Table 2 Characteristics of general population - reproductive history
From: The complexity of premenstrual dysphoric disorder - risk factors in the population of Polish women
Variable | N | % |
|---|---|---|
Menarche (years) (x ± SD) | 13.6 ± 1.3 | |
Duration of menstrual cycle (days) (x ± SD) | 28.0 ± 3.0 | |
Duration of menstruation (days) (x ± SD) | 4.9 ± 1.1 | |
History of previous pregnancies | 867 | 56.5% |
Number of previous pregnancies (median + lower/upper quartile) | 1 + 1/2 | |
Parity (median + lower/upper quartile) | 0 + 0/0 | |
Miscarriages | 115 | 7.7% |
Breast feeding | 719 | 58.5% |