BACKGROUND: Long screen time hours may be associated with behavioral problems in children. To better understand the relationship between children's behavioral problems and screen time, it the associated risk factors must be subdivided based on the purpose underlying screen use. This study examined the relationship between screen time based on intended usage and behavioral problems in Japan. METHODS: This study included 3,332 children aged between 7-17 years from the Hokkaido Study on Environment and Children's Health. From October 2020 to October 2021, the children and their parents answered questionnaires on the children's screen use duration (never used, <30 min, ≥30 min & <1 hour, ≥1 h & <2 h, ≥2 h) based on seven intended usage categories: watching television/video, video gaming, reading books/comics, sending/receiving e-mail/messages, browsing/posting on social networking services, studying for classes/homework, drawing/editing pictures/photos/videos, along with the Strengths and Difficulties Questionnaire (SDQ). Logistic regression was used to analyze the association between screen time, purpose of children's screen use, and behavioral problems across the 13 SDQ total scores. RESULTS: The mean ± standard deviation age of the participants was 12.4 ± 2.4-years-old, 487 (14.6%) children were determined to have behavioral problems, and the duration of screen time increased with their age. The children's primary purposes for screen use were watching television/video, video gaming, sending/receiving e-mail/messages, and browsing/posting on social networking services. Children who reported playing video games for ≥2 hours on weekdays had higher odds of problematic total difficulties scores than never user (Odds Ratio: 2.10, 95% confidence interval: 1.45-3.06). CONCLUSION Long video gaming screen time is associated with behavioral issues, hyperactivity/inattention, and prosocial behaviors in children. Conversely, watching television and videos for 30 min-1 h per day, using e-mail or messaging, and using social networking services were significantly association with reduced odds ratio for peer relationship problems as compared to children who never engaged in these activities. Longitudinal follow-up is needed to further examine screen time and problem behaviors.
Humans ; Screen Time ; Child ; Japan/epidemiology* ; Male ; Female ; Adolescent ; Problem Behavior/psychology* ; Surveys and Questionnaires ; Child Behavior ; Television/statistics & numerical data* ; Video Games/statistics & numerical data*

The purpose of this study was to clarify the relationship between quality of motion and motor ability in early childhood, as well as the moderating effects of grade and gender. A total of 133 preschoolers (3- to 5-year-old class) were evaluated for quality of motion and motor ability using the “Athletic Aptitude Test II” developed by the Japan Sports Association to assess the fundamental movements of running, jumping, and throwing. Two observers evaluated quality of motion based on movies taken by tablet. The relationship between quality of motion and motor ability was determined using multiple regression analysis. In addition, we clarified the influence of grade and gender on the relationship between quality of motor and motor ability using moderation analysis. A significant relationship was found between quality of motion and motor ability for all movements. Grade moderated the relationship between the quality of running motion and the results of the 25-m run. Gender moderated the relationship between the quality of the throwing motion and the results of softball throwing. These results suggest an association between quality of motion and motor ability in early childhood, and show that improving quality of motion improves motor ability.

Because the corona disaster made group medical training difficult, we conducted resuscitation training for new students and basic medical skills training for fourth-year students without face-to-face instruction using video learning, assessment, and ICT. In the resuscitation training, the students were allowed to take a mannequin home and film themselves performing the resuscitation while learning by video. Later, group and peer assessment were conducted via Zoom, and a significant increase in self-assessment was observed. In the basic medical skills training, the students filmed their own implementation at their own pace while learning by video, and the teachers later conducted video assessment and feedback. The lack of face-to-face instruction made it possible to implement the limb spine training, which had not been possible in previous years. It is necessary to adjust the timing of the video registration by the students and the video assessment by the teachers, and to make further improvements to the system.

BACKGROUND/AIMS: Decreased trough levels of infliximab (TLI) and antibodies to infliximab (ATI) are associated with loss of response (LOR) in Crohn's disease. Two prospective studies were conducted to determine whether TLI or ATI better correlates with LOR (Study 1), and whether TLI could become a predictor of mucosal healing (MH) (Study 2). METHODS: Study 1 was conducted in 108 patients, including those with LOR and remission to compare ATI and TLI in discriminating the 2 conditions based on receiver operating characteristic (ROC) curve analyses. Study 2 involved 35 patients who were evaluated endoscopically. RESULTS: In Study 1, there were no differences between the 2 assays in ROC curve analyses; the TLI cutoff value for LOR was 2.6 µg/mL (sensitivity, 70.9%; specificity, 79.2%), and the ATI cutoff value was 4.9 µg/mL (sensitivity, 65.5%; specificity, 67.9%). The AUROC (area under the ROC curve) of TLI was greater than that of ATI. AUROC was useful for discriminating between the 2 conditions. In Study 2, the TLI was significantly higher in the colonic MH group than in the non-MH group (2.7 µg/mL vs. 0.5 µg/mL, P=0.032). CONCLUSIONS: TLI is better than ATI for clinically diagnosing LOR, and a correlation was observed between TLI and colonic MH.
Antibodies ; Cohort Studies* ; Colon ; Crohn Disease* ; Humans ; Infliximab* ; Prospective Studies* ; ROC Curve ; Sensitivity and Specificity

BACKGROUND/AIMS: Colonic diverticular hemorrhage (DH) was a rare disease until the 1990s, and its incidence has increased rapidly since 2000 in Japan. In recent years, colonic DH has been the most frequent cause of lower gastrointestinal bleeding (LGIB). Nearly all cases of DH are mild, with the bleeding often stopping spontaneously. Some cases, however, require surgery or arterial embolization. In this study, using a cohort at Fukuoka University Chikushi Hospital, we investigated factors associated with severe colonic DH. METHODS: Among patients with LGIB who underwent colonoscopy at our hospital between 1995 and 2013, DH was identified in 273 patients. Among them, 62 patients (22.7%) were defined as having severe colonic DH according to recurrence of bleeding in a short period, and/or the necessity of transfusion, arterial embolization, or surgery. We then evaluated risk factors for severe DH among DH patients in this retrospective cohort. RESULTS: Among the 273 patients with DH, use of non-steroidal anti-inflammatory drugs (NSAIDs) (odds ratio [OR], 2.801; 95% confidence interval [CI], 1.164–6.742), Charlson Risk Index (CRI) ≥2 (OR, 3.336; 95% CI, 1.154–7.353), right-sided colonic DH (OR, 3.873; 95% CI, 1.554–9.653), and symptoms of cerebral hypoperfusion (such as light-headedness, dizziness, or syncope) (OR, 2.926; 95% CI, 1.310–6.535) showed an increased risk of severe DH even after controlling for other factors. CONCLUSIONS: Severe DH occurred in 23% of DH patients, and NSAID use, CRI ≥2, right-sided colonic DH, and symptoms of cerebral hypoperfusion are suggested to be predictors of severe DH.
Anti-Inflammatory Agents, Non-Steroidal ; Cohort Studies ; Colon* ; Colonoscopy ; Dizziness ; Hemorrhage* ; Humans ; Incidence ; Japan ; Rare Diseases ; Recurrence ; Retrospective Studies ; Risk Factors*

Background: In terminally ill patients with cancer, sleep disturbance makes worse their quality of life. Midazolam has not ever been used for the treatment of sleep disturbance in general wards of our hospital, used in palliative care unit of other hospital, however. Method: This is a retrospective study based on chart review. Twenty-eight patients who were treated with midazolam for sleep disturbance included in this study. We designed evaluation methods to strictly follow the actual chart descriptions. Efficacy was rated as good, fair, or poor. Safety was defined by the presence or absence of respiratory depression and hypotension. Results: The median administration periods and initial doses were 6 days (range, 1-151) and 5.0 mg/night (1.8-20.0), respectively. Fourteen patients showed good sleep a night after midazolam infusion, four and nine patients showed fair and poor sleep, respectively. No patient demonstrated a respiratory rate of less than 8/min and systolic blood pressure of <60 mmHg at any point during and after midazolam infusion. Conclusion: Intravenous midazolam appeared to be safe for sleep disturbance of terminally ill patients with cancer in general wards. A future improvement administration methods are necessary to treat for sleep disturbance more effectively as well as PCU.