Complete hydatidiform mole in Hawaii: an epidemiological study.

Area of Science:

• Gynecology
• Epidemiology
• Obstetrics

Background:

• Hydatidiform moles are abnormal pregnancies with varying types.
• Understanding the epidemiology of these moles is crucial for risk assessment.

Purpose of the Study:

• To analyze the incidence and risk factors of hydatidiform moles in Hawaii.
• To investigate the role of maternal and paternal factors in complete mole development.

Main Methods:

• A 14-year retrospective analysis (1968-1981) of 278 molar pregnancies in Hawaii.
• Pathological review of all cases to classify mole types.
• Case-control epidemiological study focusing on complete moles.

Main Results:

• Complete moles constituted 69.4% of cases, partial 24.5%, and nonmolar 6.1%.
• Maternal age (under 20, over 40) and Oriental ancestry (Japanese, Filipino) were significant risk factors for complete moles.
• No significant differences were observed based on paternal age, race, socioeconomic status, or reproductive history.

Conclusions:

• Maternal age and race are key epidemiological factors in complete hydatidiform mole occurrence.
• Incidence rates for complete moles varied widely (1 in 150 to 1 in 2,000 pregnancies) based on age and race.
• Further research may elucidate other contributing factors to hydatidiform mole etiology.