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SleepTube: 취침 전 영상 시청의 효용 증대를 위한 디지털 자기 통제 도구 제언
정은서(Eunseo Jeong),홍승욱(Seung Wook Hong),송정인(Jeong In Song),임하진(Hajin Lim) 한국HCI학회 2024 한국HCI학회 학술대회 Vol.2024 No.1
오늘날 많은 현대인들은 수면 부족 문제를 겪고 있다. 그중 취침 전 영상 시청 습관은 수면의 질을 악화시키고 수면 부족을 유발하는 주요 원인으로 지적되고 있다. 그러나 취침 전 영상 시청이 반드시 부정적인 영향을 미치는 것은 아니며 오히려 수면의 질을 높이는 것에 효과적이라는 연구 결과 또한 존재한다. 이에 우리는 취침 전 영상을 시청하는 사용자의 다양한 맥락적 요인과 니즈를 이해하고 이를 바탕으로 취침 전 영상 시청 행위를 조절하는 디지털 도구, ‘SleepTube’를 제안하였다. 본 연구는 취침 전 영상 시청 행위에 대해 다각적인 이해를 바탕으로 개개인의 구체적인 시청 상황과 수면 목표에 초점을 둔 디지털 자기 통제 도구의 디자인 방향성을 이끌어냈다는 점에서 의의를 갖는다.
( Eunseo Lee ),( Sunghwan Yoo ),( Sukhyeon Jeong ),( In-jung Kim ),( Sora Kim ),( Hye Young Chang ),( Jung Il Lee ),( Kwan Sik Lee ),( Hyun Woong Lee ) 대한간학회 2020 춘·추계 학술대회 (KASL) Vol.2020 No.1
Aims: Some studies have shown a poor prognosis for hepatocellular carcinoma (HCC) patients whose etiology is viral. This study is to evaluate the outcomes of the patients diagnosed to resectable HCC, according to the etiology of the disease due to the differences in prognosis between viral and non-alcoholic fatty liver disease (NAFLD). Methods: A total of 264 patients who received hepatectomy for the treatment of HCC between 2005 and 2019 were performed a review of medical records. They were divided into groups according to the cause of liver disease, followed by overall and disease-free survival analysis for comparison. Results: The cause of HCC consisted of 222 hepatitis B virus (HBV) (69.4%), 14 hepatitis C virus (HCV) (4.4%), and 28 non-alcoholic steatohepatitis (NASH) (7.9%). There was no statistically significant difference in the sex, tumor stage (BCLC and AJCC 7th) of the groups of patients divided according to the etiology of HCC. However, the mean age was higher in NAFLD (NAFLD 72 years, vs. HBV 62 years, HCV 68 years, P<0.001). The presence of liver cirrhosis was lower in NAFLD (NAFLD 14.3%, vs. HBV 51.8%, HCV 50%, P=0.001). Overall survival (OS) at five years of the patients with HBV, HCV and NAFLD were 88.2%, 74.1%, and 74.6%, respectively (P=0.031). Disease-free survival at five years of patients with HBV, HCV and NAFLD were 72.5%, 69.3%, and 77.9%, respectively (P=0.370). In multivariate analysis, age and baseline AFP were the significant prognostic factors of OS (hazard ratio [HR] for age; 0.938, confidential interval; 0.886-0.994, P=0.03, HR for AFP; 1.000; 1.000-1.000, P=0.001). Conclusions: Baseline age and AFP levels showed significant prognostic differences among the groups of HCC patients of the various etiologies. NAFLD induced HCC had shown slightly lower OS at five years than viral induced HCC.
( Sukhyeon Jeong ),( Sunghwan Yoo ),( Eunseo Lee ),( In Jung Kim ),( Sora Kim ),( Hye Young Chang ),( Jung Il Lee ),( Kwan Sik Lee ),( Hyun Woong Lee ) 대한간학회 2020 춘·추계 학술대회 (KASL) Vol.2020 No.1
Aims: Despite a favorable clinical course, the risk of hepatocellular carcinoma (HCC) still exists in patients achieving HBsAg seroclearance. Previous study has shown that the cumulative incidence rates of HCC at 5 years after HBsAg seroclearance were 1.5%. Therefore, we investigated to the incidence of HCC after naturally and nucleos(t)ide analogue (NA) induced HBsAg seroclearance in real-life clinical practice. Methods: A cohort study was conducted using data from Gangnam Severance Hospital. We identified all subjects with positive HBsAg between January 1, 2001 and March 21, 2018. NA use, liver biochemistries, serial HBsAg and anti-HBs results were retrieved. The primary endpoint was the incidence of HCC after naturally and NA induced HBsAg seroclearance. Results: A total of 109 chronic hepatitis B patients with HBsAg seroclearance were included for analysis. Among them, 24 patients were excluded. HBsAg seroclearance was developed after liver transplantation in 13 patients and after the development of HCC in 11 patients. In patients with spontaneous HBsAg seroclearance (n=51), all patients had confirmed HBsAg seroclearance and there was no HBsAg seroreversion. In patients with NA-induced HBsAg seroclearance (n=34), all patients had confirmed HBsAg seroclearance and HBsAg seroreversion was observed in just one patients (male, 37years, heavy alcoholics). At a mean follow-up of 9 years, there was no incidence of HCC in patients with naturally and NA-induced HBsAg seroclearance. Conclusions: The incidence of HCC was extremely rare after naturally and nucleos(t)ide analogue (NA) induced HBsAg seroclearance in real-life clinical practice. NA-induced HBsAg seroclearance is also as durable as naturally HBsAg seroclearance.