Table 1 Respondent characteristics related to menstrual history (n = 156)
From: Gastrointestinal symptoms before and during menses in healthy women
Menstrual information | Mean (SD) |
|---|---|
Age at first menses | 12.9 (1.8) |
Menses duration in days | 5.7 (3.3) |
n (%) | |
Cycle duration | |
<25 days | 20 (13) |
25–35 days | 106 (68) |
>35 days | 30 (19) |
History of painful menses | 82 (53) |
Using medicinal contraception | 52 (33) |