Clinical and pathological characteristics of the study population
| Clinicopathological parameters | Age | Cohort 1 (n=20) | Cohort 2 (n=20) | Total reported |
| Maternal age*/years | 34 (31–39) | |||
| Gestational age*/weeks | 7.3 (6.4–8.2) | |||
| Histological diagnosis: morphology+HER2 D-DISH | PHM (n=20) | Non-molar (n=20) | 40 | |
| Genetic diagnosis: STR genotyping | PHM (n=19) | Non-molar (n=17) | 36 | |
| Genotype | P1P2M1 | PM | ||
| Inferred ploidy | Triploid | Diploid |
*Median (IQR).
D-DISH, dual-colour dual-hapten in situ hybridisation; M, maternal; M1, monogynic; P, paternal; PHM, partial hydatidiform mole; PM, Biparental; P1P2, diandric heterozygous; STR, short tandem repeat.