) | 87 (44.4) | 90 (43.3) | 15 (29.4) | |
| Yes | 104 (60.5) | 109 (55.6) | 118 (56.7) | 36 (70.6) | |
| Grading (%) | 0.10 | ||||
| Grade 1 | 14 (8.1) | 7 (3.6) | 12 (5.8) | 3 (5.9) | |
| Grade 2 | 48 (27.9) | 43 (21.9) | 67 (32.2) | 11 (21.6) | |
| Grade 3 | 110 (64.0) | 146 (74.5) | 129 (62) | 37 (72.6) | |
IQR, inter-quartile range.
† The Mann-Whitney U and Chi-square test were used for comparing continuous and category variables, respectively.