Wang Yung-Cheng, Tseng Ying-Chi, Chang Hsio-Yun, Wang Yu-Jen, Chen Chi-Jen, Wu Der Yang
Department of Radiology, Cathay General Hospital, Taipei, Taiwan, ROC.
J Hand Surg Am. 2010 Feb;35(2):252-5. doi: 10.1016/j.jhsa.2009.11.010.
To discover whether there is a significant difference in carpal height ratio (CHR) between men and women aged 20 to 50 years.
We retrospectively reviewed 261 cases of normal plain wrist radiographs and measured the CHR using the Picture Achieving and Communication System. Each case was then stratified by gender and age (20-29, 30-39, and 40-50 y).
The mean CHR was 0.52 +/- 0.03 for men (range, 0.43-0.59), 0.50 +/- 0.03 for women (range, 0.43-0.57), and 0.51 +/- 0.03 for the total population (range, 0.43-0.59). The difference in CHR between men and women was statistically significant (p<.01). However, there was no significant difference (p=.13) among age groups in either men or women.
We recommend using gender-specific norms (ie, 0.52 +/- 0.03 for men and 0.50 +/- 0.03 for women, respectively) for CHR. Without gender specification, a subtle abnormality may be overlooked in men, and there may be an overdiagnosis of carpal disorder in women. Further investigations are needed to look into possible racial differences, because our study is based on a homogeneous ethnic Chinese population.
探究20至50岁男性和女性的腕高比（CHR）是否存在显著差异。
我们回顾性分析了261例正常腕部X线平片病例，并使用图像获取与通信系统测量CHR。然后根据性别和年龄（20 - 29岁、30 - 39岁和40 - 50岁）对每个病例进行分层。
男性的平均CHR为0.52±0.03（范围0.43 - 0.59），女性为0.50±0.03（范围0.43 - 0.57），总体人群为0.51±0.03（范围0.43 - 0.59）。男性和女性之间的CHR差异具有统计学意义（p<0.01）。然而，男性或女性各年龄组之间无显著差异（p = 0.13）。
我们建议针对CHR使用特定性别的标准（即男性为0.52±0.03，女性为0.50±0.03）。若不区分性别，男性可能会忽略细微异常，而女性可能会过度诊断腕部疾病。由于我们的研究基于同质的华裔人群，因此需要进一步研究种族差异。
