Volinn E, Van Koevering D, Loeser J D
Multidisciplinary Pain Center, University of Washington, Seattle.
Spine (Phila Pa 1976). 1991 May;16(5):542-8. doi: 10.1097/00007632-199105000-00010.
A minority of industrial-back-sprain claimants account for most of the cost of industrial back sprain: those whose disability persists into "chronicity", which is defined as 90 days or more off work. The data in this study demonstrate the effects of socioeconomic factors on chronicity. This analysis is based on State of Washington industrial insurance claims for back sprain. For both men and women, three socioeconomic factors significantly affect the risk of chronicity: age, wage, and the family status of being either widowed or divorced with no children. In addition, the Nam-Powers Socioeconomic Index is significant for men. Wage compensation ratio cannot be shown to be a factor in chronicity.
即那些残疾持续到“慢性期”的人，慢性期定义为缺勤90天或更长时间。本研究中的数据证明了社会经济因素对慢性期的影响。该分析基于华盛顿州工伤背部扭伤保险索赔数据。对于男性和女性而言，三个社会经济因素显著影响慢性期风险：年龄、工资以及丧偶或离异且无子女的家庭状况。此外，南-鲍尔斯社会经济指数对男性有显著影响。工资补偿率并非慢性期的一个影响因素。
