Kardeh Bahareh, Ashraf Alireza, Kardeh Sina
Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran.
Shiraz Geriatric Research Center, Shiraz Burn Research Center, and Department of Physical Medicine and Rehabilitation, Shiraz University of Medical Sciences, Shiraz, Iran.
Galen Med J. 2019 Jan 1;8:e1287. doi: 10.31661/gmj.v8i0.1287. eCollection 2019.
Mechanical neck pain (MNP) is a common health concern. Some studies suggested a relationship between neck pain and visual activity. We assessed the role of myopia as a contributing factor in the development of chronic MNP.
All medical students at Shiraz University School of Medicine, who were 18 to 22 years old, were invited to participate in this retrospective case-control study from March 2016 to March 2017. Numeric Pain Rating Scale (NPRS) was used to assess the average neck pain severity over the past 6 months in order to enroll participants as the case (≥3) or control (<3) groups. Demographic data and medical profile were obtained. After identifying eligible cases, we assigned age- and sex-matched controls, who also met the study criteria. Subsequently, participants completed the Neck Disability Index (NDI) and Neck Pain and Disability Scale (NPDS) questionnaires and were evaluated for myopia severity. Variables were compared between the case and control groups as well as within the case group. P-value<0.05 was considered statistically significant.
From over 700 medical students, around 150 cooperated. Eventually, 31 eligible cases (and 31 controls) were studied. NDI and NPDS were significantly higher in the case group (P<0.001). However, no significant differences were noticed between the groups regarding the severity (P=0.123) and the duration (P=0.417) of myopia. Also, the correlation of myopia severity with NDPS (ρ=0.159, P=0.216) and NDI (ρ=0.201, P=0.116) was non-significant within the case group.
Our findings have not supported the influential role of myopia in the development of chronic MNP.
机械性颈痛（MNP）是一个常见的健康问题。一些研究表明颈痛与视觉活动之间存在关联。我们评估了近视作为慢性MNP发生的一个促成因素的作用。
2016年3月至2017年3月，邀请设拉子医科大学所有18至22岁的医学生参与这项回顾性病例对照研究。使用数字疼痛评分量表（NPRS）评估过去6个月的平均颈痛严重程度，以便将参与者纳入病例组（≥3）或对照组（<3）。获取人口统计学数据和医学资料。在确定符合条件的病例后，我们分配了年龄和性别匹配且也符合研究标准的对照组。随后，参与者完成颈部功能障碍指数（NDI）和颈痛与功能障碍量表（NPDS）问卷，并接受近视严重程度评估。对病例组和对照组之间以及病例组内部的变量进行比较。P值<0.05被认为具有统计学意义。
在700多名医学生中，约150人参与。最终，研究了31例符合条件的病例（以及31名对照）。病例组的NDI和NPDS显著更高（P<0.001）。然而，两组在近视严重程度（P=0.123）和持续时间（P=0.417）方面没有显著差异。此外，在病例组中，近视严重程度与NDPS（ρ=0.159，P=0.216）和NDI（ρ=0.2,1，P=0.116）的相关性不显著。
我们的研究结果不支持近视在慢性MNP发生中的影响作用。
