• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.31 no.4
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• pp.214-224
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• 2020

Objectives: This study aimed to examine the trend in diagnostic prevalence of psychiatric disorders in children and adolescents. Methods: Individuals aged 0-18 years were included in the study based on the National Health Insurance Claims Data. To investigate the trends in diagnosis and diagnostic prevalence of psychiatric disorders reflecting the decrease in the birth rate, data were analyzed from 2010 as a reference year to 2015. Results: The number of patients diagnosed with psychiatric disorder decreased annually, from 23,412 on 2010 to 18,821 on 2015. The most common disorder was hyperkinetic disorder in male and depressive episode in female. Although there was no significant change in overall diagnostic prevalence rate of psychiatric disorders, age groups <10 years and some disorders had significant changes in prevalence rate. This study classified the diagnostic prevalence by age into two unique patterns: group in which the diagnosis rate increases with age and group in which the diagnosis rate peaks at a certain age and then decreases. Conclusion: Diagnostic prevalence of psychiatric disorders was different according to age and sex. These patterns should be reflected in the formulation of policies related to mental health and in medical practice for pediatric patients. It is urgent to identify how these patterns change in young adults.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.3
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• pp.1590-1598
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• 2014

Based on an analysis on the difference on the measurement sites and their relations to osteoporosis diagnosis and prevalence, this study attempts to investigate the patterns of prevalence in skeletal sites in the aging process. The samples were driven by the National Health and Nutrition Examination Survey (2008-2010) on Korean females (n = 4,449) aged from 50 to 89 years. The result shows that the differences on affected sites in the aging process were detected as follow: the osteoporosis prevalence in lumbar spine was relatively high in 50s, 60s and 70s; however, the prevalence in the proximal femur (total hip and femoral neck) was higher in 80s. In terms of the diagnosis identified in a single site, the prevalence in lumbar spine seemed to decrease as age increases; but, the rate went up in the figure of femoral neck. Overall, the osteoporosis prevalence for the diagnosis detected in multiple sites was increased as age goes up. In general, the increase in lumbar osteoporosis prevalence starts earlier than that of femoral neck. The findings of this study also suggests that if the proximal femur site is only used for diagnosing women age in 50s, 60s and 70s, the significant portion of osteoporosis patients could be misdiagnosed as normal.

• Parasites, Hosts and Diseases
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• v.47 no.2
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• pp.179-183
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• 2009

Prevalence rates reported for malaria in pregnancy in Nigeria vary considerably. The accuracy of results of malaria diagnosis is dependent on training, experience, and motivation of the microscopist as well as the laboratory facility available. Results of training programmes on malaria microscopy have shown low levels of sensitivity and specificity of those involved in malaria diagnosis routinely and for research. This study was done to ascertain the true prevalence of malaria in pregnancy in Lagos, South-West Nigeria. A total of 1,084 pregnant women were recruited into this study. Blood smears stained with Giemsa were used for malaria diagnosis by light microscopy. Malaria infection during pregnancy presents mostly as asymptomatic infection. The prevalence of malaria in this population was 7.7% (95% confidence interval; 6.2-9.4%). Factors identified to increase the risk of malaria infection include young maternal age (<20 years), and gravidity (primigravida). In conclusion, this study exposes the over-diagnosis of malaria in pregnancy and the need for training and retraining of laboratory staffs as well as establishing the malaria diagnosis quality assurance programme to ensure the accuracy of malaria microscopy results at all levels.

• Research in Community and Public Health Nursing
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• v.33 no.4
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• pp.408-417
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• 2022

Purpose: This study aimed to investigate the prevalence and risk factors of diabetic retinopathy (DR) in people with diabetes mellitus (DM) using Korean National Health and Nutrition Examination Survey VII (2017~2018). Methods: DM was defined as in two ways; 1) doctor's diagnosis (Group 1, n=549), 2) one of doctor's diagnosis, medication, or hyperglycemia (Group 2, n=849). The DR prevalence was measured as the prevalence proportion (%). Risk factors for developing DR were analyzed using multiple logistic regression, and odds ratios (ORs) and 95% confidence intervals (CIs) were calculated. Results: The prevalence of DR was 25.87% in Group 1 and 20.14% in Group 2. Risk factors for DR were identified as insulin therapy (Group 1: OR=5.31, Group 2: OR=5.27), DM duration ≥10 years (Group 1: OR=2.20, Group 2: OR=3.10), and systolic blood pressure ≥140 mmHg (Group 1: OR=2.26, Group 2: OR=2.23) for both groups. Conclusion: Considering the DR prevalence, eye examinations education is highly recommended as part of a diabetes management programs in the community. It is also proposed to shorten the eye examination cycle for people with risk factors and establish a referral system to link between screening to treatment.

• Restorative Dentistry and Endodontics
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• v.47 no.4
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• pp.39.1-39.12
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• 2022

Objectives: This study investigated the prevalence and characteristics of external cervical resorption (ECR) regarding sex, age, tooth, stages of progression, and portal of entry, using cone-beam computed tomography (CBCT) scans. Materials and Methods: CBCT scans of 1,313 patients from a Brazilian subpopulation comprising 883 female and 430 male patients (mean age, 55.2 years), acquired using a PreXion 3D CBCT unit, were evaluated. All permanent teeth included in the scans were evaluated for the presence of ECR according to the 3-dimensional classification and the portal of entry. The association between the presence of ECR and the factors studied was assessed using the χ² test. Intra-observer agreement was analyzed with the kappa test (α = 0.05). Results: In total, 6,240 teeth were analyzed, of which 84 (1.35%) were affected by ECR. A significant association was found between the presence of ECR and sex, with a higher prevalence in male patients (p = 0.002). The most frequently affected teeth were the mandibular and maxillary central incisors. The most common height was the mid-third of the root. For the portal of entry, 44% of cases were on the proximal surfaces, 40.5% on the lingual/palatal surface and 15.5% on the buccal surface. Intra-observer agreement was excellent. Conclusions: The prevalence of ECR was 1.35%, with a higher prevalence in male patients and a wide age distribution. The mandibular and maxillary central incisors were the most commonly affected teeth, and cases of ECR most frequently showed a height into the mid-third of the root and proximal entry.

• The Journal of the Convergence on Culture Technology
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• v.10 no.1
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• pp.105-110
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• 2024

Among those who participated in the 8th 1st year of the National Health and Nutrition Examination Survey (2019), diabetes patients were divided into 4 types and the prevalence and diagnosis rates of diabetes were investigated by age group. In addition, we analyzed the correlation between glycated hemoglobin levels and body weight, waist circumference, cholesterol, triglyceride levels, weight-adjusted waist circumference, and body mass index in patients already diagnosed with diabetes. As a result of the study, the prevalence of diabetes in 2019 was 16.03%, and male The prevalence rate for men continued to increase after the 30s, and that for women was lower than that for men until the 40s, but increased rapidly after the 50s and became similar to that of men after the 70s. In the diabetes diagnosis group, the glycated hemoglobin level had a low and non-significant correlation with weight, waist circumference, BMI, and WWI levels, but showed a correlation coefficient of 0.178 with the triglyceride level, and the p value was less than 0.001, which was statistically very significant.

• Journal of Gastric Cancer
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• v.11 no.1
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• pp.7-15
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• 2011

Osteoporosis in gastric cancer patients is often overlooked or even neglected despite its high prevalence in these patients. Considering that old age, malnutrition, chronic disease, chemotherapy, decreased body mass index and gastrectomy are independent risk factors for osteoporosis, it is reasonable that the prevalence of osteoporosis in gastric cancer patients would be high. Many surviving patients suffer from back pain and pathological fractures, which are related to osteoporosis. Fractures have obvious associated morbidities, negative impact on quality of life, and impose both direct and indirect costs. In the era of a >55.6% 5-year survival rate of gastric cancer and increased longevity in gastric cancer patients, it is very important to eliminate common sequelae such as osteoporosis. Fortunately, the diagnosis of osteoporosis is well established and many therapeutic agents have been shown to be effective and safe not only in postmenopausal females but also in elderly males. Recently, effective treatments of gastric cancer patients with osteoporosis using bisphosphonates, which are commonly used in postmenopausal woman, were reported.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.17 no.2
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• pp.85-92
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• 2014

Recently, the incidence and prevalence of obesity and dyslipidemia are increasing. Dyslipidemia is associated with significant comorbidities and complications, and with cardiovascular risk factors (obesity, diabetes mellitus, hypertension and smoking). The main objectives of this article are that describe the prevalence of dyslipidemia in Korean children and adolescents and review the diagnosis and management of dyslipidemia in children and adolescents.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.27 no.4
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• pp.206-214
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• 2024

Purpose: Few studies have reported the prevalence of inflammatory bowel disease unclassified (IBDU) among Korean pediatric IBD (PIBD) population. To address this gap, we used two tertiary centers and nationwide population-based healthcare administrative data to estimate the prevalence of Korean pediatric IBDU at the time of diagnosis. Methods: We identified 136 patients aged 2-17 years with newly diagnosed IBD (94 Crohn's disease [CD] and 42 ulcerative colitis [UC]) from two tertiary centers in Korea between 2005 and 2017. We reclassified these 136 patients using the revised Porto criteria. To estimate the population-based prevalence, we analyzed Korean administrative healthcare data between 2005 and 2016, which revealed 3,650 IBD patients, including 2,538 CD and 1,112 UC. By extrapolating the reclassified results to a population-based dataset, we estimated the prevalence of PIBD subtypes. Results: Among the 94 CD, the original diagnosis remained unchanged in 93 (98.9%), while the diagnosis of one (1.1%) patient was changed to IBDU. Among the 42 UC, the original diagnosis remained unchanged in 13 (31.0%), while the diagnoses in 11 (26.2%), 17 (40.5%), and one (2.4%) patient changed to atypical UC, IBDU, and CD, respectively. The estimated prevalences of CD, UC, atypical UC, and IBDU in the Korean population were 69.5%, 9.4%, 8.0%, and 13.1%, respectively. Conclusion: This study is the first in Korea to estimate the prevalence of pediatric IBDU. This prevalence (13.1%) aligns with findings from Western studies. Large-scale prospective multicenter studies on PIBDU are required to examine the clinical features and outcomes of this condition.

• Journal of Oral Medicine and Pain
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• v.18 no.2
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• pp.55-69
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• 1993

The purpose of this study is investigation on prevalence and clinical characteristics of headache among 10-39 years men and women. Information could be obtained with the questionnaire, and 1952 respondents completed the questionnaire. All participants were asked if they had experienced headache. Those responding positively were further questioned regarding the frequency, severity, character, location and duration of headache and were questioned regarding the experience of medical cunsultation and taking analgesics. The obtained results were as follows : 1. The life time prevalence of headache was 49.6% among men, 70.8% among women and 61.5% in all. 2. The prevalence of episodic tension type headache, chronic tension type headache, migraine, mixed type headache in this population was 27.1%, 5.0%, 2.8%, 23.1% respectively. 3. Headache duration was classified as less than 1 hour, 1-6 hours, 6012 hours, more than 12 hours for 1 day. The percentage of each other case is 41.8%, 46.2%, 7.4% and 4.4% of headache suffers respectively. 4. As regards the severity of headache, 4.2% of headache suffers had a very mild pain intensity, 17.9% a mild pain, 57.7% a moderate pain, 18.1% a severe pain and 2.2% a quite severe pain. 5. Headache occured at morning in 8.2% of headache suffers, at afternoon in 9.4%, at evening in 18.1%, at night in 4.3% and at anytime in 59.9%. 6. 11.7% of headache suffers among men consulted doctor, 13.9% among women and 13.1% in all. 7. 66.2% of headache suffers didnt have any analgesics because of their pain, 33.8% of headache suffers had analgesics because of their pain.