寒区边防军人睡眠异常对战斗力的影响调查

目的：调查研究寒区边防军人睡眠异常对部队战斗力的影响。方法：用EpiData302软件包制成的电子问卷,采用问答的形式进行调查,在军医指导下利用计算机同步填写。结果：226位边防军人中睡眠异常者为187人,占82.7％。按睡眠异常对战斗力的影响前10种情况依次为影响白天精力、影响情绪、影响站岗、影响训练、影响学习、影响体力（下降）、影响比赛、影响出操、影响食欲、影响思维。结论：边防军入睡眠异常不容忽视,对部队战斗力产生着不良影响。     

Chlamydia trachomatis infections in Greece: first prevalence study using nucleic acid amplification tests

The present retrospective study was initiated to determine the prevalence of Chlamydia trachomatis and to assess the risk factors for infection in adult women and men presenting to general practitioners, gynecologists, dermatologists, and family-planning centers in Greece. The study was carried out in four different Greek hospital centers using highly sensitive nucleic acid amplification techniques. Altogether, 16,834 women and 1,035 men were enrolled from October 1998 to April 2004. Two types of specimens were collected from each patient: cervical swabs from women, urethral swabs from men, and first-catch urine from women and men. All specimens were examined with the Cobas Amplicor C. trachomatis polymerase chain reaction assay (Roche Molecular Systems, Branchburg, NJ, USA) or the LC × C. trachomatis ligase chain reaction assay (Abbott Laboratories, Abbott Park, IL, USA). Demographic and behavioral data were collected by clinicians using a standardized questionnaire. A total of 704 (3.9%) patients were infected with C. trachomatis. The prevalence among female patients was 3.5% and that among male patients 11.2%. Among infected patients, 88% were under 30 years of age, 71% reported more than one sexual partner, and 91% reported a new sexual partner within the last year. In conclusion, the prevalence of C. trachomatis infection in Greece is low. Young age and new and multiple sexual partners within the last year were factors consistently associated with an increased risk of chlamydial infection.