Table 1.
Characteristics of Marquette Natural Family Planning User by Reproductive Category.
| User Characteristics | Regular Cycles (n = 402) | Postpartum/Breastfeeding (n = 741) | Irregular Cycles (n = 68) |
|---|---|---|---|
| Age of the women | 28.21 (SD = 5.59) | 30.17 (SD = 4.32) | 32.36 (SD = 7.74) |
| Months of use | 5.83 (SD = 4.29) | 8.35 (SD = 4.14) | 6.76 (SD = 4.36) |
| Fertility monitoring | |||
| CMM only | 95 (23.6 percent) | 11 (1.5 percent) | 6 (8.8 percent) |
| EHFM only | 65 (16.2 percent) | 242 (32.7 percent) | 23 (33.8 percent) |
| CMM + EHFM | 107 (26.6 percent) | 154 (20.8 percent) | 20 (29.4 percent) |
| LH plus | 126 (31.3 percent) | 327 (44.1 percent) | 15 (22.1 percent) |
| Missing | 9 (2.2 percent) | 7 (0.9 percent) | 4 (5.9 percent) |
| Total unintended pregnancies | 6 (1.5 percent) | 34 (4.6 percent) | 1 (1.5 percent) |
| Unintended pregnancies due to method failure | 0 (0 percent) | 10 (1.3 percent) | 0 (0 percent) |
| Unintended pregnancies due to user behavior | 4 (1.0 percent) | 18 (2.4 percent) | 1 (1.5 percent) |
| Unintended pregnancies with reason unknown | 2 (0.5 percent) | 6 (0.8 percent) | 0 (0 percent) |
Note: N =1,221; n = 1,201 due to missing data. CMM = cervical mucus monitoring; EHFM = electronic hormonal fertility monitor; LH = luteinizing hormone.