Breast cancer
| | | | | | |
Pregnancy/age at first birth
|
Nulliparous
|
1.06 (0.82-1.36)
|
Case–control study
|
SeBCS
|
3
|
KNHANES, 2005
|
|
≤23 years
|
1.00
| | |
36
| |
|
24 – 30 year
|
1.13 (0.98-1.32)
| | |
57
| |
|
≥31 year
|
1.27 (0.98-1.66)
| | |
4
| |
Total period of breast feeding
|
Never
|
1.03 (0.87-1.21)
|
Case–control study
|
SeBCS
|
17 (18b)
|
KNHANES, 2005
|
|
≤6 months
|
1.28 (1.07-1.53)
| | |
9 (10b)
| |
|
≥7 months
|
1.00
| | |
70 (72b)
| |
Oral contraceptive use
|
Never
|
1.00
|
Meta-anlaysis
|
SeBCS and [31]
|
82
|
KNHANES, 2005
|
|
Ever
|
1.31 (1.04-1.64)
| | |
18
| |
Hormone replacement therapy use
|
Never
|
1.00
| | |
30 (95c)
|
KNHANES, 2005
|
|
Ever
|
1.16 (0.36-3.78)
|
Meta-anlaysis
|
SeBCS and [31]
|
2 (5c)
| |
Ovarian cancer
| | | | | | |
Pregnancy
|
Nulliparous
|
1.42 (1.31-1.54)
|
Meta-anlaysis
|
Ko-EVE, [32–34, 36, 37, 40–42]
|
3
|
KNHANES, 2005
|
|
Parous
|
1.00
| | |
97
| |
Breast feeding experience
|
Never
|
1.17 (1.02-1.33)
|
Meta-anlaysis
|
Ko-EVE, [36, 39, 42, 43]
|
17 (18b)
|
KNHANES, 2005
|
|
Ever
|
1.00
| | |
79(82b)
| |
Tubal ligation
|
No
|
1.44 (1.33-1.56)
|
Meta-anlaysis
|
Ko-EVE and [44]
|
75 (77b)
|
Ko-EVEd, 2009-2011
|
|
Yes
|
1.00
| | |
22 (23b)
| |
Oral contraceptive use
|
Never
|
1.87 (0.89-3.94)
|
Meta-anlaysis
|
Ko-EVE and [45]
|
82
|
KNHANES, 2005
|
|
Ever
|
1.00
| | |
18
| |