Table 1 Clinical characteristics of women with cervical insufficiency and control women
|  | CI group (n = 11) | Controls (n = 4) | P value | CI-preterm group (n = 4) | CI-term group (n = 7) | P value |
|---|---|---|---|---|---|---|
Maternal age (years) | 34.0 (31.0–37.0) | 32.0 (30.3–36.8) | 0.66 | 35.0 (33.3–36.8) | 33.0 (29.0–38.0) | 0.79 |
Gestational age at blood collection (weeks) | 19.4 (17.3–25.0) | 23.0 (19.0–25.2) | 0.41 | 17.8 (16.0–23.3) | 21.1 (19.3–25.1) | 0.23 |
Gestational age at delivery (weeks) | 37.0 (21.2–38.1) | 38.9 (38.2–39.9) | 0.04 | 19.8 (17.4–30.9) | 38.0 (37.0–39.0) | < 0.01 |
Nulliparous, n (%) | 4 (36.3) | 1 (25.0) | 1.00 | 2 (50.0) | 2 (28.6) | 0.58 |
WBC count (cell/mL) | 8450 (6880-11,820) | – |  | 12,275 (9293-13,878) | 7010 (6540-9080) | 0.02 |
Neutrophil count (cell/mL) | 7120 (4620-10,080) | – |  | 10,240 (8055-11,734) | 4720 (4600-7120) | 0.01 |
C-reactive protein (mg/L) | 4.0 (3.2–5.8) |  |  | 4.9 (3.4–15.9) | 3.9 (2.8–5.5) | 0.41 |
Cervical dilation, n (%) | ||||||
 ≥ 3 cm | 7 (63.6) | – |  | 3 (75.0) | 4 (57.1) | 1.00 |
 < 3 cm | 4 (36.4) | – |  | 1 (25.0) | 3 (42.9) | 1.00 |