Table 1.
Summary of results for fetuses with increased NT thickness.
| NT (mm) | iNT-alone (%) | iNT + SM/SA(%) | iNT + sSA(%) | Cardiac ultrasound anomaly | Total | |
|---|---|---|---|---|---|---|
| (+) | (−) | |||||
| 2.5–2.9 | 239 (81.6) | 42 (14.3) | 12 (4.1) | 14 (4.8) | 279 (95.2) | 293 (14.5) |
| 3.0–3.4 | 470 (84.2) | 63 (11.3) | 25 (4.5) | 27 (4.8) | 531 (95.2) | 558 (27.8) |
| 3.5–4.4 | 462 (76.8) | 108 (17.9) | 32 (5.3) | 46 (7.6) | 556 (92.4) | 602 (30.0) |
| 4.5–5.4 | 171 (67.3) | 51 (20.1) | 32 (12.6) | 26 (10.2) | 228 (89.8) | 254 (12.6) |
| 5.5–6.4 | 70 (54.7) | 28 (21.9) | 30 (23.4) | 15 (11.7) | 113 (88.3) | 128 (6.4) |
| ≥6.5 | 58 (33.2) | 20 (11.4) | 97 (55.4) | 29 (16.6) | 146 (83.4) | 175 (8.7) |
| Total | 1,470 (73.1) | 312 (15.5) | 228 (11.4) | 157 (7.8) | 1853 (92.2) | 2010 |
NT, nuchal translucency; iNT, increased nuchal translucency; SM, soft mark; SA, structural abnormalities; sSA, severe structural abnormalities; (+), with cardiac ultrasound anomaly; (−), without cardiac ultrasound anomaly.