Table 1 Characteristics of subjects included in the study and clinical grouping
From: Discovery of non-invasive biomarkers for the diagnosis of endometriosis
| Â | Control | Pain | Endometriosis |
|---|---|---|---|
Number | 21 | 21 | 45 |
Age (years) | Â | Â | Â |
 Mean (SD) | 37.5 (8.5) | 32.2 (6.5) | 35.9 (5.8) |
 Median (range) | 36 (20–51) | 33 (19–48) | 36.0 (20–52) |
Symptoms | Â | Â | Â |
 Subfertility | 4 | 8 | 16 |
 Pain | 0 | 22 | 38 |
Cycle phase | Â | Â | Â |
 Proliferative (1) | 10 | 9 | 13 |
 Secretory (2) | 9 | 12 | 26 |
 Inactive (0) | 2 | 0 | 6 |