Timmerman Angelique A, Anteunis Lucien J C, Meesters Cor M G
Department of Otorhinolaryngology-Head and Neck Surgery, University Hospital of Maastricht, The Netherlands.
Arch Otolaryngol Head Neck Surg. 2003 Sep;129(9):987-91. doi: 10.1001/archotol.129.9.987.
To validate the 6-item quality-of-life survey (OM-6) and to investigate response-shift bias regarding children with otitis media.
Otorhinolaryngology department of a university hospital that serves the southernmost part of the Netherlands.
Seventy-seven children (age range, 12-38 months) experiencing persistent otitis media with effusion and scheduled for placement of tympanostomy tubes.
The OM-6 measures health-related quality of life in 6 domains: physical suffering, hearing loss, speech impairment, emotional distress, activity limitations, and caregiver concerns.
Parents completed the OM-6 before surgery (pretest) and 6 weeks after surgery (posttest). At the posttest, parents also completed a retrospective version of the pretest (retrospective pretest).
For most items, the test-retest reliability was good (R>0.8). The internal consistency of the OM-6 was satisfactory (alpha =.79). The construct validity, determined by correlating the ear-related global quality-of-life measure and the OM-6 summary score, was fair (R = -0.77, P<.01). Prospective change in quality of life on the OM-6 ranged from moderate (standardized response mean >/=0.5) to large (standardized response mean >/=0.8). Response-shift bias was present at the group level (t = -3.3, P<.01). Retrospective change was significant for hearing loss (z = -3.3, P<.05) and ear-related global quality of life (z = -3.6, P<.05).
The validity of the OM-6 has been proved in a Dutch population. The data suggest that parents underestimate the seriousness of hearing loss and overestimate the quality of life of their child before surgery, indicating a response shift. Treatment results could lead parents to realize that the situation before surgery had been worse than they thought.
验证6项生活质量调查问卷（OM - 6），并调查中耳炎患儿的反应转移偏差。
荷兰最南部一所大学医院的耳鼻喉科。
77名年龄在12 - 38个月之间、患有持续性中耳积液且计划进行鼓膜置管术的儿童。
OM - 6在6个领域测量与健康相关的生活质量：身体痛苦、听力损失、言语障碍、情绪困扰、活动受限和照顾者担忧。
父母在手术前（预测试）和手术后6周（后测试）完成OM - 6。在后测试时，父母还完成了预测试的回顾性版本（回顾性预测试）。
对于大多数项目，重测信度良好（R>0.8）。OM - 6的内部一致性令人满意（α = 0.79）。通过将耳部相关的总体生活质量测量值与OM - 6总分相关来确定的结构效度尚可（R = -0.77，P<0.01）。OM - 6上生活质量的前瞻性变化范围从中度（标准化反应均值≥0.5）到重度（标准化反应均值≥0.8）。在组水平上存在反应转移偏差（t = -3.3，P<0.01）。听力损失（z = -3.3，P<0.05）和耳部相关的总体生活质量（z = -3.6，P<0.05）的回顾性变化具有显著性。
OM - 6的效度已在荷兰人群中得到证实。数据表明，父母在手术前低估了听力损失的严重性，高估了孩子的生活质量，这表明存在反应转移。治疗结果可能会使父母意识到手术前的情况比他们想象的更糟。
