Ewha Womans University launched an on-campus Coronavirus disease-19 (COVID-19) response system called Ewha Safety Campus (ESC) Project in collaboration with the Seegene Inc. RT-PCR diagnostic tests for COVID-19 were proactively provided to the participants. This study examines the effectiveness of the on-campus testing strategy in controlling the reproduction number (R_t) and identifying student groups vulnerable to infection.

The ESC project was launched on March 2, 2022, with a pilot period from Feb 22 to March 1, 2022—the peak of the Omicron variant wave. We collected daily data on the RT-PCR test results of the students of Ewha Womans University from Mar 2 to Apr 30, 2022. We daily calculated R_t and compared it with that of the general population of Korea (women, people aged 20–29 years, and Seoul residents). We also examined the students vulnerable to the infection based on the group-specific R_t and positivity rate.

A lower R_t was observed about 2 weeks after the implementation of the ESC Project than that of the general population. The lower R_t persisted during the entire study period. Dormitory residents had a higher R_t. The positivity rate was higher in students who did not comply with quarantine guidelines and did not receive the second dose of the vaccine.

The study provides scientific evidence for the effectiveness of the on-campus testing strategy and different infection vulnerabilities of students, depending on dormitory residence, compliance with the quarantine guidelines, and vaccination.

Although common cold is a major cause of morbidity among university students, studies on the risk factors in relation to physical, social, emotional life styles among university students are limited. We sought to evaluate the effects of life style, depressive symptoms, and social support in common cold among medical school students.

120 medical students were surveyed through a self-reported questionnaire. They were asked to rate the severity of eight respiratory symptoms of the Jackson Criterion during the previous month. The ratings were summed to calculate the total symptom score. Social support was assessed by using Interpersonal Support Evaluation List(ISEL). Depressive symptoms were assessed by using The Center for Epidemiologic studies Depression Scale(CES-D). A score of 16 or higher was used as the cut-off point for high depressive symptoms. Life style factors were also evaluated. that Wilcoxon rank sum test, Kruskal-Wallis test, Chi-square test, and logistic regression test were used.

The symptom score ranged from 0 to 18 and the median was 10 among those who had experienced symptoms. 33(34.4%) had experienced cold during the last month. The social support score ranged from 91 to 156 and the median was 113. The prevalence of high depressive symptoms was 36.7%. Students with lower social support and higher depressive symptoms had higher cold symptom scores, although it was not statistically significant. Students who had evaluated their sleep quality and health status as bad had higher cold symptoms scores. In multiple logistics regression analysis, depression, sleep quality, and self-perceived health status were either significant or border-line significant risk factors of cold.

Our study suggests that life style factors such as sleep quality and self-perceived health status is associated with an increased susceptibility to common cold.

The purpose of this study is to deliver effective worksite health management by specifying job of occupational physician, occupational nurse, occupational hygienist and making job reference manual and health performance audit. Therefore, We can contribute to disease prevention and health promotion of workers by enhancing quality of worksite health management.

The methodology of making performance audit is comprised of developing audit questions and weighting the questions. Measures are made by scoring the values. The questionnaires were grouped by the categories and sections. This occupational audit was distributed to the health personnel of 350 workplaces by mail. The self-administered results were returned and analyzed.

We plot the field of occupational health service by basic policy, preventive health service, health care, administration, and other services. We gave the weight A on the primary job, B on the supplementary job, and C on the minor job. This weight was made through the delphi procedures where 30 specialists joined. Basic policy got score of 16.1% preventive health service got 36.5%, health care 20.4%, administration 10.9%, and other services 10.1%. Further weightings on the questionnaire sections were made through the survey on specialists and final weighting on each questionnaire was made by making formula considering weights of each stage. The audit was composed of 96 questions which has dichotomos scales and full score was 1,000. Person-nels from 80 workplaces (23%) replied the audit and the scores of physicians, nurses, and hygienists were 608.6, 587.1 and 535.4, respectively, all a little higher than 500.

The health performance audit can be used by the sorksite health personnels providing health service. However, this work would not be complete without further comprehe-sion and application in the real settings.

This study aims to survey of the health examination for occupational disease using similar exposure group(SEG).

We surveyed industrial hygienists and occupational physicians about the health screening using SEG. We randomly sampled 100 industrial hygienists and 100 occupational physicians from the membership lists. We collected the heneral characteristics and professional opinion of health examination for occupational disease screening using SEG. The self-reported questionnaires were collected by mail from July 1st to July 20th in 1999.

Seventy three percent of respondents answered they knew the concepts of SEG. Occupational hygienists were more likely to know the SEG than occupational physician, but it was not statistically significant. Both of occupational hygienists and physicians pointed out that "Improvement of hazardous exposure monitoring" should be on the first assumption for development of health examination using SEG. The second assumption would be "Advance of toxicologic knowledge". And next was "Improvement of appraisal for health effect" from occupational physician, but "Administrative will to reform" from occupational hygienist.

It is desirable to health examination based on SEG rather than on individual hazardous exposure. For this approach, we have to improve the monitoring of hazardous exposure first.