Faculty of Medicine, Dept of Clinical Sciences Lund, Respiratory Medicine, Allergology and Palliative Medicine, Lund University, 221 85, Lund, Sweden.
BMC Geriatr. 2022 Jun 2;22(1):477. doi: 10.1186/s12877-022-03166-5.
The Dyspnoea-12 (D12) and Multidimensional dyspnea profile (MDP) are commonly used instruments for assessing multiple dimensions of breathlessness but have not been validated in older people in the population. The aim of this study was to validate the D12 and MDP in 73-years old men in terms of the instruments' underlying factor structures, internal consistency, and validity.
A postal survey was sent out to a population sample of 73-years old men (n = 1,193) in southern Sweden. The two-factor structures were evaluated with confirmatory factor analysis, internal consistency with Cronbach's alpha, and validity using Pearson´s correlations with validated scales of breathlessness, anxiety, depression, fatigue, physical/mental quality of life, body mass index (BMI), and cardiorespiratory disease.
A total 684 men were included. Respiratory and cardiovascular disease were reported by 17% and 38%, respectively. For D12 and MDP, the proposed two-factor structure was not fully confirmed in this population. Internal consistency was excellent for all D12 and MDP domain scores (Cronbach's alpha scores > 0.92), and the instruments' domains showed concurrent validity with other breathlessness scales, and discriminant validity with anxiety, depression, physical/mental quality of life, BMI, and cardiorespiratory disease.
In a population sample of 73-years old men, the D12 and MDP had good psychometrical properties in terms of reliability and validity, which supports that the instruments are valid for use in population studies of older men.
呼吸困难-12 量表（D12）和多维呼吸困难量表（MDP）常用于评估呼吸困难的多个维度，但尚未在人群中的老年人中进行验证。本研究的目的是验证 D12 和 MDP 在 73 岁男性中的基础结构、内部一致性和有效性。
在瑞典南部，向一个 73 岁男性的人群样本邮寄了一份调查问卷。采用验证性因子分析评估两种因子结构，用 Cronbach's alpha 评估内部一致性，用 Pearson 相关系数与验证过的呼吸困难、焦虑、抑郁、疲劳、身体/精神生活质量、体重指数（BMI）和心肺疾病量表评估有效性。
共纳入 684 名男性。报告有呼吸系统疾病和心血管疾病的分别占 17%和 38%。对于 D12 和 MDP，所提出的两种因子结构在该人群中并未完全得到证实。所有 D12 和 MDP 领域的评分的内部一致性都非常好（Cronbach's alpha 评分>0.92），并且这些工具的领域与其他呼吸困难量表具有同时效度，与焦虑、抑郁、身体/精神生活质量、BMI 和心肺疾病具有判别效度。
在 73 岁男性的人群样本中，D12 和 MDP 在可靠性和有效性方面具有良好的心理测量特性，这支持这些工具在老年人的人群研究中是有效的。
