Reproductive Characteristics
The percentages for each characteristic may not add up to 100 due to rounding. The number of missing or not applicable were excluded from the total (N = 50,884) for calculating of percentages.
| Age (in years) when Participant's Periods Started | Number of Participants | Percentage |
|---|---|---|
|
11 or younger 12-13 14 or older Never menstruated Missing |
10,405 28,525 11,909 7 38 |
20% 56% 23% -- -- |
| Parity (number of live births) Reported by Participant | Number of Participants | Percentage |
|---|---|---|
|
0 live births 1 live birth 2 live births 3 live births 4 live births 5 or more live births Missing |
9,246 7,442 18,868 10,124 3,482 1,687 35 |
18% 15% 37% 20% 7% 3% -- |
| Age (in years) of Participant at First Live Birth | Number of Participants | Percentage |
|---|---|---|
|
19 or younger 20-24 25-29 30-34 35 or older No Live Births Missing |
6,822 15,892 11,525 5,225 2,130 9,246 44 |
16% 38% 28% 13% 5% -- -- |
| Participant Reports Breastfeeding Child/Children | Number of Participants | Percentage |
|---|---|---|
|
Yes: breastfed No: never breastfed Missing |
28,945 21,904 35 |
57% 43% -- |
| Participant Reports Use of Hormonal Birth Control | Number of Participants | Percentage |
|---|---|---|
|
Yes: used No: never used Missing |
43,122 7,724 38 |
85% 15% -- |
| Menopausal Status of Participant at Time of Baseline Enrollment | Number of Participants | Percentage |
|---|---|---|
|
Natural menopause Surgical menopause Premenopause Unknown/missing |
20,377 12,357 18,120 30 |
40% 24% 36% -- |
|
Participant Reports Use of Hormone Replacement Therapy (estrogen/progesterone) |
Number of Participants | Percentage |
|---|---|---|
|
Yes: used No: never used Missing |
23,050 27,675 159 |
45% 55% -- |
|