Research Article
Prevalence of Primary Dysmenorrhoea and Its Impact on Academic Performance among Croatian Students during the COVID-19 Pandemic
Table 1
Demographic and gynaecological health characteristics of participating students.
| | Variable | Students N = 956 |
| | Age (years) | 21.8 (2.0) | | Menarche age (years) | 12.5 (1.3) |
| | Regular menstrual cycle | | Yes | 773 (80.9) | | No | 183 (19.1) | | Menstrual cycle duration (days) | 5.6 (1.0) |
| | Heaviness of menstrual flow | | Light | 60 (6.3) | | Moderate | 508 (53.1) | | Moderately heavy | 327 (34.2) | | Heavy | 61 (6.4) |
| | Family history of dysmenorrhoea | | Yes | 713 (74.6) | | No | 243 (25.4) |
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