• 제목/요약/키워드: epidemiologic methods

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Clinical characteristics and outcomes among pediatric patients hospitalized with pandemic influenza A/H1N1 2009 infection

  • Lee, Eun;Seo, Ju-Hee;Kim, Hyung-Young;Na, Shin;Kim, Sung-Han;Kwon, Ji-Won;Kim, Byoung-Ju;Hong, Soo-Jong
    • Clinical and Experimental Pediatrics
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    • 제54권8호
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    • pp.329-334
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    • 2011
  • Purpose: The purpose of this article is to describe the clinical and epidemiologic features and outcomes among children hospitalized with pandemic influenza A/H1N1 2009 infection. Methods: We retrospectively reviewed the charts of hospitalized pediatric patients (<18 years) diagnosed with pandemic influenza A/H1N1 2009 infection by reverse-transcriptase polymerase chain reaction at a tertiary hospital in Seoul, Korea, between September 2009 and February 2010. Results: A total of 72 children were hospitalized with pandemic influenza A/H1N1 2009 infection (median age, 6.0 years; range, 2 months to 18 years). A total of 40% had at least 1 underlying medical condition, including asthma (17%), malignancies (19%), and heart diseases (17%). Of the 72 patients, 54 (76%) children admitted with H1N1 infection showed radiographic alterations compatible with pneumonia. There was no significant difference in pre-existing conditions between pandemic influenza A/H1N1 infected patients with or without pneumonia. Children with pandemic influenza A/H1N1 pneumonia were more likely to have a lower lymphocyte ratio (P=0.02), higher platelet count (P=0.02), and higher level of serum glucose (P=0.003), and more commonly presented with dyspnea than did those without pneumonia (P=0.04). Conclusions: No significant differences in age, sex, or presence of preexisting conditions were found between children hospitalized with pandemic influenza A/H1N1 H1N1 influenza infection with pneumonia and those without pneumonia. Higher leukocyte count, higher glucose level, and a lower lymphocyte ratio were associated with the development of pandemic A/H1N1 2009 influenza pneumonia.

한국인 어지럼증 환자의 최근 4년간 한방 진료 양태 (Oriental Medical Treatment Pattern of Korean Patients with Dizziness or Vertigo)

  • 김재영;정선영;박삼민;황동규;고영탁
    • 동의신경정신과학회지
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    • 제26권3호
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    • pp.225-234
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    • 2015
  • Objectives: We aimed to evaluate the use of Korean medicine in patients with dizziness or vertigo, since such study has not been performed previously. Methods: In the current study, we included 3 diagnoses i.e., Disorders of vestibular function (H81), Vertiginous syndromes in diseases classified elsewhere (H82), and Dizziness and giddiness (R42) from the Health Insurance Review and Assessment Service (HIRAS) database for 4 years. We analyzed the database and compared treatment with Korean vs. Western medicine. Results: 1. Korean medical visits and cost have been increasing for 4 years, except 2011. Western medical visits are 11.9 times higher than Korean medical visits. 2. The number of women who received Korean medicine was 2.6 times higher than that of men. 3. Among all ages, the 70~79 years group were the most frequent users of Korean medicine. The older age was correlated with more patients' visits. 4. The comparative number of visits by patient care type for 4 years indicated that outpatients had more visits than hospitalization. Furthermore, outpatient visits have been increasing for 4 years. 5. The comparative number of visits by hospital type for 4 years indicated that visits to the Korean medical clinic were the highest. In primary care, patients used more Korean medicine than Western medicine. In tertiary care, patients used more Western medicine than Korean medicine. 6. Korean medical cost per patient by patient care type for 4 years was a total 89,000 won, hospitalization 449,000 won and outpatient 83,000 won. Costs of all patient care types have been increasing. 7. Korean medical cost per patient by hospital type for 4 years was 156,000 won for Korean medical hospital, 83,000 won for local clinic and 127,000 won for miscellaneous facilities. Costs of all types have been increasing. Conclusions: This study provided objective information about epidemiologic characteristics of Korean medicine in patients with dizziness or vertigo. Furthermore, it provides an understanding of the recent status and forms the basis for further expansion of demand for Korean medicine among patients with dizziness or vertigo.

장기요양 인정자의 신체적 및 정신적 기능 상태와 삶의 질과의 관계 (Relationship Between Status of Physical and Mental Function and Quality of Life Among the Elderly People Admitted from Long-Term Care Insurance)

  • 김형선;배남규;권인선;조영채
    • Journal of Preventive Medicine and Public Health
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    • 제43권4호
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    • pp.319-329
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    • 2010
  • Objectives: This study was performed to determine the levels of quality of life (QOL) according to the grade of long-term care service for the elderly people who were admitted from long-term care insurance, and to reveal its association with the physical and mental functioning such as the Activity of Daily Living (ADL), the Instrumental Activity of Daily Living (IADL), the Center for Epidemiologic Studies Depression Scale (CES-D), and the Mini-Mental State Examination-Korean version (MMSE-K). Methods: The interviews were performed during the period from March 1 to May 31, 2009, for 958 elderly people in urban and rural areas. The questionnaire items included various indices such as the ADL, IADL, CES-D, and MMSE-K, as independent variables and the index of QOL, as the dependent ones. For statistical analysis, t-tests were used for the mean scores of QOL according to gender and the grade of long-term care services, and Spearman's correlation was used for each variable. The effects of physical and mental functioning for QOL were assessed by covariance structure analysis. The statistical significance was set at p<0.05. Results: The mean scores of QOL among all the subjects was $55.4{\pm}15.62$ (Grade I: $49.7{\pm}14.17$, Grade II: $56.8{\pm}14.62$, Grade III: $59.4{\pm}16.36$), and it was lower according to the higher grade of long-term care insurance. In terms of the correlation matrix of the QOL and the physical and mental function factors, the QOL showed positive correlation with the ADL, IADL and MMSE-K, while it had negative correlation with depression. On the analysis of covariance, mental functioning (depression and the MMSE-K) had a greater influence on the level of QOL than the physical functioning (ADL and IADL). Conclusions: The level of the QOL in the elderly people who were admitted from long-term care insurance was lower according to higher the grade of long-term care insurance. Also, the mental functioning (depression and MMSE-K) was more influential on the level of the QOL than the physical functioning (ADL and IADL).

강박장애 및 아임상형 강박장애의 평생 유병률과 병발성 (Lifetime Prevalence and Comorbidity in Obsessive-Compulsive Disorder and Subclinical Obsessive-Compulsive Disorder in Korea)

  • 홍진표;이동은;함봉진;이준영;서동우;조성진;박종익;이동우;배재남;박수빈;조맹제
    • 대한불안의학회지
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    • 제5권1호
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    • pp.29-35
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    • 2009
  • Background : In spite of the worldwide relevance of obsessive-compulsive disorder Ed-highlight : Unclear. Perhaps consider changing word choice. (OCD), there are considerable differences in prevalence, sex ratio, comorbidity patterns, and sociodemographic correlates. Data on subclinical OCD have been sparse to date. Methods : Data stemmed from the Korea Epidemiologic Catchment Area (KECA) study which had been carried out from April to December 2001. Korean versions of DSM-IV adapted Composite International Diagnostic Interview were administered to a representative sample of 6275 persons aged 18-64 living in the community. DSM-IV based criteria for subclinical OCD were applied. Results : The lifetime prevalence rates for OCD and subclinical OCD were 0.8% and 6.6%, respectively. In both OCD and subclinical OCD, the rates for males and females were not statistically different. OCD was demonstrated to be associated with depressive disorder, bipolar disorder, social phobia, generalized anxiety disorder, and alcohol and nicotine dependence. Additionally, subclinical OCD was associated with posttraumatic stress and somatoform disorders. Comorbidity rates in subclinical OCD were lower than those in OCD. Conclusions : The lifetime prevalence rate for OCD was less than 1% in the Korean general population. Age distribution and comorbidity patterns suggest that subclinical OCD represents a broad and heterogeneous syndrome and not simply a milder form of OCD.

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Male Breast Cancer: 20 Years Experience of a Tertiary Hospital from the Middle Black Sea Region of Turkey

  • Serarslan, Alparslan;Gursel, Bilge;Okumus, Nilgun Ozbek;Meydan, Deniz;Sullu, Yurdanur;Gonullu, Guzin
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권15호
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    • pp.6673-6679
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    • 2015
  • Background: Male breast cancer is a rare neoplasm, and its treatments are based on those of female breast cancer. This study aimed to analyze 20 years of male breast cancer clinical characteristics and treatment results from the Middle Black Sea Region of Turkey. Materials and Methods: A retrospective analysis of 16 male breast cancer patients treated in our tertiary hospital between 1994 and 2014 was performed. Epidemiologic data, tumor characteristics, and treatments were recorded and compared with 466 female breast cancer ((premenopausal; n = 230) + (postmenopausal n = 236)) patients. The 5-year disease-free and overall survival rates were calculated. Results: Male breast cancer constituted 0.1% of all malignant neoplasms in both sexes, 0.2% of all malignant neoplasms in males, and 0.7% of all breast cancers. The mean patient age in this study was $59.8{\pm}9.5$ (39-74) years. The mean time between first symptom and diagnosis was $32.4{\pm}5.3$ (3-60) months. Histology revealed infiltrative ductal carcinoma in 81.3% of patients. The most common detected molecular subtype was luminal A, in 12 (75%) patients. Estrogen receptor rate (93.8%) in male breast cancer patients was significantly higher than that in female breast cancer (70.8% in all females, p = 0.003; 68.2% in postmenopausal females, p = 0.002) patients. Most of the tumors (56.3%) were grade 2. Tumor stage was T4 in 50% of males. The majority (56.3%) of the patients were stage III at diagnosis. Surgery, chemotherapy, radiotherapy and endocrine-therapy were applied to 62.5%, 62.5%, 81.2% and 73.3%, respectively. Loco-regional failure did not occur in any of the cases. All recurrences were metastastic. The 5-year disease-free and overall survival rates in male breast cancer patients were 58% and 68%, respectively. Conclusions: Tumors found in male breast cancer patients were similar in size to tumors found in females, but they advanced to T4 stage more rapidly because of the lack of breast parenchymal tissues. The rate of estrogen receptor expression tended to be higher in male breast cancer patients than in female breast cancer patients. Metastasis is the most important problem in initially non-metastatic male breast cancer patients.

A 10-year Study of Esophageal Cancer in Guilan Province, Iran: The Guilan Cancer Registry Study (GCRS)

  • Mansour-Ghanaei, Fariborz;Heidarzadeh, Abtin;Naghipour, Mohammad Reza;Joukar, Farahnaz;Valeshabad, Ali Kord;Fallah, Mohammad-Sadegh;Rezvani, Seyed Mahmoud;Sedigh-Rahimabadi, Massih;Rokhshad, Hasan;Dadashi, Arsalan
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권12호
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    • pp.6277-6283
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    • 2012
  • Background: Northern Iran counts as one of the highest prevalence regions for esophageal cancer (EC) worldwide. This study was designed to assess the epidemiologic aspects of EC in north central and northwest Iran over a 10 year period. Materials and Methods: The Guilan cancer registry study (GCRS) is a population-based cancer registry study featuring retrospective (1996-2003) and prospective (2004-2005) phases. A detailed questionnaire based on WHO standards for cancer registratration was applied to gather the required information. Two trained physicians coded information using ICD-O-3 in close coordination with an expert pathologist. Results: A total of 19,936 cases of malignancy (mean age $55.4{\pm}18.0$ years, range: 1-98 years) were registered, including 1,147 cases (670 males, 447 female; mean age: $64.0{\pm}11.5$ years) of EC. In 1996 the male/female ratio among patients with EC was 1.25 which increased to 1.53 in 2005. The lower third of the esophagus still remained the most common site of tumors. The average age-standardized rate (ASR) was 6.9 and 4.1 per $10^5$ men and women, respectively. In 1996, the ASRs were 7.2 and 5.2 per $10^5$ men and women which decreased to 6.9 and 4.1 per $10^5$ in 2004-2005. Squamous cell carcinoma (SCC) was the most prevalent histological subtype of EC accounting over 80% of cases. Conclusions: However the prevalence of adenocarcinoma (ADC) showed an increase to 18.4%. Guilan province may be considered a relatively low incidence region for EC.

Breast Cancer in Bedouin-Arab Patients in Southern Israel: Epidemiologic and Biologic Features in Comparison with Jewish Patients

  • Lazarev, Irina;Flaschner, Maayan;Geffen, David B.;Ariad, Samuel
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권18호
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    • pp.7533-7537
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    • 2014
  • Background: Breast cancer (BC) is the most frequent cancer type, and the leading cause of death from cancer among women in Israel. The Bedouin-Arab (BA) population in southern Israel is characterized by a high rate of consanguinity, common hereditary disorders, and transition from a semi-nomadic, traditional society to a more sedentary and urbanized society. In this hospital-based study, the demographic and the clinicopathological characteristics of BC in BA were compared with Jewish patients. Materials and Methods: 85 BA patients treated at the Soroka Medical Center, Beer Sheba, during the years 2004-2012, were studied and compared with 180 consecutive Jewish patients treated during the year 2007. Clinicopathological features compared included age, menopausal state, number of births, a history of BC in first-degree relatives, tumor size (T), extent of lymph-node involvement (N), distant metastases (M), stage, grade, estrogen and progesterone receptor (ER/PR), and Her2 status. Types of treatment, relapse rate and site, as well as outcome were also studied. Cox's regression models were applied for studying disease-free, and overall survival. Results: Compared with Jewish patients, BA patients were younger (average age $49{\pm}12$ yrs vs $59{\pm}13$, p<0.001), had a lower rate of BC in first-degree relatives (p<0.001), and a larger number of births ($6{\pm}4.2$ vs $2.5{\pm}1.9$, p<0.001). BA patients had larger tumors (p=0.02), more extensive lymph-node involvement (p=0.002), and more advanced stage (p=0.003). Grade, ER, PR, and Her2 status were similar in the two ethnic groups. Relapse type was most commonly systemic in BA patients (p=0.05), and loco-regional in Jewish patients (p=0.02). Median survival was 63, and 35 months for Jewish and BA patients, respectively (log-rank test, p=0.02). In Cox multivariate analysis, stage and PR status (HR-0.14, p<0.0001; HR-3.11, p=0.046), but not ethnicity, influenced overall survival. Conclusions: BC presents a decade earlier, and with more advanced disease in BA compared with Jewish patients. Biologic parameters including grade, ER, PR, and Her2 status were similar in both groups. Although prognosis was worse in BA than in Jewish patients, it was affected only by stage and PR status, but not by ethnicity.

Demographic and Clinical Characteristics of Primary Frozen Shoulder in a Korean Population: A Retrospective Analysis of 1,373 Cases

  • Cho, Chul-Hyun;Koo, Tae Won;Cho, Nam-Su;Park, Kyoung-Jin;Lee, Bong Gun;Shin, Dongju;Choi, Sungwook;Cho, Seung-Hyun;Kim, Myung-Sun;Ko, Sang-Hun;Kim, Chul-Hong;Park, Jin-Young;Yoo, Yon-Sik
    • Clinics in Shoulder and Elbow
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    • 제18권3호
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    • pp.133-137
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    • 2015
  • Background: The aim of this study was to investigate the demographic and clinical characteristics of patients with primary frozen shoulder in a Korean population. Methods: A total of 1,373 patients whose shoulders were diagnosed with primary frozen shoulder across 11 resident-training hospitals were reviewed retrospectively. Various demographic characteristics and clinical characteristics according to gender and presence of diabetes were evaluated. Results: The average age of patients was 55.4 years. Gender proportion was 58.3% females and 41.7% males. The frozen shoulder involved the non-dominant arm in 60.7% of patients and the bilateral arms in 17.6% of patients. The average duration of symptoms was 8.9 months, and 51.3% of patients had experienced nocturnal pain. Comorbidities associated with frozen shoulder in our sample of patients included diabetes (18.7%), cardiovascular diseases (17.7%), thyroid diseases (5.4%), and cerebrovascular diseases (3.6%). The diabetic group was correlated with the following demographic and clinical characteristics: old age, involvement of the dominant arm, nocturnal pain, long duration of symptoms, and no history of trauma. Further, we found that, in males, having a frozen shoulder was significantly correlated with a history of trauma; in females, having a frozen shoulder was significantly correlated with having thyroid diseases. Conclusions: These demographic data of primary frozen shoulder in the Korean population were consistent with those of previously reported epidemiologic studies. Primary frozen shoulder with diabetes was correlated with old age, bilateral involvement, long duration of symptoms, and nocturnal pain.

제주지역에서 최근 수년간 관찰된 Rotavirus 위장관염의 발생 양상 (The Pattern of Occurence of Rotavirus Gastroenteritis in Jeju Area between 2001 and 2005)

  • 강기수;김재리
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • 제8권2호
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    • pp.113-116
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    • 2005
  • 목 적: 최근 수년간 국내의 rotavirus 위장관염의 유행시기의 변화에 대한 여러 보고가 있었다. 저자들은 최근 수년간 제주지역에서 Rotavirus 위장관염의 유행 양상이 국내의 다른 지역과 구별되는 특징이 있는지 알아보고자 하였다. 방 법: 2001년 12월부터 2005년 6월까지 제주대학교병원 소아과에 급성 위장관염으로 입원한 환아들 중 로타바이러스 검사상 양성으로 나타난 211명의 환아들을 대상으로 하였다. 로타바이러스 감염의 진단은 대변의 면역크로마토그래피상 양성인 경우로 하였다. 결 과: 로타바이러스 위장관염은 2001년 12월에 13명, 2002년에 32명, 2003년에 79명, 2004년에 48명 이었으며 2005년에는(6월까지) 39명에서 진단되었다. 2002년에서 2004년까지 3년간 계절별 분포를 보면 1월에 40명(25.2%), 2월에 56명(35.2%), 3월에 31명(19.5%)이었으며 4월에 23명(14.5%)이었다. 5월에서 12월까지는 모두 9명(5.6%)에서만 나타났다. 따라서 로타바이러스 위장관염이 1월에서 4월까지 집중적으로(94.4%) 발생하며 나머지 기간동안은 환자발생이 매우 적음을 알 수 있었다. 또한 2002년부터 현재까지 계절적 분포의 뚜렷한 변화는 아직 보이지 않았다. 결 론: 최근 수년간 제주지역에서 로타바이러스 위장관염은 계절에 따른 발생 분포에 큰 차이가 없이 주로 1월부터 4월까지 집중되어 발생하였다.

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국내에서 1989년부터 2001년 사이에 세 번 돌발 유행한 홍역의 역학 및 임상적 비교 (Epidemiologic and Clinical Comparisons of Three Measles Outbreaks in Korea(1989~2001))

  • 윤주연;이경일;강진한
    • Pediatric Infection and Vaccine
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    • 제10권2호
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    • pp.223-228
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    • 2003
  • 목 적 : 1989~1990, 1993~94, 2000~01년 3차례 홍역 유행 시기의 홍역 환아들에서 역학 및 임상적 차이가 있는가를 알아보고자 하였다. 방 법 : 3차례의 홍역 유행시 입원한 환아 총 502명의 의무기록지를 후향적으로 분석하였다. 환아군을 유행 시기에 따라 I군(1989~90년, 116명), II군(1993~94년, 127명) 및 III군(2000~01년, 227명)으로 나눈 후 각 군간의 역학적, 임상적 특징에 대해 비교 분석하였다. 결 과 : 연령 분포에서 2세 미만의 비율은 각 군에서 각각 61%, 58% 및 57%로 통계학적으로 유의한 차이를 보이지 않았다. 그러나 2세 이상의 연령분포에서 I군의 2~5세 비율이 21%로, II군의 6~9세 비율이 28% 및 II군의 10세 이상 비율이 21%로 각 군의 같은 연령군에서 유의한 차이를 보였다. 남녀비, MMR 예방 접종률, 총 발열일 및 간염의 빈도에서는 3군간에서 차이를 보이지 않았다. 총 입원일(P=0.019)과 합병증 발생률(P=0.012)에서 III군에 비해 I군에서 유의한 차이를 보였다. 결 론 : 3차례의 연속적으로 유행한 홍역에서, MMR 접종을 받았으나 홍역에 이환된 경우도 있었고, 또한 발생 연령이 세월이 지나감에 따라 유의하게 증가하는 것이 관찰되었다. 이는 홍역 예방접종의 이차적 실패의 가능성도 있음을 시사하는 것으로 향후 지속적인 관심과 연구가 필요할 것으로 사료된다.

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