Table 2 Comparisons of placental characteristics in cases of sFGR with and without thick AAA
Thick AA group (n =70) | Non-thick AA group (n =65) | P-value | |
|---|---|---|---|
Prevalence of AAA [cases (%)] | 70(100.0) | 51(78.5) | <0.001 |
Prevalence of thick AAA [cases (%)] | 70(100.0) | 0 | <0.001 |
Total number of AAA(n) | 1(1,3) | 1(1,2) | 0.125 |
Total diameter of AAA (mm) | 3.4(2.0,7.1) | 1.4(0.0,3.3) | <0.001 |
Prevalence of AVA [cases (%)] | 65(92.9) | 62(95.4) | 0.720 |
Prevalence of thick AVA [cases (%)] | 31(44.3) | 10(15.4) | <0.001 |
Total number of AVA(n) | 5(1,14) | 3(1,15) | 0.016 |
Total diameter of AVA (mm) | 6.3(0.3,12.0) | 2.5(0.3,17.8) | <0.001 |
Prevalence of VVA [cases (%)] | 19(27.1) | 7(10.8) | 0.017 |
Prevalence of thick VVA [cases (%)] | 17(24.3) | 4(6.2) | 0.004 |
Total number of VVA(n) | 1(1, 2) | 1(1, 2) | 0.821 |
Total diameter of VVA (mm) | 4.2±1.8 | 1.9±1.2 | 0.004 |
Total number of all the anastomoses(n) | 6(1, 15) | 5(1, 16) | 0.022 |
Total diameter of all the anastomoses (mm) | 10.7(3.2,22.4) | 4.4(0.5,19.3) | <0.001 |
Placental territory discordance ratio | 0.26±0.09 | 0.34±0.15 | 0.001 |
Marginal umbilical insertion of normal growth fetuses[cases (%)] | 6(8.6) | 7(10.8) | 0.774 |
Marginal umbilical insertion of restricted growth fetuses[cases (%)] | 56(80.0) | 55(84.6) | 0.509 |
Birthweight discordance / Placental territory discordance | 0.48(0.15,24.07) | 0.73(0.13,3.71) | 0.001 |
Umbilical insertion ratio | 0.58(0.09,1.00) | 0.61(0.08,1.00) | 0.167 |