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. 2023 May 8;13(9):1659. doi: 10.3390/diagnostics13091659

Table 5.

The maximum difference between the relative risk (RR) in the two groups was obtained by considering the cut-off at 8 + 4 weeks.

Study Group: SA Control Group: TOP
Gestational Age Cervix Chorionic Villi Gestational Age Cervix Chorionic Villi
Weeks n Positive Negative Positive Negative Weeks n Positive Negative Positive Negative
6–8 16 9 7 13 3 7–8 8 2 6 0 8
9–10 22 3 19 0 22 9–10 17 8 9 4 13
11–12 12 5 7 0 12 11–12 25 7 18 5 20