Menéndez-Bergad B, Blum S
Bol Asoc Med P R. 1989 Mar;81(3):95-8.
This study compares age-adjusted stomach cancer incidence and mortality rates, by sex, among Puerto Rican-born residents of New York City (NYC/PR) and Puerto Rico (PR/PR) for the time period 1975 through 1979. One, three, and five year observed survival for cases diagnosed between 1975 and 1977 were compared. The results indicate that age-adjusted stomach cancer incidence rates per 100,000 among NYC/PR males (58.94) and females (27.58) were slightly higher compared to rates among PR/PR males (54.48) and females (25.73), while age-adjusted mortality rates were substantially higher among PR/PR males (46.38 vs. 37.29) and females (22.76 vs. 17.84), although these differences were not statistically significant. Differentials in observed survival consistently favored NYC/PR after one (43% vs. 35%), three (20% vs. 14%), and five years (11% vs. 9%) of follow-up.
本研究比较了1975年至1979年期间，纽约市波多黎各出生居民（NYC/PR）和波多黎各本土居民（PR/PR）按性别调整后的胃癌发病率和死亡率。对1975年至1977年期间确诊病例的1年、3年和5年观察生存率进行了比较。结果表明，NYC/PR男性（58.94）和女性（27.58）每10万人中按年龄调整后的胃癌发病率略高于PR/PR男性（54.48）和女性（25.73），而PR/PR男性（46.38对37.29）和女性（22.76对17.84）的年龄调整后死亡率则显著更高，尽管这些差异无统计学意义。在随访1年（43%对35%）、3年（20%对14%）和5年（11%对9%）后，观察生存率的差异始终有利于NYC/PR。
