Department for Rehabilitation Medicine, Coordination Centre for Applied Rehabilitation Research, Hannover Medical School, Hannover, Germany.
J Rehabil Med. 2012 Nov;44(11):980-7. doi: 10.2340/16501977-1063.
To evaluate the predictive value of the Work Ability Index (WAI) for different indicators of the need for rehabilitation at 1-year follow-up.
Cohort study.
Data were obtained from the Second German Sociomedical Panel of Employees, a large-scale cohort study with postal surveys in 2009 and 2010.
A total of 457 women and 579 men were included. Confirmatory factor analysis confirmed the one-dimensionality of the WAI. Regression analyses showed that poor and moderate baseline WAI scores were associated with lower health-related quality of life and more frequent use of primary healthcare 1 year later. Subjects with poor baseline work ability had 4.6 times higher odds of unemployment and 12.2 times higher odds of prolonged sick leave than the reference group with good or excellent baseline work ability. Moreover, the odds of subjectively perceived need for rehabilitation, intention to request rehabilitation and actual use of rehabilitation services were 9.7, 5.7 and 3 times higher in the poor baseline WAI group and 5.5, 4 and 1.8 times higher in the moderate baseline WAI group, respectively. A WAI score ≤ 37 was identified as the optimal cut-off to predict the need for rehabilitation.
The WAI is a valid screening tool for identifying the need for rehabilitation.
评估工作能力指数（WAI）在预测 1 年随访时不同康复需求指标方面的价值。
队列研究。
数据来自第二次德国社会医学员工队列研究，这是一项大规模的队列研究，于 2009 年和 2010 年进行了邮政调查。
共纳入 457 名女性和 579 名男性。验证性因子分析证实了 WAI 的一维性。回归分析表明，基线 WAI 评分较差和中等与 1 年后健康相关生活质量较低和更频繁地使用初级保健相关。基线工作能力较差的受试者失业的可能性是基线工作能力良好或优秀的参考组的 4.6 倍，病假延长的可能性是参考组的 12.2 倍。此外，基线 WAI 评分较差组主观感知康复需求、申请康复意愿和实际使用康复服务的可能性分别是基线 WAI 评分良好或优秀组的 9.7、5.7 和 3 倍，基线 WAI 评分中等组分别是 5.5、4 和 1.8 倍。WAI 评分≤37 被确定为预测康复需求的最佳临界点。
WAI 是一种有效的筛选工具，可用于识别康复需求。
