Parameter CMA CMA CMA P-value
Normal
N (%) Abnormal N (%) Total
Isolated SLB 23 (92) 2 (8) 25 0.63
Non-isolated SLB 14 (87.5) 2 (12.5) 16
SLB with non-skeletal structural findings SLB skeletal structural findings 55 (93.2) 7 (100) 4 (6.8) 0 59 7
0.47
Normal fetal echo 34 (97.1) 1 (2.9) 35 0.055
Abnormal fetal echo 0 1 1
Diagnosed >24 GW 23 1 24 0.57
Diagnosed ≤24 GW 16 2 18
Diagnosed >26 GW 22 1 23 0.58
Diagnosed ≤26 GW 17 2 19
Diagnosed >28 GW 18 0 18 0.24
Diagnosed ≤28 GW 21 3 24
Lowest percentile ≤3% Lowest percentile >3% 20 (95.2) 9 (75) 1 (4.8) 3 (25) 21 12
0.125
Lowest percentile ≤1% 6 (100) 0 6 1
Lowest percentile >1% 23 (85.2) 4 27
Maternal age ≥40 years 2 (66.7) 1 (33.3) 3 0.7
Maternal age <40 years 50 (94.3) 3 (5.7) 53
Normal screening test± 25 (92.6) 2 (7.4) 27 0.55
Abnormal screening test± 7 (87.5) 1 (12.5 8