Coital Experience Among Adolescents in Three Social-Educational Groups in Urban Chiang Mai, Thailand

This article compares coital experience of Chiang Mai 17–20-year-olds who were: (1) out-of-school; (2) studying at vocational schools; and (3) studying at general schools or university. Four-fifths, two-thirds and one-third, respectively, of males in these groups had had intercourse, compared to 53, 62 and 15 per cent of females. The gender difference for general school/university students, but not vocational school students, probably reflects HIV/AIDS refocusing male sexual initiation away from commercial sex workers. Vocational school females may have been disproportionately affected. Loss of virginity was associated, for both sexes, with social-educational background and lifestyle, and was less likely in certain minority ethnic groups. Among males, it was also associated with age and parental marital dissolution, and among females, with independent living and parental disharmony. Within social-educational groups, lifestyle variables dominated, but among general school/university students, parental marital dissolution (for males) and disharmony (for females) were also important, and Chinese ethnicity deterred male sexual experimentation

The implications of rural perceptions of water scarcity on differential adaptation behaviour in Rajasthan, India

Water scarcity is one of the most critical issues facing agriculture today. To understand how people manage the risk of water scarcity and growing pressures of increased climate variability, exploring perceptions of risk and how these perceptions feed into response behaviour and willingness to adapt is critical. This paper revisits existing frameworks that conceptualise perceptions of environmental risk and decision-making, and uses empirical evidence from an in-depth study conducted in Rajasthan, India, to emphasise how individual and collective memories, and experience of past extreme events shape current definitions and future expectations of climatic risks. In doing so, we demonstrate the value of recognising the role of local perceptions of water scarcity (and how they vary between and within households) in constructing social vulnerability. We also discuss the implications of these perceptions of risk when understanding and incentivising local adaptation pathways

Pathogenesis and virulence of Vibrio harveyi from southern part of Thailand in black tiger shrimp, Penaeus monodon Fabricius

Ten isolates of bacteria were performed from diseased black tiger shrimp collected from farms in Nakhon Si Thammarat, Patthalung, Songkhla, Satun and Patthani. All isolates belonged to Vibrio harveyi, forming rounded colonies with smooth periphery and hemolysis of red blood cells. The colonies appearedgreen and yellow on TCBS selective media and indeeded both luminescent and non-luminescent groups. To support good growth as cell proliferation, an addition of 2-8% salt to the culture media was required. Sensitivity tests against antibiotics showed that all ten isolates were sensitive to chloramphenicol, norfloxacin, trimethoprim-sulfamethoxazole, oxolinic acid, oxytetracyclin and sarafloxacin at 80, 60, 50, 40, 40 and 30%, respectively. When 12-15 g juvenile shrimp were tested for the virulence by injection, the isolates were highly virulent with OD at 640 nm in the range 0.007-0.139. The bacteria concentration of 1.60×106 - 7.27×107 CFU/ ml caused 50% juvenile mortality in ten days. The physiological changes after susceptibility included a decline in the blood cells (p<0.05), higher plasma pH (p<0.05), decrease in serum protein within 24 h (p<0.05), and a return to normal levels within 48 h. There were no differences in blood sugar levels and phenoloxidase activity between the healthy and the infected individuals. Histological study showed that at an early period of susceptibility, there were swollen tubular lumen, minor cell degeneration of the hepatic tubules and lymphoid organs and aggregation of blood cells around the degenerating cells. During 7-day susceptibility period, there was large scale cell degeneration of the hepatopancreas, lymphoid organs, gills and blood formingorgans with a great extent of blood cell aggregation and eventually mortalities occurred. During 14 day susceptibility period, there was almost entire degeneration of cells in hepatic tubules and lymphoid organs causing hepatopancreatic tubular necrosis. During this period, juveniles did not accept feed and total mortality occurred

Grit is associated with lower level of depression and anxiety among university students in Chiang Mai, Thailand: A cross-sectional study.

BACKGROUND:Depression and anxiety symptoms are prevalent among university students in both developed and developing settings. Recently, grit, defined as perseverance and passion for long-term goals, has emerged as an indicator of success and well-being. However, the relationship between grit and poor mental health outcomes among university students is largely unknown. The current study investigates the relationship of grit with depression and anxiety among university students in Chiang Mai, Thailand. METHODS:This cross-sectional study was conducted from January to March 2018 among university students aged 18-24 years from Chiang Mai University, the first largest university in Chiang Mai Province. Depression and anxiety were assessed with the Patient Health Questionnaire (PHQ-9) and the Generalized Anxiety Disorder (GAD-7) Scales, respectively. Grit was measured using the 8-item Short Grit Scale (GRIT-S). Grit scores were grouped into three categories: low (below the 25th percentile); average (from the 25th to the 75th percentiles); and high (above the 75th percentile). The other covariates included variables such self-esteem and socio-demographic variables. RESULTS:Of the 800 participants included in the study, 405 (50.6%) were female and 395 (49.4%) were male. Respectively 21.4% and 7.8% of the participants had depression and clinical symptoms of GAD. Increasing levels of grit negatively correlated with PHQ-9 and GAD-7 scores. Participants with high level of grit scored respectively 1.69 points (P <0.001) and 1.71 points (P < 0.001) lower on the PHQ-9 scale and GAD-7 scores. Similarly, self-esteem was negatively associated with PHQ-9 and GAD-7 scores. CONCLUSION:Our findings highlight the negative correlation of grit with poor mental health outcomes, particularly depression and anxiety. Interventions designed to improve grit could play an essential role in the prevention of adverse mental health outcomes among university students

Association of excessive smartphone use with psychological well-being among university students in Chiang Mai, Thailand.

BackgroundDespite the pervasive use of smartphones among university students, there is still a dearth of research examining the association between smartphone use and psychological well-being among this population. The current study addresses this research gap by investigating the relationship between smartphone use and psychological well-being among university students in Thailand.MethodsThis cross-sectional study was conducted from January to March 2018 among university students aged 18-24 years from the largest university in Chiang Mai, Thailand. The primary outcome was psychological well-being, and was assessed using the Flourishing Scale. Smartphone use, the primary independent variable, was measured by five items which had been adapted from the eight-item Young Diagnostic Questionnaire for Internet Addiction. All scores above the median value were defined as being indicative of excessive smartphone use.ResultsOut of the 800 respondents, 405 (50.6%) were women. In all, 366 (45.8%) students were categorized as being excessive users of smartphones. Students with excessive use of smartphones had lower scores the psychological well-being than those who did not use smartphone excessively (B = -1.60; P ConclusionThis study provides some of the first insights into the negative association between excessive smartphone use and the psychological well-being of university students. Strategies designed to promote healthy smartphone use could positively impact the psychological well-being of students

"When I first saw a condom, I was frightened": A qualitative study of sexual behavior, love and life of young cross-border migrants in urban Chiang Mai, Thailand.

Many young migrant workers move across the border to Chiang Mai, a major city in Northern Thailand, in search of work opportunities. This study describes their sexual behavior, lifestyles, relationships and experiences with youth-friendly sexual and reproductive health (SRH) services.This is the qualitative arm of a mixed methods study using focus group discussions (FGDs) among young MWs aged 15-24 years in urban Chiang Mai. We conducted 6 FGDs with 84 participants (43 males, 41 females) organized in groups of 10-15 people, including 3 groups of males, 2 groups of females, and 1 group of both males and females.We found that the lack of parental control, pressure to assimilate into Thai society, access to social media and modern communication technologies, and limited knowledge and access to sexual and reproductive health (SRH) services interplayed to shape lifestyle and sexual behaviors, including low condom use among young migrants.The present study helped discern the vulnerability of young migrants to adverse SRH outcomes. This particular group of youth needs urgent intervention to improve their knowledge on SRH and access to a youth-friendly clinic to help them personalize risk of HIV and other adverse SRH outcomes

Factors associated with smartphone addiction: A comparative study between Japanese and Thai high school students.

BackgroundSmartphone addiction is a growing social problem with adverse health outcomes. There are few comparative studies in Asia that examine factors associated with smartphone addiction. The current study aimed to address this research gap by presenting a comparative analysis of factors associated with smartphone addiction in Japan and Thailand, two countries heterogeneous in both their level of economic development and culture.MethodsParticipant data were collected using two population-based surveys. Participants were high school students in grade 11, aged 16-17 years old, and were selected using quota sampling in Japan in 2014 and random sampling in Thailand in 2016. The outcome of interest was smartphone addiction, measured using a modified version of the Young Diagnostic Questionnaire for Internet Addiction. Multiple logistic regression analysis was performed to determine factors associated with smartphone addiction (gender; nationality; family connectedness; and average time spent on smartphone per day).ResultsThis study included a total of 7694 students, 6585 students from Japan and 1109 students from Thailand. The prevalence of smartphone addiction was 35.9% among Thai students and 12% among Japanese students. Thai students were more likely to have smartphone addiction than Japanese students (AOR 2.76; 95% CI: 2.37-3.30). Being female was associated with increased odds of smartphone addiction in both Japanese (AOR 1.53; 95% CI: 1.32-1.78) and Thai students (AOR 1.34; 95% CI: 1.01-1.78). The parental connectedness variables "my parents noticed when I was unhappy" (AOR 0.77; 95% CI: 0.62-0.96) and "my parents noticed when I did something good" (AOR 0.78, 95% CI: 0.61-0.99) were associated with lower odds of smartphone addiction among Japanese students.ConclusionSmartphone addiction was more prevalent among Thai adolescents than Japanese adolescents, and more prevalent among females than males in both countries. Interventions for reducing smartphone addiction should take into account both context and gender, and should leverage the protective effect of parental connectedness

Prevalence and Correlates of HIV Testing among Young People Enrolled in Non-Formal Education Centers in Urban Chiang Mai, Thailand: A Cross-Sectional Study.

BACKGROUND:HIV testing is the gateway to HIV prevention, treatment, and care. Despite the established vulnerability of young Thai people to HIV infection, studies examining the prevalence and correlates of HIV testing among the general population of Thai youth are still very limited. This study investigates socio-demographic, behavioral, and psychosocial factors associated with HIV testing among young Thai people enrolled in Non-formal Education Centers (NFEC) in urban Chiang Mai, Northern Thailand. METHODS:This was a cross-sectional quantitative study conducted among young unmarried Thai youth--between the ages of 15 and 24--who were enrolled in NFEC in urban Chiang Mai. Multiple logistic regressions were used to identify correlates of "ever tested for HIV" among the sexually active participants. FINDINGS:Of the 295 sexually active participants, 27.3% reported "ever tested for HIV;" 65.4% "did not consistently use condom;" and 61.7% "had at least 2 lifetime partners." We found that "self-efficacy" (AOR, 4.92; CI, 1.22-19.73); "perception that it is easy to find a location nearby to test for HIV" (AOR, 4.67; CI, 1.21-18.06); "having at least 2 lifetime sexual partners" (AOR, 2.05; CI, 1.09-3.85); and "ever been pregnant or made someone pregnant" (AOR, 4.06; CI, 2.69-9.15); were associated with increased odds of having ever been tested. On the other hand, "fear of HIV test results" (AOR, 0.21; CI, 0.08-0.57) was associated with lower odds of ever having been tested for HIV. CONCLUSION:The main finding is that a substantially high proportion of Thai youth is engaged in risky sexual behaviors--yet reports low rates of ever having been tested for HIV. This highlights an urgent need to develop appropriate interventions--based on the identified correlates of HIV testing. There is also an urgent need to enhance HIV testing and to promote safer sexual behaviors among young Thai people--particularly those who are out-of-school

Correction: Socio-behavioral risk factors among older adults living with HIV in Thailand.

[This corrects the article DOI: 10.1371/journal.pone.0188088.]