Table 1.
Characteristics of the 18 case-control studies included in the pooled analysis of level of education and stage at diagnosis of ovarian cancer.
| Region | Study | Study acronym |
Study period | Cases N |
Women diagnosed at advanced tumour stagea (%) |
Study type | Age range |
|---|---|---|---|---|---|---|---|
| Australia | Australian Ovarian Cancer Study and Australian Cancer Study (Ovarian Cancer) |
AUS | 2002–2006 | 1,073 | 950 (88.5) | Population-based | 20–80 |
| Europe | German Ovarian Cancer Study | GER | 1993–1996 | 219 | 178 (81.3) | Population-based | 21–75 |
| The Danish Malignant Ovarian Tumor Study | MAL | 1994–1999 | 551 | 478 (86.8) | Population-based | 32–80 | |
| Nijmegen Ovarian Cancer Study | NTH | 1989–2006 | 254 | 172 (67.7) | Hospital-based | 23–83 | |
| Polish Ovarian Cancer Case-Control Study | POL | 2000–2003 | 183 | 112 (61.2) | Population-based | 27–74 | |
| Study of Epidemiology and Risk Factors in Cancer Heredity |
SEA | 1998–2010 | 917 | 522 (56.9) | Population-based | 22–74 | |
| UK Ovarian Cancer Population Study | UKO | 2006–2010 | 524 | 443 (84.5) | Hospital-based | 19–89 | |
| United States (US) | Connecticut Ovarian Cancer Study | CON | 1998–2003 | 296 | 248 (83.8) | Population-based | 36–81 |
| Diseases of the Ovary and their evaluation | DOV | 2002–2005 | 592 | 504 (85.1) | Population-based | 35–74 | |
| Hawaii Ovarian Cancer Case-Control Study | HAW | 1993–2008 | 681 | 486 (71.4) | Population-based | 24–87 | |
| Novel Risk Factors and Potential Early Detection | HOP | 2003–2009 | 663 | 552 (83.3) | Population-based | 25–91 | |
| Markers for Ovarian Cancer | |||||||
| Mayo Clinic Ovarian Cancer Case-Control | MAY | 2000–2009 | 493 | 450 (91.3) | Clinic-based | 21–91 | |
| Control Study | |||||||
| North Carolina Ovarian Cancer study | NCO | 1999–2008 | 849 | 723 (85.2) | Population-based | 22–74 | |
| New England Case-Control Study | NEC | 1992–2003 | 827 | 570 (68.9) | Population-based | 21–77 | |
| New Jersey Ovarian Cancer Study | NJO | 2002–2008 | 230 | 184 (80.0) | Population-based | 30–81 | |
| Family Registry for Ovarian Cancer and Genetic Epidemiology of Ovarian Cancer |
STA | 1997–2001 | 488 | 376 (77.0) | Population-based | 21–64 | |
| University California Irvine Ovarian Study | UCI | 1993–2005 | 384 | 310 (80.7) | Population-based | 21–86 | |
| Los Angeles County Case-Control Studies of Ovarian Cancer |
USC | 1993–2005 | 1,377 | 1,073 (77.9) | Population-based | 20–84 | |
| TOTAL | 10,601 | 8,331 (78,6) | 19–91 |
a
Women diagnosed with regional or distant stage