Rolón P A, de Lopez B H
Br J Obstet Gynaecol. 1977 Nov;84(11):862-4. doi: 10.1111/j.1471-0528.1977.tb12509.x.
A total of 227 hydatidiform moles was recorded in Paraguay over a 10-year period (1960 to 1969). Using demographic studies, the annual incidence of hydatidiform moles was calculated as 0.229 per 1000 pregnancies or 1 per 4369 pregnancies, with the highest incidence occurring at the extremes of reproductive life.
在10年期间(1960年至1969年),巴拉圭共记录了227例葡萄胎。通过人口统计学研究,计算出葡萄胎的年发病率为每1000次妊娠0.229例,即每4369次妊娠1例,最高发病率出现在生殖年龄的两端。