Nabe-Nielsen Kirsten, Fallentin Nils, Christensen Karl B, Jensen Jette N, Diderichsen Finn
The National Research Centre for the Working Environment, Copenhagen, Denmark.
BMC Musculoskelet Disord. 2008 Apr 29;9:61. doi: 10.1186/1471-2474-9-61.
Low back pain (LBP) is a frequent health complaint among health care personnel. Several work tasks and working postures are associated with an increased risk of LBP. The aim of this study was to compare two self-reported measures of physical demands and their association with LBP (the daily number of patient handling tasks and Hollmann's physical load index).
A questionnaire was distributed to 535 hospital employees in a psychiatric and an orthopedic ward in a Danish hospital. Of these 411 (77%) filled in and returned the questionnaire. Only the 373 respondents who had non-missing values on both measures of physical demands were included in the analyses. The distribution of physical demands in different job groups and wards are presented, variance analysis models are employed, and logistic regression analysis is used to analyze the association between measures of physical demands and LBP.
In combination, hospital ward and job category explained 56.6% and 23.3% of the variance in the self-reported physical demands measured as the daily number of patient handling tasks and as the score on the physical load index, respectively. When comparing the 6% with the highest exposure the prevalence odds ratio (POR) for LBP was 5.38 (95% CI 2.03-14.29) in the group performing more than 10 patient handling tasks per day and 2.29 (95% CI 0.93-5.66) in the group with the highest score on the physical load index.
In specialized hospital wards the daily number of patient handling tasks seems to be a more feasible measure of exposure when assessing the risk of LBP compared to more advanced measures of physical load on the lower lumbar spine.
下背痛（LBP）是医护人员中常见的健康问题。多项工作任务和工作姿势与LBP风险增加相关。本研究的目的是比较两种自我报告的体力需求测量方法及其与LBP的关联（每日患者搬运任务数量和霍尔曼体力负荷指数）。
向丹麦一家医院的精神科和骨科病房的535名医院员工发放了问卷。其中411人（77%）填写并返回了问卷。分析仅纳入在两种体力需求测量方法上均无缺失值的373名受访者。呈现了不同工作群体和病房中体力需求的分布情况，采用方差分析模型，并使用逻辑回归分析来分析体力需求测量方法与LBP之间的关联。
综合来看，医院病房和工作类别分别解释了以每日患者搬运任务数量和体力负荷指数得分衡量的自我报告体力需求方差的56.6%和23.3%。当将暴露程度最高的6%人群进行比较时，每天进行超过10次患者搬运任务的组中LBP的患病率比值比（POR）为5.38（95%可信区间2.03 - 14.29），体力负荷指数得分最高的组中为2.29（95%可信区间0.93 - 5.66）。
在专科医院病房中，与评估下腰椎体力负荷的更先进方法相比，每日患者搬运任务数量在评估LBP风险时似乎是一种更可行的暴露测量方法。
