Farndon Lisa, Concannon Michael, Stephenson John
Jordanthorpe Health Centre, 1 Dyche Close, Sheffield, S8 8DJ UK.
Department of Health Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH UK.
J Foot Ankle Res. 2015 Dec 8;8:70. doi: 10.1186/s13047-015-0131-4. eCollection 2015.
Corns are a common foot problem affecting a large proportion of the population. This study describes the characteristics of corns experienced by 201 participants taking part in a randomised controlled trial to investigate associations between demographic and corn parameters on pain, foot related disability and quality of life (QoL).
Pain from the main (index) corn was measured using a visual analogue scale (VAS); foot related disability was assessed with the Foot Disability Questionnaire (now known as the Manchester Foot Pain and Disability Index) and quality of life was recorded with the EQ-5D questionnaire. The effect of demographic and corn parameters on the pain and quality of life outcomes was assessed with analysis of variance (ANOVA) methods. The effect of the same factors on a linear combination of the foot-related disability outcome measures was assessed using multivariate ANOVA methods. Pain was also tested for its mediating properties on the causal pathway between the independent variables and quality of life.
The mean pain score was 5.29 points on a 10 cm VAS, with females reporting substantively higher pain levels than males. Age affected foot-related disability, with lower levels on all domains of the MFPDI reported in older participants; each year of advancing age was associated with falls of: 0.009 points on the Concern about Appearance (CA) domain; 0.047 points on the Functional Limitation (FL) domain and 0.048 points on the Pain Intensity (PI) domain. Sex and corn type also affected disability, with higher scores reported by females and participants with plantar corns.
The effect of pain was shown to mediate the relationship between sex and foot-related disability. The presence of plantar corns has a more detrimental effect on QoL than dorsal/inter-digital corns.
ISRCTN 13166839.
鸡眼是一种常见的足部问题，影响着很大一部分人群。本研究描述了201名参与随机对照试验的参与者所经历的鸡眼特征，该试验旨在调查人口统计学和鸡眼参数与疼痛、足部相关残疾及生活质量（QoL）之间的关联。
使用视觉模拟量表（VAS）测量主要（指标）鸡眼的疼痛；用足部残疾问卷（现称为曼彻斯特足部疼痛和残疾指数）评估足部相关残疾，并通过EQ - 5D问卷记录生活质量。采用方差分析（ANOVA）方法评估人口统计学和鸡眼参数对疼痛和生活质量结果的影响。使用多元方差分析方法评估相同因素对足部相关残疾结果测量的线性组合的影响。还测试了疼痛在自变量与生活质量之间因果路径上的中介作用。
在10厘米的VAS上，平均疼痛评分为5.29分，女性报告的疼痛水平明显高于男性。年龄影响足部相关残疾，老年参与者在MFPDI的所有领域报告的水平较低；年龄每增加一岁，在外观关注（CA）领域下降0.009分；在功能限制（FL）领域下降0.047分；在疼痛强度（PI）领域下降0.048分。性别和鸡眼类型也影响残疾，女性和患有跖部鸡眼的参与者得分更高。
疼痛的影响被证明介导了性别与足部相关残疾之间的关系。跖部鸡眼的存在对生活质量的不利影响比背部/指间鸡眼更大。
ISRCTN 13166839
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