Table 1. Clinicopathologic features of patients.
| Characteristics | Categories | Patients (n = 133) |
| Median age at diagnosis, years (range) | - | 48.3 (15.8–89.0) |
| Ethnic group | Chinese | 94 (71%) |
| Malays | 21 (16%) | |
| Indians | 6 (5%) | |
| Others | 12 (9%) | |
| Smoking history (n = 52) | Non-smoker/Ever-smoker | 38 (73%)/14 (27%) |
| Family history of cancer (n = 59) | Negative/Positive | 45 (76%)/14 (24%) |
| Presence of comorbidities (n = 126) | No/Yes | 48 (38%)/78 (62%) |
| Stage at diagnosis (n = 125) | I | 100 (80%) |
| II | 7 (6%) | |
| III | 15 (12%) | |
| IV | 3 (2%) | |
| Tumour differentiation/grade (n = 117) | well | 71 (61%) |
| moderate | 34 (29%) | |
| poor | 12 (10%) | |
| Tumour type (n = 130) | Mixed borderline/Non-borderline | 50 (38%)/80 (62%) |
| Ovarian surface involvement (n = 122) | No/Yes | 75 (61%)/47 (39%) |
| Lymphovascular invasion (n = 126) | No/Yes | 118 (94%)/8 (6%) |
| Median CA125, U/mL (range) (n = 117) | - | 71.3 (3.0–8812.5) |
| Received OGD (n = 126) | No/Yes | 107 (85%)/19 (15%) |
| Received colonoscopy (n = 126) | No/Yes | 102 (81%)/24 (19%) |
| Received appendectomy (n = 127) | No/Yes | 62 (49%)/65 (51%) |
| Received omentectomy (n = 128) | No/Yes | 10 (8%)/118 (92%) |
| Received chemotherapy (n = 124) | No/Yes | 68 (55%)/56 (45%) |
| Received adjuvant chemotherapy (n = 123) | No/Yes | 83 (67%)/40 (33%) |
Abbreviation: OGD, oesophagogastroduodenoscopy.