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Dive into the research topics where Yasmin Jayasinghe is active.

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Featured researches published by Yasmin Jayasinghe.


Journal of Medical Internet Research | 2012

Web-Based Recruiting for Health Research Using a Social Networking Site: An Exploratory Study

Yeshe Fenner; Suzanne M. Garland; Elya E. Moore; Yasmin Jayasinghe; Ashley Fletcher; Sepehr N. Tabrizi; Bharathy Gunasekaran; John D. Wark

Background Recruitment of young people for health research by traditional methods has become more expensive and challenging over recent decades. The Internet presents an opportunity for innovative recruitment modalities. Objective To assess the feasibility of recruiting young females using targeted advertising on the social networking site Facebook. Methods We placed an advertisement on Facebook from May to September 2010, inviting 16- to 25-year-old females from Victoria, Australia, to participate in a health study. Those who clicked on the advertisement were redirected to the study website and were able to express interest by submitting their contact details online. They were contacted by a researcher who assessed eligibility and invited them to complete a health-related survey, which they could do confidentially and securely either at the study site or remotely online. Results A total of 551 females responded to the advertisement, of whom 426 agreed to participate, with 278 completing the survey (139 at the study site and 139 remotely). Respondents’ age distribution was representative of the target population, while 18- to 25-year-olds were more likely to be enrolled in the study and complete the survey than 16- to 17-year-olds (prevalence ratio = 1.37, 95% confidence interval 1.05–1.78, P = .02). The broad geographic distribution (major city, inner regional, and outer regional/remote) and socioeconomic profile of participants matched the target population. Predictors of participation were older age, higher education level, and higher body mass index. Average cost in advertising fees per compliant participant was US


Australian & New Zealand Journal of Obstetrics & Gynaecology | 2005

Bleeding disorders in teenagers presenting with menorrhagia

Yasmin Jayasinghe; Patricia Moore; Susan Donath; Janine Campbell; Paul Monagle; Sonia Grover

20, making this highly cost effective. Conclusions Results demonstrate the potential of using modern information and communication technologies to engage young women in health research and penetrate into nonurban communities. The success of this method has implications for future medical and population research in this and other demographics.


Archives of Disease in Childhood | 2006

Genital warts in children: what do they mean?

Yasmin Jayasinghe; Suzanne M. Garland

Objective:  To assess the prevalence of bleeding disorders and establish the clinical variables that are predictive of a bleeding disorder in adolescent women.


British Journal of Obstetrics and Gynaecology | 2008

Current concepts in bone and reproductive health in adolescents with anorexia nervosa

Yasmin Jayasinghe; Sonia Grover; Margaret Zacharin

Human papillomaviruses (HPVs) are a diverse family of viruses, of which 30–40 genotypes specifically infect the genital tract. Genital HPVs are largely transmitted sexually, with most infections being asymptomatic and transient. In contrast, persistent infection with oncogenic genotypes in a minority is a strong risk factor, for subsequent development of high grade dysplasia, the precursor lesion to cervical neoplasia, which generally occurs after a long latency period. It is unknown whether there is a disease correlate in children chronically infected with oncogenic HPVs. Low risk HPV genotypes 6 and 11 are the primary cause of condylomata acuminata, although in children non-genital genotypes are also found in a proportion, with the mode of transmission being either perinatal, horizontal, or sexual. The finding of asymptomatic HPV DNA in children, and correlation with live virus, infectivity, or disease is unclear. Long term follow up for children with anogenital warts is recommended, although there are no longitudinal studies available to clarify whether they are at risk of developing carcinoma in young adulthood.


Vaccine | 2015

Assessing genital human papillomavirus genoprevalence in young Australian women following the introduction of a national vaccination program

Sarah L. Osborne; Sepehr N. Tabrizi; Julia M.L. Brotherton; Alyssa M. Cornall; John D. Wark; C. David Wrede; Yasmin Jayasinghe; Dorota M. Gertig; Marian Pitts; Suzanne M. Garland

Anorexia nervosa (AN) initiates an adaptive response at the level of the hypothalamus, which results in a complex interplay involving most elements of the neuroendocrine axis. Consequences of onset of disease in adolescence include amenorrhoea, pubertal arrest with potential loss of target height, and osteoporosis with reduced capacity for future attainment of peak bone mass. With recovery, delay in restoration of menses is common. Hormonal therapies for restoration of bone mineral density (BMD) in adolescents have shown limited efficacy. This review will discuss the reproductive endocrine effects of AN in adolescence, and discuss new investigative tools for monitoring restoration of reproductive function and BMD in this population.


Current Opinion in Obstetrics & Gynecology | 2009

Fibroadenomas in adolescence.

Yasmin Jayasinghe; Patricia S. Simmons

OBJECTIVES Following the implementation of Australias National HPV Vaccination Program in April 2007, this study evaluated the prevalence of vaccine-targeted human papillomavirus (HPV) genotypes (HPV 6, 11, 16, 18) amongst vaccine-eligible young women. METHODS Between September 2011 and August 2013, women from Victoria, Australia aged 18-25 were recruited through targeted advertising on the social networking website Facebook. Participants completed an online questionnaire, and sexually active women were asked to provide a self-collected vaginal swab for HPV deoxyribonucleic acid (DNA) detection and genotyping. Samples positive for HPV were genotyped using the Linear Array HPV genotyping test (Roche Diagnostics). Self-reported HPV vaccination details were verified with the National HPV Vaccination Program Register (NHVPR). RESULTS Of 431 vaginal swabs, 24.8% were positive for HPV DNA. Vaccine-targeted HPV genotypes were detected in only seven (1.6%) samples; all HPV 16 (of the six HPV 16 positive vaccinated women, all had received the vaccine after sexual debut). There were no cases of HPV 6, 11 or 18 identified. HPV types 51, 59, 73, 84, and 89 were the most prevalent genotypes. Vaccination rates were high, with 77.3% of participants having received all three doses of the vaccine, and there was an 89.8% concordance between self-reported and registry-reported HPV vaccination status. Strong associations were observed between vaccination status, age, language spoken at home and country of birth, as well as between HPV detection and the number of male sexual partners. CONCLUSION Preliminary data from this study demonstrate a very low prevalence of vaccine-related HPV genotypes amongst vaccine-eligible women from Victoria, Australia. We were able to use Facebook to effectively reach and recruit young women to participate in the assessment of the impact of Australias HPV vaccination program.


Child Abuse & Neglect | 2010

The prevalence of childhood sexual abuse and adolescent unwanted sexual contact among boys and girls living in Victoria, Australia

Elya E. Moore; Helena Romaniuk; Craig A. Olsson; Yasmin Jayasinghe; John B. Carlin; George C Patton

Purpose of review Fibroadenomas are the most common breast masses in adolescent women, therefore it is important that health providers understand their assessment and management. This review discusses an approach to investigation and management of fibroadenomas in adolescents. Recent findings Fibroadenomas are benign tumors which commonly present in late adolescence. They are classified according to their histology and size. Simple fibroadenomas are the most common type and usually present as smooth mobile masses up to 3 cm in diameter. Giant fibroadenomas are more uncommon but typically present in adolescence. Fibroadenomas associated with other soft-tissue masses should raise the possibility of an inherited syndrome. Assessment of breast masses in this age group generally involves clinical assessment through history and physical examination and, when imaging is needed, ultrasonography. As the incidence of primary breast malignancy is very low in this age group, core biopsy is not routinely recommended. Large or rapidly growing tumors, or those associated with suspicious features, warrant surgical excision. New minimally invasive excision techniques are being introduced which are associated with high initial success rates. Summary Whereas the vast majority of fibroadenomas in teenagers may be monitored with surveillance alone, new minimally invasive techniques may play an important role in the management of selected patients.


Clinical Endocrinology | 2013

Fertility in Turner syndrome

Jacqueline K. Hewitt; Yasmin Jayasinghe; David J. Amor; Lynn Gillam; Garry L. Warne; Sonia Grover; Margaret Zacharin

OBJECTIVES Childhood sexual abuse (CSA) is associated with both short- and long-term adverse mental and physical health consequences, yet there remains considerable controversy about the prevalence of CSA in the general population. There is also little prospective data on unwanted sexual contact (USC) collected during adolescence. METHODS Data from a 10-year cohort study of a nationally representative sample of students aged 14-15 years in Victoria, Australia from 1992 to 2003 was used. CSA prior to age 16 was assessed retrospectively at age 24 years using a 6-item validated questionnaire. USC was assessed prospectively via questionnaire at 3 time points during adolescence. Multiple imputation was used to handle missing data. RESULTS One thousand nine hundred forty-three of 2032 eligible adolescents participated in at least one wave of the study. One thousand seven hundred forty-five (812 males and 933 females) provided sufficient information to allow for multiple imputation and inclusion in the main analysis. The prevalence of any CSA was substantially higher among girls [17%, 95% confidence interval (CI): 14-20%] than boys (7%, 95% CI: 3-10%), as was the prevalence of USC reported during adolescence (14%, 95% CI 11-16%, versus 6%, 95% CI: 4-8% respectively). CONCLUSIONS These findings highlight the high prevalence of childhood sexual abuse and unwanted sexual contact among girls as well as boys. PRACTICE IMPLICATIONS In order to accurately inform early recognition, intervention and education programs for individuals with a history of CSA the frequency of sexual abuse must first be precisely quantified. Developing more standardized approaches will be important in order to improve our understanding of the extent of this problem.


Obstetrics & Gynecology | 2011

Breast carcinoma in young women

Patricia S. Simmons; Yasmin Jayasinghe; Lester E. Wold; L. Joseph Melton

There is increasing interest in fertility and use of assisted reproductive technologies for women with Turner syndrome (TS). Current parenting options include adoption, surrogacy, and spontaneous and assisted reproduction. For women with TS, specific risks of pregnancy include higher than usual rates of spontaneous abortion, foetal anomaly, maternal morbidity and mortality. Heterologous fertility assistance using oocytes from related or unrelated donors is an established technique for women with TS. Homologous fertility preservation includes cryopreservation of the patients own gametes prior to the progressive ovarian atresia known to occur: preserving either mature oocytes or ovarian tissue containing primordial follicles. Mature oocyte cryopreservation requires ovarian stimulation and can be performed only in postpubertal individuals, when few women with TS have viable oocytes. Ovarian tissue cryopreservation, however, can be performed in younger girls prior to ovarian atresia – over 30 pregnancies have resulted using this technique, however, none in women with TS. We recommend consideration of homologous fertility preservation techniques in children only within specialized centres, with informed consent using protocols approved by a research or clinical ethics board. It is essential that further research is performed to improve maternal and foetal outcomes for women with TS.


Journal of Global Oncology | 2016

Creating a Global Community of Practice for Oncofertility

Lauren M. Ataman; Jhenifer K. Rodrigues; Ricardo M. Marinho; Joäo Pedro Junqueira Caetano; Maurício Barbour Chehin; E.L.A. Motta; Paulo Serafini; Nao Suzuki; Tatsuro Furui; Seido Takae; Yodo Sugishita; Ken-ichiro Morishige; Teresa Almeida-Santos; Cláudia Melo; Karen Buzaglo; Kate Irwin; W. Hamish B. Wallace; Richard A. Anderson; Roderick Mitchell; Evelyn E. Telfer; Satish Kumar Adiga; Antoinette Anazodo; Catharyn Stern; Elizabeth A. Sullivan; Yasmin Jayasinghe; Lisa Orme; Richard J. Cohn; Robert I. McLachlan; Rebecca Deans; Franca Agresta

OBJECTIVE: To estimate the incidence of breast carcinoma and survival in patients younger than 25 years old, and to describe presenting clinical signs and symptoms of breast cancer in this age group. METHODS: A population-based descriptive study and case review in Olmsted County, Minnesota, was conducted using the resources of the Rochester Epidemiology Project. Participants were Olmsted County girls and women younger than 25 years old with histopathologically confirmed breast carcinoma diagnosed between 1935 and 2005. Nonresidents who presented to a medical facility within Olmsted County during this time period were included in some portions of the analysis. Main outcome measures were age-adjusted incidence, 5-year survival, and clinical presentation of breast carcinoma in girls and women younger than 25 years of age. RESULTS: With four breast carcinomas observed in Olmsted County residents over 1,201,539 person-years, the annual age-adjusted incidence of breast cancer in this population was 3.2 per million (95% confidence interval, 0.1–6.2). All four cancers occurred in the 20- to 24-year age group (age-specific incidence, 16.2 per million). Eight additional cases of breast carcinoma were identified in nonresidents. Delay in diagnosis was common. All had at least one feature worrisome for an aggressive neoplasm identified in their clinical history, on physical examination or by imaging. CONCLUSION: Breast carcinoma in young women is very rare, associated with delayed diagnosis, and usually associated with concerning features requiring biopsy. LEVEL OF EVIDENCE: III

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John D. Wark

Royal Melbourne Hospital

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Sonia Grover

University of Melbourne

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Lisa Orme

Royal Children's Hospital

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Paddy Moore

Royal Children's Hospital

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