Daeth y panel a’i dimau amlddisgyblaethol annibynnol i’r penderfyniad bod prif ffactorau addasadwy yn bresennol a’u bod wedi cyfrannu’n sylweddol at y canlyniadau mewn tua traean o’r adolygiadau mamolaeth a gynhaliwyd, gan olygu y gallai dull rheoli gwahanol fod wedi arwain at ganlyniad gwahanol i’r mamau a/neu’r babanod. Triniaethau annigonol neu amhriodol a diagnosis neu adnabod ffactor risg uchel oedd y materion a gyfrannodd at yr achosion hyn amlaf. Adleisiwyd hyn yn y categori marw-enedigaethau.
The panel and its independent multidisciplinary teams determined thatin around a third of the maternity reviews conducted, major modifiable factors were present which contributed significantly, meaning different management may have resulted in a different outcome for the mothers and/or babies. Inadequate or inappropriate treatment and the diagnosis or recognition of a high-risk factor were the issues which most often contributed. This was echoed in the stillbirth category.