Troisi, 1998 | USA | Case-control | Cases = 1,669 Controls = 1,505 | Hospital records | Hospital records | Race, education, parity, age, previous spontaneous and induced abortion, site of tumor |
Hsieh, 1999 | Sweden | Nested case-control | Cases = 2318 Control = 10,199 | National Cancer Registry | Swedish National Board | Age, age at first birth |
Melbye, 1999 | Denmark | Cohort | 474,156 | Danish Cancer Registry | Danish Civil Registration System | Age, age at first birth, parity, stillbirths, preterm and term deliveries, history of spontaneous and induced abortion. |
Innes, 2000 | USA | Case-control | Cases = 484 Controls = 2,904 | Computerized Cancer registry | Birth registry data | Woman’s social security number, full maiden, date of birth, race, county of residence |
Vatten, 2002 | Norway | Cohort | 694,657 | Norwegian Cancer Registry | Medical Birth Registry | Age, calendar period of diagnoses, total number of births |
Innes, 2004 | USA | Case-control | Cases = 2,522 Controls = 10,052 | Computerized Cancer registry | Birth registry data | Maternal race (black, non-Hispanic white, Hispanic and other), marital status, maternal education |
Cnattingius, 2005 | Sweden | Cohort | 314,019 | Cancer Register | Swedish National Board of Health And Welfare and Statistics Sweden | Age, placental weight, birth weight, gestational age, infant sex, family situation, smoking habits, mother’s country of birth, height, BMI, pregnancy induced hypertensive diseases, vaginal bleeding in late pregnancy, diabetes mellitus, and parity |
Nechuta, 2010 | USA | Case-control | Cases = 8,251 Controls = 33,004 | Michigan Cancer Surveillance Program’s statewide cancer registry | Michigan Birth Registry | Age at first and last birth, education at first birth, infant’s gender at first and last birth, parity, maternal birth year race, gestational age |
Sanderson, 2012 | USA | Case–control | Cases = 979 Controls = 974 | Rio Grande Valley located At the southern tip of Texas | Rio Grande Valley located At the southern tip of Texas | Age, family history of breast cancer, age at menarche, menopausal status, parity, BMI, use of oral contraceptives, use of hormone replacement therapy, alcohol intake, number of mammograms in past 6 years, physical activity |
Altaha, 2013 | Iraq | Case control | Cases = 100 Controls = 200 | Oncology clinic in AL-Ramadi General Hospital | Al-Anbar governorate | Age of the women in years, residence of women whether urban or rural, marital status, education level, occupation of women, age at menarche, age at first full term delivery, number of live births, number of stillbirths, number of previous abortions before the 24th week of pregnancy, whether it is spontaneous or induced |
Troisi, 2013 | USA | Case-control | 22,758 | Cancer Surveillance System (CSS) of western Washington | Washington State Cancer Registry (WSCR) | Parity, calendar year of delivery, age at delivery, race, ethnicity |
Hajiebrahimi, 2016 | Sweden | Cohort | Cases = 8,327 Controls = 8,327 | Swedish Cancer Register | Medical Birth Register | Age at latest pregnancy, parity, educational level and calendar time of offspring birth, age at latest pregnancy, parity, educational level, calendar year, gestational age |
Swerdlow, 2018 | UK | Cohort | 83,451 | National Health Service Central Registers | National Health Service Central Registers | Age, time since recruitment to cohort, benign breast disease, family history of breast cancer in first-degree relatives, socio-economic score, own birth weight, age at menarche, parity, age at first pregnancy, cumulative duration of breast feeding, current oral contraceptive use before menopause height at age 20, alcohol consumption, age started smoking, pre or post-menopausal BMI and hormones |