Lamoureux Ecosse L, Marella Manjula, Chang Benjamin, Dirani Mohamed, Kah-Guan Au Eong, Chia Audrey, Young Terry L, Wong Tien Y, Saw Seang Mei
Centre for Eye Research Australia, The Royal Victorian Eye and Ear Hospital, University of Melbourne, Victoria, Australia.
Optom Vis Sci. 2010 Nov;87(11):813-22. doi: 10.1097/OPX.0b013e3181f6fb84.
To determine the psychometric validity of the pediatric quality of life inventory (PedsQL 4.0) in assessing the impact of refractive errors on health-related quality of life (HRQoL) in preschool children in Singapore.
Parents of toddlers (aged 25 to 48 months) and young children (49 to 72 months) completed the PedsQL 4.0, an HRQoL scale as part of population-based trial in Singapore. The outcome measures were the overall score, and the "physical"; "emotional"; "social"; and "school" functioning subscales. Rasch analysis was used to validate the PedsQL 4.0.
Parents of 939 (48.9%) toddlers and 982 (51.1%) young children completed the PedsQL 4.0 survey. The overall mean (±standard deviation) spherical equivalence for the right eye was 0.47 ± 1.13 diopter (D) for toddlers and 0.74 ± 1.22 D for young children. One hundred forty-nine (15.9%) toddlers and 90 (9.2%) young children were considered myopic (≥-0.50 D). Most participants (n = 1286, 89.6%) had presenting visual acuity 6/9 or better. Rasch analysis showed evidence of disordered category thresholds and poor person-item targeting for both groups. The separation reliability was 0.00 for toddlers and 0.03 for young children, indicating there was no variance in both samples. The PedsQL 4.0 overall and subscale scores displayed substantial multidimensionality as the variance values explained by the measures was <25% in both groups. A minimum value of 60% is usually considering acceptable.
The PedsQL 4.0 in its current state is not a valid psychometric scale to effectively evaluate the impact of refractive errors on HRQoL in preschool children in Singapore.
确定儿童生活质量量表（PedsQL 4.0）在评估新加坡学龄前儿童屈光不正对健康相关生活质量（HRQoL）影响方面的心理测量效度。
幼儿（25至48个月）和儿童（49至72个月）的家长完成了PedsQL 4.0，这是一项作为新加坡基于人群的试验一部分的HRQoL量表。结果指标为总分以及“身体”“情感”“社交”和“学校”功能子量表。采用拉施分析来验证PedsQL 4.0。
939名（48.9%）幼儿和982名（51.1%）儿童的家长完成了PedsQL 4.0调查。幼儿右眼的总体平均（±标准差）球镜等效度为0.47±1.13屈光度（D），儿童为0.74±1.22 D。149名（15.9%）幼儿和90名（9.2%）儿童被认为近视（≥ -0.50 D）。大多数参与者（n = 1286，89.6%）的视力为6/9或更好。拉施分析显示两组均存在类别阈值紊乱和人 - 项目匹配不佳的证据。幼儿组的区分信度为0.00，儿童组为0.03，表明两个样本均无方差。PedsQL 4.0的总分和子量表得分显示出显著的多维性，因为两组中这些测量所解释的方差值均<25%。通常认为最小值60%是可接受的。
当前状态下的PedsQL 4.0不是一个有效的心理测量量表，无法有效评估新加坡学龄前儿童屈光不正对HRQoL的影响。
