Obesity is a prevalent global-health problem associated with substantial morbidity, impairment and economic burden. Because most readily available forms of treatment are ineffective in the long term, it is essential to advance knowledge of obesity prevention by identifying potentially modifiable risk factors. Findings from experimental studies in non-human primates suggest that adverse childhood experiences may influence obesity risk. However, observations from human studies showed heterogeneous results. To address these inconsistencies, we performed Medline, PsycInfo and Embase searches till 1 August 2012 for articles examining the association between childhood maltreatment and obesity. We then conducted a meta-analysis of the identified studies and explored the effects of various possible sources of bias. A meta-analysis of 41 studies (190 285 participants) revealed that childhood maltreatment was associated with elevated risk of developing obesity over the life-course (odds ratio=1.36; 95% confidence interval=1.26-1.47). Results were not explained by publication bias or undue influence of individual studies. Overall, results were not significantly affected by the measures or definitions used for maltreatment or obesity, nor by confounding by childhood or adult socioeconomic status, current smoking, alcohol intake or physical activity. However, the association was not statistically significant in studies of children and adolescents, focusing on emotional neglect, or adjusting for current depression. Furthermore, the association was stronger in samples including more women and whites, but was not influenced by study quality. Child maltreatment is a potentially modifiable risk factor for obesity. Future research should clarify the mechanisms through which child maltreatment affects obesity risk and explore methods to remediate this effect.
When prolonged social withdrawal was first described in Japan as ‘hikikomori’, many studies examining its etiology suggested it to be related to factors unique to Japan and thus a culture-bound syndrome. However, existing research has suffered from a lack of standardised definitions, impeding comparability between studies. We summarise existing research and discuss its relevance to psychiatric practice today.
Our study shows that the rates of neutropenia in clozapine-treated children and adolescents are considerably higher than in the adult population. Younger age, African American ethnicity, and male gender were significant risk factors. These are also risk factors for benign neutropenia in healthy children and adolescents. Despite these high rates of neutropenia, all but one of the patients with neutropenia during hospitalization were successfully discharged on clozapine.
Background Hikikomori is a form of severe social withdrawal that is particularly prevalent in Japan. Social media posts offer insight into public perceptions of mental health conditions and may also inform strategies to identify, engage, and support hard-to-reach patient populations such as individuals affected by hikikomori. Objective In this study, we seek to identify the types of content on Twitter related to hikikomori in the Japanese language and to assess Twitter users’ engagement with that content. Methods We conducted a mixed methods analysis of a random sample of 4940 Japanese tweets from February to August 2018 using a hashtag (#hikikomori). Qualitative content analysis included examination of the text of each tweet, development of a codebook, and categorization of tweets into relevant codes. For quantitative analysis (n=4859 tweets), we used bivariate and multivariate logistic regression models, adjusted for multiple comparisons, and estimated the predicted probabilities of tweets receiving engagement (likes or retweets). Results Our content analysis identified 9 codes relevant to tweets about hikikomori: personal anecdotes, social support, marketing, advice, stigma, educational opportunities, refuge (ibasho), employment opportunities, and medicine and science. Tweets about personal anecdotes were the most common (present in 2747/4859, 56.53% of the tweets), followed by social support (902/4859, 18.56%) and marketing (624/4859, 12.84%). In the adjusted models, tweets coded as stigma had a lower predicted probability of likes (−33 percentage points, 95% CI −42 to −23 percentage points; P<.001) and retweets (−11 percentage points, 95% CI −18 to −4 percentage points; P<.001), personal anecdotes had a lower predicted probability of retweets (−8 percentage points, 95% CI −14 to −3 percentage points; P=.002), marketing had a lower predicted probability of likes (−13 percentage points, 95% CI −21 to −6 percentage points; P<.001), and social support had a higher predicted probability of retweets (+15 percentage points, 95% CI 6-24 percentage points; P=.001), compared with all tweets without each of these codes. Conclusions Japanese tweets about hikikomori reflect a unique array of topics, many of which have not been identified in prior research and vary in their likelihood of receiving engagement. Tweets often contain personal stories of hikikomori, suggesting the potential to identify individuals with hikikomori through Twitter.
Objective Recently, rational polypharmacy approaches have been proposed, regardless of the lower risk and cost of monotherapy. Considering monotherapy as first-line treatment and polypharmacy as rational treatment, a balanced attitude toward polypharmacy is recommended. However, the high prevalence of polypharmacy led the Japanese government to establish a polypharmacy reduction policy. Based on this, the association between the policy and psychiatrists’ attitude toward polypharmacy has been under debate.Methods We developed an original questionnaire about Psychiatrists’ attitudes toward polypharmacy (PAP). We compared the PAP scores with the treatment decision-making in clinical case vignettes. Multiple regression analyses were performed to quantify associations of explanatory variables including policy factors and PAP scores. The anonymous questionnaires were administered to psychiatrists worldwide.Results The study included 347 psychiatrists from 34 countries. Decision-making toward polypharmacy was associated with high PAP scores. Multiple regression analysis revealed that low PAP scores were associated with the policy factor (β=-0.20, p=0.004). The culture in Korea was associated with high PAP scores (β=0.34, p<0.001), whereas the culture in India and Nepal were associated with low scores (β=-0.15, p=0.01, and β=-0.17, p=0.006, respectively).Conclusion Policy on polypharmacy may influence psychiatrists’ decision-making. Thus, policies considering rational polypharmacy should be established.
This article is a summary of perspectives on training curricula from child and adolescent psychiatry trainees globally. We aimed to identify the relative strengths, weaknesses and gaps in learning needs from a trainee's perspective. The 20 early-career child psychiatrists who contributed are from 16 countries and represent all the five continents. We could identify some global challenges as well as local/regional challenges that need to be addressed to develop competent child psychiatrists.
BACKGROUND Hikikomori is a form of severe social withdrawal that is particularly prevalent in Japan. Social media posts offer insights into public perceptions of mental health conditions, and also may inform strategies to identify, engage with care, and support hard-to-reach patient populations such as individuals affected by hikikomori. OBJECTIVE We sought to identify types of contents prevalent on Twitter related to hikikomori in Japanese language, and to assess the users’ engagement elicited by those contents. METHODS We conducted a mixed-methods analysis of a random sample of 4,940 Japanese tweets from February-August 2018 with the hashtag (#hikikomori). Qualitative content analysis included examination of the text of tweets, development of a codebook, and categorization of tweets into relevant codes. For quantitative analysis (n=4,859 tweets), we used bivariate and multivariate logistic regression models, adjusted for multiple comparisons, and estimated predicted probabilities of tweets receiving engagement (likes or retweets). RESULTS Our content analysis identified nine codes relevant to tweets about hikikomori: ‘personal anecdotes’, ‘social support’, ‘marketing’, ‘advice’, ‘stigma’, ‘educational opportunities’, ‘refuge (“ibasho”)’, ‘employment opportunities’, and ‘medicine and science’. Tweets about ‘personal anecdotes’ were most common (present in 56% of the tweets), followed by ‘social support’ (18.6%) and ‘marketing’ (12.8%). In adjusted models, tweets coded as ‘stigma’ had a lower predicted probability of receiving likes (-33 percentage points; 95% CI, -42 to -23 percentage points; p < .001) and retweets (-11 percentage points; 95% CI, -18 to -4 percentage points; p <. 001), ‘personal anecdotes’ had a lower predicted probability of receiving retweets (-8 percentage points; 95% CI, -14 to -3 percentage points; p = 0.002), ‘marketing’ had lower predicted probability of receiving likes (-13 percentage points; 95% CI, -21 to -6 percentage points; p < .001), and ‘social support’ had higher predicted probability for retweets (+15 percentage points; 95% CI, +6 to +24 percentage points; p = 0.001), compared with all tweets without each of these codes. CONCLUSIONS Japanese tweets about hikikomori reflect a unique array of topics, many of which have not been identified in prior research and vary in their likelihood of receiving engagement. Tweets often contain personal stories of hikikomori, suggesting the potential to identify individuals with hikikomori through Twitter.
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