Table 1. Characteristics of studies included in the meta-analysis.
| Study year | Study period/country | Mean age (years) | FIGO stage | Histological type | Median follow-up period (months) | Peritoneal cytology | Sample size | Recurrence | LN metastasis | Adjusted variables |
|---|---|---|---|---|---|---|---|---|---|---|
| Kuji et al, 2014 | Japan/2002–2010 | 49.3 (20–75) | 1B (179) 2A (25) 2B (24) | SCC (139) ADC (76) ASC (13) | 51 (4–115) | Positive | Total (9) | SCC (1) ADC+ASC (5) Total (6) | Total (6) | Peritoneal cytology, histological type, LN metastasis, LVSI, parametrium invasion, deep stromal invasion, uterine body invasion, ovarian metastasis |
| Negative | Total (219) | ADC+ASC (11) | Total (51) | |||||||
| Kasamatsu et al, 2009 | Japan/1984–2003 | 48 | 1B–2B | ADC (107) | 72 (1–281) | Positive | ADC (16) | ADC (8) | ADC (5) | Peritoneal cytology, LN metastasis, LVSI, tumour size, depth in cervical wall, parametrium invasion, infiltration to vaginal, ovarian metastasis, histlogical grade |
| Negative | ADC (91) | ADC (16) | ADC (17) | |||||||
| Takeshima et al, 1997 | Japan/1982–1993 | NM | 1B–2B | SCC ADC ASC | (36–168) | Positive | SCC (4) ADC+ASC (15) Total (19) | SCC (1) ADC+ASC (7) Total (8) | ADC+ASC (7) | Age, peritoneal cytology, LN metastasis, vessel permeation, muscle invasion, ovarian metastasis, parametrial invasion, stage |
| Negative | SCC (238) ADC+ASC (117) Total (355) | SCC (39) ADC+ASC (27) Total (66) | ADC+ASC (27) | |||||||
| Kashimura et al, 1997 | Japan/1978–1994 | NM | 1B–2B | SCC ADC | NM | Positive | SCC (12) ADC (10) Total (22) | NR | SCC (8) ADC (7) Total (15) | Age, histology, LN metastasis, para-aortic LN metastasis, ovarian metastasis, peritoneal cytology |
| Negative | SCC (215) ADC (49) Total (264) | NR | SCC (59) ADC (13) Total (72) | |||||||
| Ito and Noda, 1992 | Japan/1978–1994 | (34–77) | 2 | SCC ADC ASC | (0–70) | Positive | Total (10) | Total (4) | Total (8) | |
| Negative | Total (93) | Total (6) | Total (32) | |||||||
| Delgado et al, 1989 | US/1981–1984 | NM | 1 | SCC | NM | Positive | SCC (2) | NR | SCC (0) | Age, LVSI, depth of invasion, parametrial invasion |
| Negative | SCC (625) | NR | SCC (97) |
Abbreviations: ADC=adenocarcinoma; ASC=adenosquamous carcinoma; FIGO=International Federation of Gynecology and Obstetrics; LN=lymph node; LVSI=lymphovascular space invasion; NM=not mentioned; NR=not reported; SCC=squamous cell carcinoma.