| Value | Category | Cases | |
|---|---|---|---|
| 1 | 28 day cycle | 2644 |
55.3%
|
| 2 | 29 - 35 day cycle | 57 |
1.2%
|
| 3 | Irregular | 586 |
12.3%
|
| 4 | Amenorrhea | 1485 |
31.1%
|
| 96 | Other | 10 |
0.2%
|
| Sysmiss | 9120 |