Department of Orthopedic Surgery, Keller Army Hospital, Department of Mathematical Sciences, West Point, NY, USA.
J Athl Train. 2012 Jan-Feb;47(1):67-73. doi: 10.4085/1062-6050-47.1.67.
Few population-based studies have examined the incidence of meniscal injuries, and limited information is available on the influence of patient's demographic and occupational factors.
To examine the incidence of meniscal injuries and the influence of demographic and occupational factors among active-duty US service members between 1998 and 2006.
Cohort study.
Using the International Classification of Diseases (9th revision) codes 836.0 (medial meniscus), 836.1 (lateral meniscus), and 836.2 (meniscus unspecified), we extracted injury data from the Defense Medical Surveillance System to identify all acute meniscal injuries among active-duty military personnel.
Active-duty military personnel serving in all branches of military service during the study period.
MAIN OUTCOME MEASURE(S): Incidence rate (IR) per 1000 person-years at risk and crude and adjusted rates by strata for age, sex, race, rank, and service.
During the study period, 100201 acute meniscal injuries and 12115606 person-years at risk for injury were documented. The overall IR was 8.27 (95% confidence interval [CI] = 8.22, 8.32) per 1000 person-years. Main effects were noted for all demographic and occupational variables (P < .001), indicating that age, sex, race, rank, and service were associated with the incidence of meniscal injuries. Men were almost 20% more likely to experience an acute meniscal injury than were women (incidence rate ratio = 1.18, 95% CI = 1.15, 1.20). The rate of meniscal injury increased with age; those older than 40 years of age experienced injuries more than 4 times as often as those under 20 years of age (incidence rate ratio = 4.25, 95% CI=4.08,4.42).
The incidence of meniscal injury was substantially higher in this study than in previously reported studies. Male sex, increasing age, and service in the Army or Marine Corps were factors associated with meniscal injuries.
很少有基于人群的研究调查过半月板损伤的发病率，且关于患者人口统计学和职业因素影响的信息也十分有限。
在 1998 年至 2006 年期间，调查现役美国军人中半月板损伤的发病率以及人口统计学和职业因素的影响。
队列研究。
使用国际疾病分类（第 9 版）代码 836.0（内侧半月板）、836.1（外侧半月板）和 836.2（半月板不明），我们从国防医疗监测系统中提取损伤数据，以确定现役军事人员中所有急性半月板损伤。
在研究期间服役于所有军种的现役军人。
每 1000 人年风险的发病率（IR）和按年龄、性别、种族、军衔和军种分层的粗发病率和调整发病率。
在研究期间，共记录了 100201 例急性半月板损伤和 12115606 人年的损伤风险。总体发病率为 8.27（95%置信区间[CI] = 8.22，8.32）/1000 人年。所有人口统计学和职业变量都有主要影响（P<0.001），这表明年龄、性别、种族、军衔和军种与半月板损伤的发生有关。男性发生急性半月板损伤的可能性比女性高近 20%（发病率比=1.18，95%CI=1.15，1.20）。半月板损伤的发生率随年龄增长而增加；40 岁以上的人发生损伤的可能性是 20 岁以下的人 4 倍以上（发病率比=4.25，95%CI=4.08，4.42）。
本研究中半月板损伤的发病率明显高于之前的报道。男性、年龄增长以及在陆军或海军陆战队服役是半月板损伤的相关因素。
