<sec><title>OBJECTIVES</title><p>This study aimed to establish a stature-predicted equation using knee height, and perform a clinical validation on a Korean population.</p></sec><sec><title>METHODS</title><p>Using nationwide data obtained from 'Size Korea 2004', a stature-predicted equation was drawn and cross validation was performed using knee height in 5,063 subjects (2,532 males, 1,785 premenopausal females, and 746 postmenopausal females) who were aged between 20 and 69 yr. The formula was then applied to an elderly group (7 males and 26 females) and a mobility-impaired group (25 males and 14 females) in a real clinical setting. A stature-predicted equation was estimated using knee height and age based on multiple linear regression analysis. Cross validation was performed using paired t-test, and validation using clinical data was performed using Wilcoxon signed rank test.</p></sec><sec><title>RESULTS</title><p>In three groups (males, premenopausal females, and postmenopausal females), a cross validation was performed for a stature-predicted equation which was drawn using knee height and age. There were no significant differences between recorded height and estimated height in the elderly group (mean difference±interquartile range (IQR): male 0.65±4.65 cm, female -0.10±3.65 cm) and the mobility-impaired group (mean difference±IQR: male -0.23±5.45 cm, female 1.64±5.36 cm).</p></sec><sec><title>CONCLUSION</title><p>If several limitations could be overcome, the Korean-specific equations using knee height drawn from this study could be applied to actual clinical settings with Korean elderly or mobility-impaired people.</p></sec>
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<sec><title>OBJECTIVES</title><p>The incidence of clinical hepatitis A has increased in young Korean adults since the mid-1990s. Although hepatitis A vaccinations have been administered in private clinics over the past 10 yr, no data exist on the vaccination rate and relating factors.</p></sec><sec><title>METHODS</title><p>In 2005, a population-based survey of 12-35-month-old children was carried out in Nonsan, Korea. An interview survey was completed for 71.3% of the children. All data came from a vaccination card or confirmation from a provider.</p></sec><sec><title>RESULTS</title><p>The hepatitis A vaccination rate was 42.3% for ≥1 dose and 24.7% for 2-dose. The results of the multivariate regression analysis for the hepatitis A vaccination showed that the second (OR=1.6) and third and successive children (OR=3.3) were less often immunized than the first child. Low economic status (OR=1.6), rural area (OR=1.5) and employed mother (OR=1.5) were also correlated with a lower vaccination rate. The hepatitis A vaccination rate was significantly lower in children who had no other vaccinations: measlesmumps-rubella (OR=2.8 for ≥1 dose and 7.3 for 2-dose), varicella (OR=20.2 and 22.0, respectively) and <italic>Haemophilus influenza</italic> type b (OR=14.3 and 13.3, respectively).</p></sec><sec><title>CONCLUSION</title><p>To prevent outbreaks of clinical hepatitis A by enough herd immunity, a vaccination should be included in the National Immunization Program and a vaccination policy developed and implemented that can overcome the barriers to immunization such as late birth order and a mother's employment.</p></sec>
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<p>The Korean Society of Epidemiology publishes a scholarly journal titled 'Korean Journal of Epidemiology', which announces and discusses the results of epidemiological studies from the past 30 yr. Since its first publication in 1979, the journal has contributed to the advancement of epidemiology as well as the prevention and control of disease, and the promotion of health in Korea.</p><p>In 2009, the editorial board has decided to publish the journal in English to contribute internationally, and change the journal's name. The new name of the journal is 'Epidemiology and Health'.</p><p>The abstract and full text of articles will be published as an open access online journal, which will be posted onto the homepage (<ext-link ext-link-type="uri" xlink:href="http://www.e-epih.org/">http://www.e-epih.org/</ext-link>) in real time for anyone in the world to access free of charge. Our editorial policy is that 'Epidemiology and Health' is open to every researcher in fields related to epidemiology, regardless of membership, his or her major and nationality.</p><p>Editorials, lectures, review papers, original articles, epidemic and case investigations, brief communications and letters will be published to generate active discussion through the journal along with the publication of the papers.</p><p>'Epidemiology and Health' welcomes articles from various fields of epidemiology, such as 1) infectious diseases epidemiology, 2) chronic diseases epidemiology, 3) nutritional epidemiology, 4) clinical epidemiology, 5) pharmacoepidemiology, 6) genetic or molecular epidemiology, 7) social epidemiology, 8) environmental or occupational epidemiology, 9) epidemiological methods and biostatistics, 10) disease prevention and control, 11) health promotion and, 12) all other fields related to epidemiology.</p>