Powell K E, Meador M P, Farer L S
Am J Public Health. 1981 Nov;71(11):1223-7. doi: 10.2105/ajph.71.11.1223.
Two recent surveys of selected states and cities suggest that foreign-born persons account for approximately 15 per cent of the new cases of tuberculosis reported annually in the areas surveyed. In both surveys the largest number of foreign-born persons came from the Western Hemisphere, the next largest from Asia. The largest number of foreign-born persons with tuberculosis are in the 15-29 year age group, presumably because most entering aliens are in this age group. Among persons with tuberculosis, a larger per cent of foreign-born patients have extrapulmonary disease than do native-born patients. About 50 per cent of the foreign-born persons with tuberculosis entered the United States within the five years prior to onset of disease. Within the United States, significant inter-area variation exists in the proportion of persons with tuberculosis who are foreign-born and in countries of origin of these persons.
最近对某些州和城市进行的两项调查表明，在接受调查地区每年报告的结核病新病例中，外国出生者约占15%。在两项调查中，外国出生者人数最多的来自西半球，其次是亚洲。患结核病的外国出生者人数最多的是15至29岁年龄组，大概是因为大多数入境外国人都在这个年龄组。在结核病患者中，外国出生患者患肺外疾病的比例高于本土出生患者。约50%患结核病的外国出生者在发病前五年内进入美国。在美国，外国出生的结核病患者比例及其原籍国在不同地区存在显著差异。
