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Table 4 Options offered at varying FTS risk levels

From: Prenatal screening in the era of non-invasive prenatal testing: a Nationwide cross-sectional survey of obstetrician knowledge, attitudes and clinical practice

  No further testing NIPT Invasive testing Termination of Pregnancy
The adjusted risk for T21 is 1:670 on FTS (Intermediate risk) 28 (29.8%) 89 (94.7%) 14 (14.9%) 0 (0%)
The adjusted risk for T21 is 1:86 on FTS (High risk) 11 (11.7%) 73 (77.7%) 81 (86.2%) 0 (0%)
The adjusted risk for T21 is 1:7 on FTS (Very high risk) 11 (11.7%) 20 (21.3%) 92 (97.9%) 2 (2.1%)