Leverett D H, Hooper S D, Russell W N
Am J Public Health. 1977 Dec;67(12):1173-8. doi: 10.2105/ajph.67.12.1173.
A study was conducted of family records and claim forms of a company-sponsored dental plan to determine the effects of several demographic variables on utilization of the plan and on patterns of expenditure. The plan was non-contributory on the part of the employees. Individual utilization of the plan (at least once during the study year) closely approximated the average for the entire U.S. population. Salaried employees, and families, were more likely to use the plan than hourly-paid employees and families. High income families were more likely than lower income families to use the plan. Most of the independent variables (income, age, hourly versus salaried) correlated with utilization patterns in a predictable manner. A notable exception was when one looked from one division of the corporation to another, with 25 per cent of families in one division using the plan in the study year, compared to 90 per cent at another division. The reasons for these dramatic differences may be related, at least in part, to institutional factors rather than to patient behavior, and further study is indicated.
一项针对公司赞助的牙科计划的家庭记录和理赔表格展开了研究，以确定若干人口统计学变量对该计划使用情况及支出模式的影响。该计划由员工无需缴费。个人对该计划的使用情况（在研究年度至少使用过一次）与美国全体人口的平均使用情况非常接近。受薪员工及其家庭比小时工及其家庭更有可能使用该计划。高收入家庭比低收入家庭更有可能使用该计划。大多数自变量（收入、年龄、小时工与受薪员工）与使用模式呈现出可预测的相关性。一个显著的例外是，当从公司的一个部门与另一个部门进行对比时，在研究年度，一个部门中有25%的家庭使用该计划，而另一个部门则为90%。这些巨大差异的原因可能至少部分与制度因素而非患者行为有关，有必要进一步研究。
