Background: The post-traumatic stress disorder (PTSD) Checklist (PCL)-5, originally a 20-item self-questionnaire, has provided abbreviated versions of the checklist. This study aimed to test the diagnostic utility and validity of four brief versions of PCL-5 in a sample of adults seeking treatment at a psychiatric outpatient unit in a South Korean university-affiliated hospital. Methods: The sample comprised 97 adults diagnosed with PTSD and 130 diagnosed with other psychiatric disorders seeking treatment. Each abbreviated scale was examined with the area under the receiver operating characteristic curve (AUC), sensitivity, specificity, and positive predictive power. Additionally, internal consistency, correlation with full scale, convergent validity, and concurrent validity were investigated. Results: All four versions demonstrated excellent discriminative power, with AUC values of >0.9. Suggested cut-off scores were 6, 8, 11, and 16 for the short four-item version (S4), PCL4, PCL6, and PCL8, respectively. Internal consistency was adequate or good except for S4. Additionally, brief scales demonstrated good convergent validity with depression and anxiety scales and excellent concurrent validity with other PTSD scales. Conclusion This study confirms the excellent diagnostic utility and adequate validity of four abbreviated versions of the Korean translation of PCL-5 in the clinical trial.

27-Hydroxycholesterol (27OHChol) has been reported to induce differentiation of monocytic cells into a mature dendritic cell phenotype. We examined the effect of methanol extract of Nardostachys chinensis (Nard) on 27OHChol-induced differentiation using THP-1, a human monocytic cell line. Treatment of monocytic cells with methanol extract of Nard resulted in decreased transcription and surface expression of CD80, CD83, and CD88 elevated by 27OHChol in a dose-dependent manner. Surface levels of MHC class I and II molecules elevated by 27OHChol were also reduced to basal levels by treatment with the Nard extract. Decreased endocytosis activity caused by 27OHChol was recovered by treatment with the Nard extract. CD197 expression and cell attachment were attenuated by the Nard extract. In addition, levels of transcription and surface expression of CD molecules involved in atherosclerosis, such as CD105, CD137, and CD166 upregulated by 27OHChol were significantly decreased by treatment with methanol extract of Nard. These results indicate that methanol extract of Nard down-regulates 27OHChol-induced differentiation of monocytic cells into a mature dendritic cell phenotype and expression of CD molecules associated with atherosclerosis. The current study suggests that biological activity of oxygenated cholesterol derivatives can be inhibited by herbal medication.
Atherosclerosis ; Cell Line ; Cholesterol ; Dendritic Cells ; Endocytosis ; Humans ; Methanol* ; Monocytes ; Nardostachys* ; Oxygen ; Phenotype

PURPOSE: Epidemiological studies have demonstrated an association between excessive salt intake and gastric cancer risk, and this potential risk increases the need for adequate gastric cancer screening in individuals with high salt intake. However, the association between salt intake and gastric cancer screening in the general population has rarely been investigated. We explored the association between salt preference and participation in gastric cancer screening among a nationally representative Korean population. MATERIALS AND METHODS: The study population was derived from the Korean National Cancer Screening Survey (KNCSS) 2006-2007, an annual nationwide interview survey investigating cancer screening rates. Of 4,055 individuals who participated in the KNCSS 2006-2007, 3,336 individuals aged over 40 years were included in our analysis. The odds ratio (OR) and 95% confidence interval (CI) were estimated using polytomous logistic regression. RESULTS: Individuals with higher salt preference were less likely to participate in regular gastric cancer screening. After adjusting for age, sex, monthly household income, education, family history of cancer, and self-rated health status, ORs for undergoing regular gastric cancer screening were 1.00, 0.82 (95% CI, 0.61 to 1.12), 0.74 (95% CI, 0.54 to 1.00), 0.77 (95% CI, 0.56 to 1.05), and 0.38 (95% CI, 0.16 to 0.92) according to the level of salt preference (p for trend=0.048). CONCLUSION: Individuals with higher salt preference showed suboptimal gastric cancer screening adherence compared to those with a lower salt preference. These findings highlight the need for better delivery of educational messages to change risk perceptions regarding gastric cancer screening practice.
Early Detection of Cancer ; Education ; Epidemiologic Studies ; Family Characteristics ; Humans ; Korea* ; Logistic Models ; Mass Screening* ; Odds Ratio ; Sodium, Dietary ; Stomach Neoplasms*

PURPOSE: The Korean National Cancer Screening Survey (KNCSS) is a nationwide survey conducted annually, since 2004. This study was conducted in order to report on trends in rates of cancer screening for five major cancers-stomach, liver, colorectal, breast, and cervix uteri in Korea. MATERIALS AND METHODS: Data collected by the KNCSS between 2004 and 2011 were used in this study. The eligible study population included cancer-free men who were 40 years old and over, and women who were 30 years old and over. Lifetime screening rate, screening rate with recommendation, and changes in annual rates were calculated. RESULTS: Both lifetime screening rates and screening rates with recommendation have increased since 2004. On average, screening rates with recommendation have shown an annual increase of 4.2% (95% CI, 3.3 to 5.2%) for stomach cancer, 1.1% (95% CI, -0.5 to 2.7%) for liver cancer, 2.2% (95% CI, 0.8 to 3.6%) for colorectal cancer, 4.0% (95% CI, 3.0 to 4.9%) for breast cancer, and 0.2% (95% CI, -0.9 to 1.3%) for cervical cancer. Increases in rates of cancer screening, with the exception of liver and cervical cancers, were significant, and screening rates for stomach and breast cancer in particular showed a marked increase. CONCLUSION: Cancer screening rates among Koreans showed a consistent increase from 2004 to 2011 and rates of screening for gastric, breast, and cervical cancer are approaching 70%.
Breast ; Breast Neoplasms ; Cervix Uteri ; Colorectal Neoplasms ; Early Detection of Cancer ; Female ; Humans ; Liver ; Liver Neoplasms ; Male ; Mass Screening ; Stomach ; Stomach Neoplasms ; Uterine Cervical Neoplasms

PURPOSE: The National Cancer Screening Program (NCSP) in Korea supports cancer screening for stomach, liver, colorectal, breast, and cervical cancer. This study was conducted to assess trends in participation rates among Korean men and women invited to undergo screening via the NCSP as part of an effort to guide future implementation of the program in Korea. MATERIALS AND METHODS: Data from the NCSP for 2002 to 2012 were used to calculate annual participation rates with 95% confidence intervals (CI) by sex, insurance status, and age group for stomach, liver, colorectal, breast, and cervical cancer screening. RESULTS: In 2012, participation rates for stomach, liver, colorectal, breast, and cervical cancer screening were 47.3%, 25.0%, 39.5%, 51.9%, and 40.9%, respectively. The participation rates increased annually by 4.3% (95% CI, 4.0 to 4.6) for stomach cancer, 3.3% (95% CI, 2.5 to 4.1) for liver cancer, 4.1% (95% CI, 3.2 to 5.0) for colorectal cancer, 4.6% (95% CI, 4.1 to 5.0) for breast cancer, and 0.9% (95% CI, –0.7 to 2.5) for cervical cancer from 2002 to 2012. CONCLUSION: Participant rates for the NCSP for the five above-mentioned cancers increased annually from 2002 to 2012.
Breast ; Breast Neoplasms ; Colorectal Neoplasms ; Early Detection of Cancer* ; Female ; Humans ; Insurance Coverage ; Korea* ; Liver ; Liver Neoplasms ; Male ; Mass Screening ; Stomach ; Stomach Neoplasms ; Uterine Cervical Neoplasms

PURPOSE: The National Cancer Screening Program (NCSP) in Korea supports cancer screening for stomach, liver, colorectal, breast, and cervical cancer. This study was conducted to assess trends in participation rates among Korean men and women invited to undergo screening via the NCSP as part of an effort to guide future implementation of the program in Korea. MATERIALS AND METHODS: Data from the NCSP for 2002 to 2012 were used to calculate annual participation rates with 95% confidence intervals (CI) by sex, insurance status, and age group for stomach, liver, colorectal, breast, and cervical cancer screening. RESULTS: In 2012, participation rates for stomach, liver, colorectal, breast, and cervical cancer screening were 47.3%, 25.0%, 39.5%, 51.9%, and 40.9%, respectively. The participation rates increased annually by 4.3% (95% CI, 4.0 to 4.6) for stomach cancer, 3.3% (95% CI, 2.5 to 4.1) for liver cancer, 4.1% (95% CI, 3.2 to 5.0) for colorectal cancer, 4.6% (95% CI, 4.1 to 5.0) for breast cancer, and 0.9% (95% CI, –0.7 to 2.5) for cervical cancer from 2002 to 2012. CONCLUSION: Participant rates for the NCSP for the five above-mentioned cancers increased annually from 2002 to 2012.
Breast ; Breast Neoplasms ; Colorectal Neoplasms ; Early Detection of Cancer* ; Female ; Humans ; Insurance Coverage ; Korea* ; Liver ; Liver Neoplasms ; Male ; Mass Screening ; Stomach ; Stomach Neoplasms ; Uterine Cervical Neoplasms

OBJECTIVES: Through a survey on perception of lung cancer screening and accompanying medical radiation exposure in Korea, the present study was to investigate its current situations and evaluate various perception of physicians regarding it in order to propose measures for improvements. METHODS: Medical specialists in national cancer screening institutions selected through stratified random sampling were subjected to face-to-face interview using a structured questionnaire. We investigated physicians' perception on effectiveness of lung cancer screening depending on screening modality, selection criteria for subjects of screening, types of equipment used to screen, and perception for seriousness of adverse effects following the test. In addition, odds ratios to underestimate risk of radiation exposure from screening were calculated through logistic regression analysis. RESULTS: Each response that chest X-ray is effective for lung cancer screening and that smoking history is not considered prior to screening recommendation accounted for more than 60% of respondents, suggesting the chance of unnecessary screening tests. Regarding adverse effects of lung cancer screening, about 85% of respondents replied that false positive, radiation exposure, and overdiagnosis could be ignored. About 70% of respondents underestimated radiation dose from lung cancer screening, and a low proportion of physicians informed patients of radiation exposure risk. CONCLUSIONS: It was found that most physicians underestimated harms of lung cancer screening including radiation exposure and were lack of awareness regarding lung cancer screening. It should be noted that physicians need to have proper perceptions about screening recommendation and accompanying possible harms, for successful implementation of the screening program.
Early Detection of Cancer ; Health Care Surveys ; Humans ; Korea* ; Logistic Models ; Lung Neoplasms* ; Lung* ; Mass Screening* ; Medical Overuse ; Odds Ratio ; Patient Selection ; Radiation Exposure* ; Radiography ; Smoke ; Smoking ; Specialization ; Surveys and Questionnaires ; Thorax

OBJECTIVES: Through a survey on perception of lung cancer screening and accompanying medical radiation exposure in Korea, the present study was to investigate its current situations and evaluate various perception of physicians regarding it in order to propose measures for improvements.METHODS: Medical specialists in national cancer screening institutions selected through stratified random sampling were subjected to face-to-face interview using a structured questionnaire. We investigated physicians' perception on effectiveness of lung cancer screening depending on screening modality, selection criteria for subjects of screening, types of equipment used to screen, and perception for seriousness of adverse effects following the test. In addition, odds ratios to underestimate risk of radiation exposure from screening were calculated through logistic regression analysis.RESULTS: Each response that chest X-ray is effective for lung cancer screening and that smoking history is not considered prior to screening recommendation accounted for more than 60% of respondents, suggesting the chance of unnecessary screening tests. Regarding adverse effects of lung cancer screening, about 85% of respondents replied that false positive, radiation exposure, and overdiagnosis could be ignored. About 70% of respondents underestimated radiation dose from lung cancer screening, and a low proportion of physicians informed patients of radiation exposure risk.CONCLUSIONS: It was found that most physicians underestimated harms of lung cancer screening including radiation exposure and were lack of awareness regarding lung cancer screening. It should be noted that physicians need to have proper perceptions about screening recommendation and accompanying possible harms, for successful implementation of the screening program.
Early Detection of Cancer ; Health Care Surveys ; Humans ; Korea ; Logistic Models ; Lung Neoplasms ; Lung ; Mass Screening ; Medical Overuse ; Odds Ratio ; Patient Selection ; Radiation Exposure ; Radiography ; Smoke ; Smoking ; Specialization ; Surveys and Questionnaires ; Thorax

OBJECTIVES: Through a survey on perception of lung cancer screening and accompanying medical radiation exposure in Korea, the present study was to investigate its current situations and evaluate various perception of physicians regarding it in order to propose measures for improvements. METHODS: Medical specialists in national cancer screening institutions selected through stratified random sampling were subjected to face-to-face interview using a structured questionnaire. We investigated physicians' perception on effectiveness of lung cancer screening depending on screening modality, selection criteria for subjects of screening, types of equipment used to screen, and perception for seriousness of adverse effects following the test. In addition, odds ratios to underestimate risk of radiation exposure from screening were calculated through logistic regression analysis. RESULTS: Each response that chest X-ray is effective for lung cancer screening and that smoking history is not considered prior to screening recommendation accounted for more than 60% of respondents, suggesting the chance of unnecessary screening tests. Regarding adverse effects of lung cancer screening, about 85% of respondents replied that false positive, radiation exposure, and overdiagnosis could be ignored. About 70% of respondents underestimated radiation dose from lung cancer screening, and a low proportion of physicians informed patients of radiation exposure risk. CONCLUSIONS It was found that most physicians underestimated harms of lung cancer screening including radiation exposure and were lack of awareness regarding lung cancer screening. It should be noted that physicians need to have proper perceptions about screening recommendation and accompanying possible harms, for successful implementation of the screening program.

PURPOSE: Communicating the harms and benefits of thyroid screening is necessary to help individuals decide on whether or not to undergo thyroid cancer screening. This study was conducted to assess changes in thyroid cancer screening intention in response to receiving information about overdiagnosis and to determine factors with the greatest influence thereon. MATERIALS AND METHODS: Data were acquired from subjects included in the 2013 Korean National Cancer Screening Survey (KNCSS), a nationwide, population-based, cross-sectional survey. Of the 4,100 respondents in the 2013 KNCSS, women were randomly subsampled and an additional face-to-face interview was conducted. Finally, a total of 586 female subjects were included in this study. Intention to undergo thyroid cancer screening was assessed before and after receiving information on overdiagnosis. RESULTS: Prior awareness of overdiagnosis in thyroid cancer screening was 27.8%. The majority of subjects intended to undergo thyroid cancer screening before and after receiving information on overdiagnosis (87% and 74%, respectively). Only a small number of subjects changed their intention to undergo thyroid cancer screening from positive to negative after receiving information on overdiagnosis. Women of higher education level and Medical Aid Program recipients reported being significantly more likely to change their intention to undergo thyroid cancer screening afterreceiving information on overdiagnosis,whilewomen with stronger beliefs on the efficacy of cancer screening were less likely to change their intention. CONCLUSION: Women in Korea appeared to be less concerned about overdiagnosis when deciding whether or not to undergo thyroid cancer screening.
Cross-Sectional Studies ; Early Detection of Cancer ; Education ; Female ; Humans ; Intention ; Korea ; Mass Screening* ; Medical Overuse* ; Surveys and Questionnaires ; Thyroid Gland* ; Thyroid Neoplasms*