Table 2.
Endometrial thickness and the corresponding menstrual status
| Variable | N | Quantile (95% confidence interval) | ||||
|---|---|---|---|---|---|---|
| 5% Quantile | 10% Quantile | 50% Quantile: Median | 90% Quantile | 95% Quantile | ||
| All participants | 797 | 2.9 (2.5–3.2) | 3.8 (3.5–4.1) | 8.6 (8.3–8.8) | 13.8 (13.3–14.3) | 15.8 (15.1–17.1) |
| Second half of normal cycle | 339 | 4.1 (3.3–4.8) | 5.2 (4.7–6.1) | 9.6 (9.3–10.2)a | 14.2 (13.8–15.4) | 16.5 (15.1–18.2) |
| Irregular cycle | 145 | 2.4 (1.2–3.8) | 4.1 (2.3–4.8) | 8.9 (7.8–10.1)b | 15.5 (14.5–19.8) | 19.0 (15.7–24.6) |
| Polymenorrhea | 19 | 3.8 (3.8–24.4) | 4.4 (3.8–24.4) | 8.8 (7.6–11.7) | 14.9 (3.8–24.4) | 24.4 (3.8–24.4) |
| Oligomenorrhea | 18 | 1.7 (1.7–21.7) | 2.4 (1.7–4.4) | 7.8 (4.9–10.3) | 12.4 (10.3–21.7) | 21.7 (11.0–21.7) |
| First half of normal cycle | 233 | 2.8 (2.4–3.1) | 3.4 (3.0–3.8) | 6.8 (5.9–7.6)a , b | 11.8 (10.8–13.0) | 13.2 (12.1–14.0) |
| Amenorrhea | 43 | 1.4 (0.0–16.2) | 2.1 (0.0–2.9) | 5.1 (4.2–7.5)a , b | 12.8 (9.4–16.2) | 13.4 (0.0–16.2) |
a
Second half, compared to first half, amenorrhea (P < .0001).
b
Irregular cycle, compared to first half, amenorrhea (P < .0001).