Hirsch R, Fernandes R J, Pillemer S R, Hochberg M C, Lane N E, Altman R D, Bloch D A, Knowler W C, Bennett P H
National Institute of Arthritis and Musculoskeletal and Skin Diseases, Bethesda, Maryland 20892-3675, USA.
Arthritis Rheum. 1998 Feb;41(2):361-8. doi: 10.1002/1529-0131(199802)41:2<361::AID-ART21>3.0.CO;2-2.
To estimate and compare the age- and sex-specific prevalence of radiographic hip osteoarthritis (RHOA) in a population-based study of the Pima Indians, using 3 atlas-based methods for assessing features of RHOA.
Pelvic radiographs from 755 Pima Indians age > or = 45 years enrolled in a population-based study were read using the Kellgren/Lawrence (K/L) grading scale (grade 0-4) and 2 validated individual-radiographic-features (IRF) scales (grades 0-3 for narrowing and osteophytes).
The age- and sex-specific prevalence of RHOA among Pima Indians assessed using the K/L scale was < 10% in all age and sex groups. The prevalence of grade > or = 2 osteophytes assessed using the 2 IRF scales were similar to each other in all age and sex groups. However, differences between the 2 IRF scoring systems were found for the prevalence of grade > or = 2 joint space narrowing.
Pima Indians have an age- and sex-specific prevalence of RHOA similar to that found in the US population. Our finding of different joint space narrowing prevalence by the 2 IRF grading scales supports the use of the same atlas-based case definitions for determining disease prevalence for comparative studies.
在一项针对皮马印第安人的基于人群的研究中，使用3种基于图谱的方法评估髋关节骨关节炎（RHOA）的特征，以估计并比较特定年龄和性别的RHOA患病率。
对纳入一项基于人群研究的755名年龄≥45岁的皮马印第安人的骨盆X光片，采用凯尔格伦/劳伦斯（K/L）分级量表（0 - 4级）和2种经过验证的个体放射学特征（IRF）量表（狭窄和骨赘分级为0 - 3级）进行解读。
使用K/L量表评估的皮马印第安人中，所有年龄和性别组的RHOA特定年龄和性别的患病率均<10%。使用2种IRF量表评估的≥2级骨赘的患病率在所有年龄和性别组中彼此相似。然而，在≥2级关节间隙狭窄的患病率方面，发现2种IRF评分系统之间存在差异。
皮马印第安人RHOA的特定年龄和性别的患病率与美国人群中的患病率相似。我们关于2种IRF分级量表关节间隙狭窄患病率不同的发现，支持在比较研究中使用相同的基于图谱的病例定义来确定疾病患病率。
