题目

跪求帮忙翻译这段文字英文!论文的 希望不要用机器翻译
Data Sets
The1993 National Health Interview Survey (NHIS),17 the NHIS linked to the National Death Index (NDI) through 199518 (the most current nationally representative sources for information on the relationships between health insurance and HRQL and mortality), and the 1996 Medical Expenditure Panel Survey19 (MEPS) were respectively used to estimate HRQL scores, mortality rates, and costs after adjustment for possible confounding. The NHIS is a nationally representative sample of self-reported demographic information, illnesses, conditions, and health status of noninstitutionalized people.17 The NDI contains all deaths in the United States since 1975 and uses personal identifiers to accurately link records to survey data.18,20 Approximately 96% of respondents provided information on all outcomes of interest. In order to avoid biasing estimates toward more favorable cost effectiveness ratios, subjects who reported having no insurance due to poor hea

提问时间：2020-07-27

答案

这个好像是做统计用的,但是里面有很多数字夹杂在一起 17,18,19,20,21,22 搞得我断句有问题,看不明白前后句的关系.要是能把这些数字去掉或者解释下什么意思就好了