PURPOSE The primary purpose was to examine the measurement properties of the PROMIS-29 to better understand its use in patients undergoing spine surgery. A secondary objective was to calculate a predictive equation between PROMIS-29 and ODI, to allow clinicians and researchers to determine a predicted ODI score based on PROMIS short form scores. METHODS 719 patients with PROMIS v2.0 and ODI responses were queried from the quality outcomes database. Validity was assessed using coefficient omega, ceiling/floor effects, and confirmatory factor analysis. Multivariable regression predicting ODI scores from PROMIS-29 domains was used to create a predictive equation. Predicted ODI scores were plotted against ODI scores to determine how well PROMIS-29 domains predicted ODI. RESULTS Results showed good reliability and validity of PROMIS-29 in patients undergoing lumbar spine surgery: convergent and discriminant validity, low floor/ceiling effects, and unidimensional domains. The conversion equation used 6 PROMIS-29 domains (ODI% =  37.847- 1.475*[PFraw] + 1.842*[PAINraw] + 0.557*[SDraw] - 0.642*[SRraw] + 0.478*[PIraw] + 0.295*[DEPraw]). Correlation between the predicted and actual ODI scores was R = 0.88, R2 = 0.78, suggesting that the equation predicted ODI scores that are strongly correlated with actual ODI scores. CONCLUSIONS Good measurement properties support the use of PROMIS-29 in spine surgery patients. Findings suggest accurate ODI scores can be derived from PROMIS-29 domains. Clinicians who want to move from ODI to PROMIS-29 can use this equation to obtain estimated ODI scores when only collecting PROMIS-29. These results support the idea that PROMIS-29 domains have the potential to replace disease-specific traditional PROMs.

中文翻译：

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使用PROMIS-29在腰椎手术患者的国家样本中预测Oswestry残疾指数（ODI）。

目的主要目的是检查PROMIS-29的测量特性，以更好地了解其在脊柱手术患者中的使用。第二个目标是计算PROMIS-29与ODI之间的预测方程，以使临床医生和研究人员可以基于PROMIS简式分数确定预测的ODI分数。方法从质量结果数据库中查询719例PROMIS v2.0和ODI反应的患者。使用系数ω，天花板/地板效果和确认性因素分析评估有效性。使用来自PROMIS-29域的预测ODI分数的多元回归来创建预测方程。将预测的ODI分数与ODI分数作图，以确定PROMIS-29域预测ODI的程度。结果结果显示，腰椎手术患者PROMIS-29具有良好的信度和效度：收敛和判别效度，低底限/天花板效应和一维域。转换方程使用6个PROMIS-29域（ODI％= 37.847- 1.475 * [PFraw] + 1.842 * [PAINraw] + 0.557 * [SDraw]-0.642 * [SRraw] + 0.478 * [PIraw] + 0.295 * [DEPraw] ）。预测的ODI分数与实际的ODI分数之间的相关性为R = 0.88，R2 = 0.78，表明该方程式预测的ODI分数与实际的ODI分数高度相关。结论良好的测量性能支持PROMIS-29在脊柱外科手术患者中的使用。调查结果表明，可以从PROMIS-29域获得准确的ODI分数。希望从ODI迁移到PROMIS-29的临床医生可以在仅收集PROMIS-29时使用此方程式获取估计的ODI分数。这些结果支持以下观点：PROMIS-29域具有取代特定疾病的传统PROM的潜力。