Carod-Artal Francisco Javier, Coral Luciane Ferreira, Trizotto Daniele Stieven, Moreira Clarissa Menezes
Neurology Department, Sarah Hospital, SMHS quadra 501 conjunto A, CEP 70330-150, Brasilia DF, Brazil.
Stroke. 2008 Sep;39(9):2477-84. doi: 10.1161/STROKEAHA.107.513671. Epub 2008 Jul 17.
We sought to assess the psychometric attributes of the Brazilian version of the Stroke Impact Scale (SIS) 3.0 in stroke survivors.
Patients were evaluated by the National Institutes of Health Stroke Scale, Mini-Mental State Examination, Barthel Index, Lawton Instrumental Activities of Daily Living Scale, modified Rankin Scale, Geriatric Depression Scale, and Hospital Anxiety and Depression Scale. Health-related quality of life was evaluated with the MOS-Short Form 36 and SIS 3.0.
One hundred seventy-four stroke survivors were assessed (mean age, 56.9 years; 55.2% male). Hand function had a prominent floor effect (45.9%), whereas a ceiling effect was observed in the communication domain (17.3%). The internal consistency of SIS (Cronbach's alpha=0.94) and SIS domains (item-dimension correlation, 0.17 to 0.89) were satisfactory; only the emotion domain had poor internal consistency (Cronbach's alpha=0.49). Test-retest reliability was evaluated in 50 consecutive patients. Concerning the stability of the SIS, the weighted kappa values ranged from 0.33 (item 3a) to 0.94 (item 7e). Intraclass correlation coefficient values for the SIS domains ranged from 0.48 (emotion) to 0.94 (hand function). Standard error of measurement values for SIS domains ranged from 6.85 (mobility) to 9.63 (social participation). Regarding convergent validity, a significant correlation (Spearman's correlation coefficient, P<0.0001) was found between the SIS composite physical domain and the National Institutes of Health Stroke Scale (-0.69), modified Rankin Scale (-0.81), Barthel Index (0.87), Lawton Scale (0.76), and MOS-Short Form 36 physical component summary (0.61). SIS domain scores significantly decreased as modified Rankin Scale scores increased (discriminative validity; ANOVA, P<0.0001).
The Brazilian version of SIS 3.0 has satisfactory psychometric properties and can be used in stroke survivors to assess health-related quality of life.
我们试图评估巴西版卒中影响量表（SIS）3.0在卒中幸存者中的心理测量学特性。
采用美国国立卫生研究院卒中量表、简易精神状态检查表、巴氏指数、洛顿日常生活能力量表、改良Rankin量表、老年抑郁量表和医院焦虑抑郁量表对患者进行评估。使用MOS简明健康调查36项量表和SIS 3.0评估健康相关生活质量。
共评估了174例卒中幸存者（平均年龄56.9岁；55.2%为男性）。手部功能有显著的地板效应（45.9%），而在交流领域观察到天花板效应（17.3%）。SIS的内部一致性（Cronbach's α = 0.94）和SIS各领域（项目-维度相关性，0.17至0.89）令人满意；只有情感领域的内部一致性较差（Cronbach's α = 0.49）。对50例连续患者进行了重测信度评估。关于SIS的稳定性，加权kappa值范围为0.33（项目3a）至0.94（项目7e）。SIS各领域的组内相关系数值范围为0.48（情感）至0.94（手部功能）。SIS各领域的测量标准误值范围为6.85（活动能力）至9.63（社会参与）。关于收敛效度，在SIS综合身体领域与美国国立卫生研究院卒中量表（-0.69）、改良Rankin量表（-0.81）、巴氏指数（0.87）、洛顿量表（0.76）和MOS简明健康调查36项量表身体成分汇总（0.61）之间发现显著相关性（Spearman相关系数，P<0.0001）。随着改良Rankin量表评分增加，SIS领域评分显著降低（区分效度；方差分析，P<0.0001）。
巴西版SIS 3.0具有令人满意的心理测量学特性，可用于卒中幸存者评估健康相关生活质量。
