为了解城区居民的患病情况,于1990年对兰州市城关区743户2560人进行了家庭调查,结果表明两同患病率为187.11‰),女性患病率(204.75‰)高于男性(168.79‰)。人群中,患病率较高的有离退休人员、妇女、中年以上知识分子,他们是防治重点。与患病有关的因素有季节、年龄、教育程度、职业与人均收入。 In order to understand the prevalence of urban residents, a household survey was conducted in 743 households of 2560 people in Chengguan District, Lanzhou City in 1990. The results showed that the two prevalence rates were 187.11 ‰), and the prevalence of women (204.75 ‰) was higher than that of men ( 168.79 ‰). Among the population, those with higher prevalence are retirees, women, and middle-aged or older intellectuals who are the focus of prevention and control. Factors related to illness include season, age, education, occupation, and per capita income.