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Dive into the research topics where Megan S. C. Lim is active.

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Featured researches published by Megan S. C. Lim.


International Journal of Std & Aids | 2008

SMS STI: A Review of the Uses of Mobile Phone Text Messaging in Sexual Health:

Megan S. C. Lim; Jane S. Hocking; Margaret Hellard; Campbell Aitken

Short messaging service (SMS) (a.k.a. text messaging) is a fast, low cost and popular mode of communication among young people, and these advantages can be used in a variety of ways in the field of sexual health. This paper reviews the current published and grey literature and discusses applications of SMS in sexual health and the evidence base for their effectiveness. Examples of uses of SMS in sexual health include: communication between sexual health clinics and patients, partner notification and contact tracing, contraception reminders and sexual health promotion and education. However, although SMS has been applied in many ways to improve sexual health and there is some evidence of its effectiveness, very few of the applications described in this article have been evaluated. As SMS is likely to become more and more commonly used for sexual health purposes, evaluation of its benefits and effectiveness is essential.


Journal of Epidemiology and Community Health | 2012

Impact of text and email messaging on the sexual health of young people: a randomised controlled trial

Megan S. C. Lim; Jane S. Hocking; Campbell Aitken; Christopher K. Fairley; Lynne Jordan; Jennifer Lewis; Margaret Hellard

Objective To carry out a randomised controlled trial on the effect of a new method of health promotion—email and mobile phone text messages (short messaging service (SMS))—on young peoples sexual health. Methods 994 people aged 16–29 were recruited at a music festival to a non-blinded randomised controlled trial. Participants were randomised to either receive sexual health promotion messages (n=507) or the control group (n=487). The 12-month intervention included SMS (catchy sexually transmissible infections prevention slogans) and emails. Participants completed questionnaires at the festival at baseline and online after 3, 6 and 12 months. Outcomes were differences between the control and intervention groups in health-seeking behaviour, condom use with risky partners (new or casual partners or two or more partners within 12 months) and STI knowledge. Results 337 (34%) completed all three follow-up questionnaires and 387 (39%) completed the final questionnaire. At 12 months, STI knowledge was higher in the intervention group for both male (OR=3.19 95% CI 1.52 to 6.69) and female subjects (OR=2.36 95% CI 1.27 to 4.37). Women (but not men) in the intervention group were more likely to have had an STI test (OR=2.51, 95% CI 1.11 to 5.69), or discuss sexual health with a clinician (OR=2.92, 95% CI 1.66 to 5.15) than their control counterparts. There was no significant impact on condom use. Opinions of the messages were favourable. Conclusion This simple intervention improved STI knowledge in both sexes and STI testing in women, but had no impact on condom use. SMS and email are low cost, popular and convenient, and have considerable potential for health promotion. Clinical trial registration number Australian Clinical Trials Registry - ACTRN12605000760673.


Sexually Transmitted Diseases | 2010

Determining the Impact of Text Messaging for Sexual Health Promotion to Young People

Judy Gold; Megan S. C. Lim; Jane S. Hocking; Louise Keogh; Tim Spelman; Margaret Hellard

Background: The use of new technologies, such as mobile phones and internet, has increased dramatically in recent years. Text messages offer a novel method of sexual health promotion to young people who are the greatest users of new technology and are also at high risk of sexually transmitted infections (STIs). Methods: In January 2008, young people aged between 16 and 29 years were recruited from a music festival in Melbourne, Australia. They completed a short survey and were asked to provide their mobile phone numbers. Participants received fortnightly short messaging service (SMS) relating to sexual health for 4 months, and then completed an online follow-up survey. Survey data were weighted to account for those lost to follow-up. McNemars test was used to compare changes in survey responses. Results: A total of 1771 participants were included in analysis as they were sexually active and provided a valid mobile phone number at baseline. In all, 18% (319/1771) withdrew from receiving the SMS during the broadcast period and 40% (587/1452) completed the follow-up survey. The majority reported on the follow-up survey that they found the SMS entertaining (80%), informative (68%), and they showed the SMS to others (73%). Weighted analyses found a significant increase in knowledge (P < 0.01) and STI testing (P < 0.05) over time in both males and females. Conclusion: The findings indicate that SMS appear to be a feasible, popular, and effective method of sexual health promotion to young people with a relatively low withdrawal rate, positive feedback, and an observed improvement in sexual health knowledge and STI testing.


Sexually Transmitted Infections | 2010

Does the frequency of HIV and STI testing among men who have sex with men in primary care adhere with Australian guidelines

Rebecca Guy; Jane L Goller; Tim Spelman; Carol El-Hayek; Judy Gold; Megan S. C. Lim; David Leslie; Ban Kiem Tee; Norman Roth; Jonathan Anderson; Christopher K. Fairley; John M. Kaldor; Margaret Hellard

Objectives Australian guidelines recommend annual testing for HIV and sexually transmitted infections (STIs) for all men who have sex with men (MSM) and 3–6 monthly testing for those at higher risk as defined by behavioural criteria. We assessed HIV/STI re-testing rates among MSM attending primary care clinics. Methods We conducted a retrospective follow-up of HIV negative MSM tested for HIV or STIs (chlamydia or syphilis) at four primary care clinics in the 9-month period: April to December 2006. Re-testing rates for these infections were calculated over 18 months. Logistic regression was undertaken to identify predictors of guideline adherence. Results Of the MSM requiring annual HIV testing according to the guidelines, the re-testing rates at 1 y were 35% (762/2163). Among the higher risk MSM, 6-monthly HIV re-testing rates were 15% (283/1862). Within the subgroup who reported 11 or more male sexual partners within the past 6 months, HIV re-testing rates within 6 months were 19%. Independent predictors of HIV re-testing within 6 months in higher-risk MSM were reporting 11 or more male sexual partners in the last 6 months (AOR 3.1, 95% CI 1.8 to 4.8); being born overseas (AOR 2.0, 95% CI 1.2 to 3.4); and previous HIV testing more than 12 months earlier (AOR 3.3, 95% CI 1.9 to 5.5). Conclusion There is poor adherence to national guidelines that recommend regular re-testing of MSM for STIs, particularly among those at higher risk who require more frequent testing. Clinical strategies are urgently needed to encourage more frequent HIV/STI testing among MSM, especially in the higher risk subgroup.


Jmir mhealth and uhealth | 2013

Let's get Wasted! and Other Apps: Characteristics, Acceptability, and Use of Alcohol-Related Smartphone Applications

Emma R. Weaver; Danielle Horyniak; Rebecca Jenkinson; Paul Dietze; Megan S. C. Lim

Background Smartphone applications (“apps”) offer a number of possibilities for health promotion activities. However, young people may also be exposed to apps with incorrect or poor quality information, since, like the Internet, apps are mostly unregulated. Little is known about the quality of alcohol-related apps or what influence they may have on young people’s behavior. Objective To critically review popular alcohol-related smartphone apps and to explore young people’s opinions of these apps, their acceptability, and use for alcohol-related health promotion. Methods First, a content analysis of 500 smartphone apps available via Apple iTunes and Android Google Play stores was conducted. Second, all available blood alcohol concentration (BAC) apps were tested against four individual case profiles of known BAC from a previous study. Third, two focus group discussions explored how young people use alcohol-related apps, particularly BAC apps. Results 384 apps were included; 50% (192) were entertainment apps, 39% (148) were BAC apps, and 11% (44) were health promotion and/or stop drinking–related apps. When testing the BAC apps, there was wide variation in results, with apps tending to overestimate BAC scores compared with recorded scores. Participants were skeptical of the accuracy of BAC apps, and there was an overall concern that these apps would be used as a form of entertainment, further encouraging young people to drink, rather than reduce their drinking and risk taking. Conclusions The majority of popular alcohol-related apps encouraged alcohol consumption. Apps estimating blood alcohol concentration were widely available but were highly unreliable. Health departments and prominent health organizations need to endorse alcohol smartphone apps that are accurate and evidence-based to give specific apps credibility in the ever-expanding market of unregulated apps.


Neurology | 2008

Neurologic disorders are prevalent in HIV-positive outpatients in the Asia-Pacific region

Edwina Wright; Bruce J. Brew; Arkhom Arayawichanont; Kevin R. Robertson; K Samintharapanya; Subsai Kongsaengdao; Megan S. C. Lim; Saphonn Vonthanak; Luxshimi Lal; C Sarim; Sarah Huffam; Patrick Ck Li; Darma Imran; Jenny Lewis; W H Lun; Adeeba Kamarulzaman; Goa Tau; S T Ali; K Kishore; Margaret P. Bain; Robyn Dwyer; G McCormack; Margaret Hellard; Catherine L. Cherry; Julie H. McArthur; Steven L. Wesselingh

Background: A total of 8.3 million HIV-positive people live in the Asia-Pacific region. The burden of HIV-associated neurocognitive impairment and symptomatic sensory neuropathy in this region is unknown. Methods: Between July 2005 and March 2006, we undertook a cross-sectional study at 10 sentinel sites within eight Asia-Pacific countries to determine the prevalence of moderate to severe HIV-related neurocognitive impairment and symptomatic sensory neuropathy. We clinically assessed and administered sensitive neuropsychological and peripheral neuropathy screening tools to 658 patients infected with HIV. Univariate and logistic regression analyses were applied to the data. Results: The results showed that 76 patients (11.7%) (95% CI 9.3–14.2) were significantly neurocognitively impaired, 235 patients (36.4%) (95% CI 32.7–40.2) were depressed, and 126 patients (19.7%) (95% CI 16.6–22.8) had either definite or probable symptomatic sensory neuropathy; 63% of this last group had exposure to stavudine, didanosine, or zalcitabine. Several potential confounders including depression (OR 1.49, 95% CI 0.88–2.51, p = 0.11) and prior CNS AIDS illness (OR 1.28, 95% CI 0.50–2.89, p = 0.54) were not significantly associated with neurocognitive impairment. Conclusions: A total of 12% of patients had moderate to severe HIV-related neurocognitive impairment, 20% of patients had symptomatic sensory neuropathy, and 36% of patients had evidence of depression. This study provides a broad regional estimate of the burden of HIV-related neurologic disease and depression in the Asia-Pacific region.


Sexual Health | 2007

Sexual-risk behaviour, self-perceived risk and knowledge of sexually transmissible infections among young Australians attending a music festival

Megan S. C. Lim; Margaret Hellard; Campbell Aitken; Jane S. Hocking

BACKGROUND Prevalences of sexually transmissible infections (STI), unsafe sex and abortions are increasing in Australia and people aged 16 to 29 are particularly at risk. We conducted a survey of behaviour, knowledge and perceptions of STI risk among young people attending a longstanding annual music festival called the Big Day Out. METHODS A structured questionnaire was administered to a cross-sectional sample of people aged 16 to 29 years attending a music festival (Big Day Out). RESULTS Completed questionnaires were collected from 939 participants (507 females, 432 males) whose median age was 20 years. Of the participants, 751 (80%) had ever had vaginal or anal sex. In the previous year, 48% had multiple partners and in the past 3 months 66% had a new partner. Of these, 224 (39%; 30% of those who had ever had sex) did not use condoms all or most of the time and were classified as being at risk of STI; however, only 24% of those so classified perceived that they were at risk of an STI. In total, 43% of all sexually experienced participants had not used a condom because they reported being drunk or high at the time. STI knowledge was poor overall and male participants, those living in non-metropolitan regions, those under the age of 20 and those with less schooling scored relatively poorly. CONCLUSIONS Our data suggest that young men and women who attend the Big Day Out are sexually active young adults with limited knowledge of STI and blood-borne viruses who regularly engage in behaviours that put them at risk of infection.


BMC Medical Research Methodology | 2012

Measuring the accuracy of self-reported height and weight in a community-based sample of young people

Anna L. Bowring; Anna Peeters; Rosanne Freak-Poli; Megan S. C. Lim; Maelenn Gouillou; Margaret Hellard

BackgroundSelf-reported anthropometric data are commonly used to estimate prevalence of obesity in population and community-based studies. We aim to: 1) Determine whether survey participants are able and willing to self-report height and weight; 2) Assess the accuracy of self-reported compared to measured anthropometric data in a community-based sample of young people.MethodsParticipants (16–29 years) of a behaviour survey, recruited at a Melbourne music festival (January 2011), were asked to self-report height and weight; researchers independently weighed and measured a sub-sample. Body Mass Index was calculated and overweight/obesity classified as ≥25kg/m2. Differences between measured and self-reported values were assessed using paired t-test/Wilcoxon signed ranks test. Accurate report of height and weight were defined as <2cm and <2kg difference between self-report and measured values, respectively. Agreement between classification of overweight/obesity by self-report and measured values was assessed using McNemar’s test.ResultsOf 1405 survey participants, 82% of males and 72% of females self-reported their height and weight. Among 67 participants who were also independently measured, self-reported height and weight were significantly less than measured height (p=0.01) and weight (p<0.01) among females, but no differences were detected among males. Overall, 52% accurately self-reported height, 30% under-reported, and 18% over-reported; 34% accurately self-reported weight, 52% under-reported and 13% over-reported. More females (70%) than males (35%) under-reported weight (p=0.01). Prevalence of overweight/obesity was 33% based on self-report data and 39% based on measured data (p=0.16).ConclusionsSelf-reported measurements may underestimate weight but accurately identified overweight/obesity in the majority of this sample of young people.


Journal of Epidemiology and Community Health | 2010

Randomised controlled trial of paper, online and SMS diaries for collecting sexual behaviour information from young people

Megan S. C. Lim; Rachel Sacks-Davis; Campbell Aitken; Jane S. Hocking; Margaret Hellard

Background Diaries are used in sexual behaviour research to reduce recall bias. Diary collection via mobile phone text messaging (SMS) has not been trialled previously in sexual behaviour research. This randomised controlled trial compared SMS, paper and online diaries on response rate, timeliness, completeness of data and acceptability. The correlation between behaviour reported in all three types of diaries and data collected in a retrospective questionnaire was also determined. Methods Participants were recruited by telephone and randomised into one of three groups. They completed weekly sexual behaviour diaries for 3 months by SMS, online or paper (by post). An online survey was conducted at the end of 3 months to compare retrospective reports to the diaries and assess opinions on the diary collection method. Results 72 participants were enrolled in the study, 24 in each group. Online diaries were more likely to be submitted late than SMS diaries (p<0.001). 3.9% of SMS diaries, 3.1% of paper diaries and 0.5% of online diaries were incomplete (p=0.001). Online data collection was the preferred mode for 51%. 65 participants completed the end point retrospective questionnaire. The correlation between the diary and questionnaire on sexual risk classification was substantial (κ=0.74) regardless of diary mode. Conclusions SMS is a convenient and timely method of collecting brief behavioural data, but online data collection was preferable to most participants and more likely to be complete. Data collected in retrospective sexual behaviour questionnaires were found to agree substantially with data collected through weekly self-reported diaries.


Drug and Alcohol Review | 2009

Surveillance of drug use among young people attending a music festival in Australia, 2005–2008

Megan S. C. Lim; Margaret Hellard; Jane S. Hocking; Tim Spelman; Campbell Aitken

INTRODUCTION AND AIMS In order to monitor trends in illicit drug use among youth, surveillance of drug use behaviours among a variety of populations in different settings is required. We monitored drug use among music festival attendees. DESIGN AND METHODS Cross-sectional studies of young peoples reported drug use were performed at a music festival in Melbourne from 2005 to 2008. Self-administered questionnaires collected information on drug use, demographics and other risk behaviour. RESULTS From 2005 to 2008, over 5000 questionnaires were completed by people aged 16-29; 2273 men and 3011 women. Overall, use of any illicit drug in the past month was reported by 44%. After adjusting for demographic and behavioural characteristics, the prevalence of recent illicit drug use decreased significantly from 46% in 2005 to 43% in 2008 (OR 0.92, 95% CI 0.87-0.97). After adjusting for age and sex the downwards trend was repeated for amphetamines and cannabis, but a significant increase in prevalence was observed in hallucinogen, ecstasy and inhalant use. Drug use was more common among men, older participants and those engaging in high-risk sexual behaviour. DISCUSSION AND CONCLUSIONS Illicit drug use was much more common in this sample than in the National Drug Strategy Household survey, but the direction of trends in drug use were similar; drug use prevalences were much lower than in the Ecstasy and Related Drugs Reporting System, the Illicit Drug Reporting System or National Needle and Syringe Program Survey. Music festival attendees are a potentially useful group for monitoring trends in illicit drug use.

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