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Featured researches published by Mary Stewart.


The Journal of Infectious Diseases | 2018

Very Low Prevalence of Vaccine Human Papillomavirus Types Among 18- to 35-Year Old Australian Women 9 Years Following Implementation of Vaccination

Dorothy A Machalek; Suzanne M. Garland; Julia M.L. Brotherton; Deborah Bateson; Kathleen McNamee; Mary Stewart; S. Rachel Skinner; Bette Liu; Alyssa M. Cornall; John M. Kaldor; Sepehr N. Tabrizi

Introduction A quadrivalent human papillomavirus vaccination program targeting females aged 12-13 years commenced in Australia in 2007, with catch-up vaccination of 14-26 year olds through 2009. We evaluated the programs impact on HPV prevalence among women aged 18-35 in 2015. Methods HPV prevalence among women aged 18-24 and 25-35 was compared with prevalence in these age groups in 2005-2007. For women aged 18-24, we also compared prevalence with that in a postvaccine study conducted in 2010-2012. Results For the 2015 sample, Vaccination Register-confirmed 3-dose coverage was 53.3% (65.0% and 40.3% aged 18-24 and 25-35, respectively). Prevalence of vaccine HPV types decreased from 22.7% (2005-2007) and 7.3% (2010-2012), to 1.5% (2015) (P trend < .001) among women aged 18-24, and from 11.8% (2005-2007) to 1.1% (2015) (P = .001) among those aged 25-35. Conclusions This study, reporting the longest surveillance follow-up to date, shows prevalence of vaccine-targeted HPV types has continued to decline among young women. A substantial fall also occurred in women aged 25-35, despite lower coverage. Strong herd protection and effectiveness of less than 3 vaccine doses likely contributed to these reductions.


Australian & New Zealand Journal of Obstetrics & Gynaecology | 2016

User characteristics, experiences and continuation rates of copper intrauterine device use in a cohort of Australian women

Deborah Bateson; Caroline Harvey; Lieu Trinh; Mary Stewart; Kirsten Black

Copper intrauterine device (Cu‐IUD) use in Australia is low despite being a highly effective, cost effective non‐hormonal contraceptive with reported 12‐month continuation rates of 85% compared to 59% for oral contraception.


Journal of Family Planning and Reproductive Health Care | 2017

Australian women's attitudes towards and understandings of the subdermal contraceptive implant: a qualitative study of never-users

Kumiyo Inoue; Marguerite Kelly; Alexandra Barratt; Deborah Bateson; Alison Rutherford; Kirsten Black; Mary Stewart; Juliet Richters

Objective Few studies have explored Australian womens understandings of contraception. This study examined the attitudes towards, and understandings of, the subdermal contraceptive implant expressed by women living in New South Wales (NSW), Australia. Study design As part of a larger qualitative study using in-depth, open-ended interviews in 2012–2013 with women aged 16–49 years who had ever used contraception (n=94), 65 interviews from women who discussed or mentioned the subdermal implant, but had not previously used the device, were examined and analysed using thematic analysis. Results The emergent themes were: satisfaction with current method; weak personal opinions and ambivalence; uncertainty due to specific concerns; and strong negative reactions – fear and dislike. Although there were a few positive perceptions expressed by women who had never used the subdermal implant, for the majority of women the perception was predominantly negative. Discussion and conclusion Women tended to form negative impressions from the stories of other women about the subdermal implant. Interventions to enhance evidence-informed awareness of the relative advantages and disadvantages of the implant – for example, improved access to supportive contraceptive counselling – need investigation in the Australian context. Avenues to improve womens perceived control over the device could also be usefully investigated.


BMC Family Practice | 2017

What do young Australian women want (when talking to doctors about contraception)

Denisa L. Goldhammer; Catriona Fraser; Britta Wigginton; Melissa L. Harris; Deborah Bateson; Deborah Loxton; Mary Stewart; Jacqueline Coombe; Jayne Lucke

BackgroundAccess to most contraceptives in Australia requires a prescription from a doctor, and it has been shown that doctors can influence women’s decision-making with respect to contraception. However, little research has documented how women experience their interactions with doctors within the context of a contraceptive consultation. Understanding such experiences may contribute to our knowledge of factors that may influence women’s contraceptive decisions more broadly.MethodsWe report on findings from the Contraceptive Use, Pregnancy Intentions and Decisions (CUPID) survey of young Australian women, a large-scale longitudinal study of 3,795 women aged 18–23 years. We performed a computer-assisted search for occurrences of words that indicated an interaction within the 1,038 responses to an open-ended question about contraception and pregnancy. We then applied a combination of conventional and summative content analysis techniques to the 158 comments where women mentioned an interaction about contraception with a doctor.ResultsOur analysis showed that women desire consistent and accurate contraception information from doctors, in addition to information about options other than the oral contraceptive pill. Some young women reported frustrations about the choice limitations imposed by doctors, perceived by these women to be due to their young age. Several women expressed disappointment that their doctor did not fully discuss the potential side-effects of contraceptives with them, and that doctors made assumptions about the woman’s reasons for seeking contraception. Some women described discomfort in having contraception-related discussions, and some perceived their doctor to be unsupportive or judgmental.ConclusionsBoth the content and the process of a contraceptive consultation are important to young Australian women, and may be relevant contributors to their choice and ongoing use of a contraceptive method. These findings provide useful insights into aspects of the patient-provider interaction that will enhance the efficacy of the contraceptive consultation. It is recommended that doctors adopt patient-centred, shared decision-making strategies to support women in making choices about contraception that suit their individual circumstances. We also acknowledge the need to involve other health care providers, other than doctors, in educating, informing, and assisting women to make the best contraceptive choice for themselves.


Vaccine | 2018

Decline in prevalence of human papillomavirus infection following vaccination among Australian Indigenous women, a population at higher risk of cervical cancer: The VIP-I study

Skye McGregor; Dina Saulo; Julia M.L. Brotherton; Bette Liu; Samuel Phillips; S. Rachel Skinner; Michele Luey; Lisa Oliver; Mary Stewart; Sepehr N. Tabrizi; Suzanne M. Garland; John M. Kaldor

BACKGROUND Cervical cancer occurrence and mortality are strongly correlated with socioeconomic disadvantage, largely due to unequal access to screening and treatment. Universal human papillomavirus (HPV) vaccination provides the opportunity to greatly reduce this global health disparity. Australian Indigenous women have substantially higher rates of cervical cancer than non-Indigenous women, primarily due to under-screening. We investigated HPV infection rates in Indigenous women 7 years after implementation of the national HPV vaccination program. METHODS We used a repeat cross-sectional design, with the baseline being provided by an HPV prevalence survey among Indigenous women attending clinics for cervical cytology screening, prior to the start of the vaccination program in 2007. We returned to clinics in four locations during 2014-15, and invited women aged 18-26 years attending for screening to provide a cervical specimen for HPV testing, as well as to complete a short questionnaire and consent to allow access of their records in the National HPV Vaccination Program Register. We used well-established laboratory methods to test specimens for specific HPV genotypes. RESULTS A total of 142 women were recruited at participating sites and compared to 155 who had been recruited at the same locations in the 2007 pre-vaccine survey. The two groups were identical in regard to age, with the more recent group having a higher proportion of hormonal contraception users, and a lower proportion of smokers. The proportion found to have any HPV type fell from 58 to 36% with the decline being entirely due to reductions in vaccine types, which fell by 94% from 24 to 1.4%. CONCLUSION Australias national HPV vaccination program appears to be successfully protecting a very high proportion of Indigenous women against vaccine targeted HPV types, who have in the past been at elevated risk of cervical cancer.


The European Journal of Contraception & Reproductive Health Care | 2018

Is there a need for better sexual education of young men? Sexual behaviour and reproductive health in Swiss university students: a questionnaire-based pilot study

Gabriele S. Merki-Feld; Stephanie Felder; Conrad Roelli; Bruno Imthurn; Mary Stewart; Deborah Bateson

Abstract Objectives: There is evidence that men’s perception of contraceptive methods and of their effectiveness and health risks have a major impact on couples contraceptive choices. Engaging men in decision making improves reproductive health outcomes. If they are better informed, men can potentially contribute to more effective use of contraception, thus reducing the rate of sexually transmitted infections and abortion. In Central European countries, few data are available on male contraceptive knowledge and behaviour. Methods: To collect more data we conducted an anonymous survey among young men studying at Zürich University in Switzerland. A questionnaire was distributed to 1500 male students which included a broad range of items addressing sexual behaviour, condom use and knowledge, and attitudes regarding contraceptive methods. Results: Three hundred and sixty-one questionnaires were eligible for evaluation. Condoms and the combined oral contraceptive pill were the most frequently used methods. However, at last intercourse 15.6% of respondents had not used any method of contraception. Many respondents (37%) had had a one-night stand without protection. Contraceptive methods most regarded as unhealthy for women were the combined oral contraceptive pill, progestin-only methods, intrauterine devices (IUDs) and emergency contraception. Characteristics considered by young men to be important in determining contraceptive method choice were: efficacy, partner satisfaction and no impact on fertility and libido. Conclusions: Awareness among male Swiss students about contraceptive methods is high, but in-depth knowledge is limited. Myths were expressed about the combined oral contraceptive pill, progestin-only methods, IUDs and the emergency contraceptive pill. High-risk behaviour occurs frequently. The internet was reported to be the most important source of information about contraception.


Neurourology and Urodynamics | 2018

Prevalence and associated factors of urinary leakage among women participating in the 45 and Up Study

Kristine Concepcion; Yan Cheng; Kevin McGeechan; Sarah Robertson; Mary Stewart; Deborah Bateson; Jane Estoesta; Pauline Chiarelli

The study was undertaken to investigate the prevalence of urinary leakage and its associated factors among a sample of females aged 45 years and over in New South Wales.


Sexual Health | 2017

Age differences in attitudes toward safer sex practices in heterosexual men using an Australian Internet dating service

Yan Cheng; Kevin McGeechan; Deborah Bateson; Todd Ritter; Edith Weisberg; Mary Stewart

Background This cross-sectional study investigated sexually transmissible infection (STI) knowledge, safer sex attitudes and behaviours of sexually active, heterosexual men using an Internet dating service, and explored factors associated with protective attitudes. METHODS An anonymous online survey was sent to men who had logged onto an Internet dating service within the previous year. Factors associated with discussing STIs before sex and condom use intention with a new partner were analysed. RESULTS In total, 2339 responses were analysed. Men had lower STI knowledge scores, lower use of condoms and greater beliefs that condoms reduced interest in sex as age increased. Younger men (aged 18-29 years) were more likely to report intentions of only having sex with a new partner if a condom was used compared with older men aged over 60 years. Predictors of having a discussion about STIs with a new partner were older age, better knowledge of STIs, greater distress at a potential diagnosis of an STI and stronger future condom use intention. Intention to only have sex with a new female partner if a condom was used was associated with higher STI knowledge, discussing STIs with a new partner and distress at a diagnosis of an STI. Men with a higher number of sexual partners in the last year were less likely to have an STI discussion with new partners or intend to use a condom with a new partner. CONCLUSIONS Older Internet-dating, heterosexual men are vulnerable to STIs. Health promotion interventions to increase STI awareness, condom use and STI testing in older men are warranted.


Australian Prescriber | 2015

Choosing a combined oral contraceptive pill.

Mary Stewart; Kirsten Black


Journal of Family Planning and Reproductive Health Care | 2017

Doctors' experience of the contraceptive consultation: a qualitative study in Australia.

Marguerite Kelly; Kumiyo Inoue; Kirsten Black; Alexandra Barratt; Deborah Bateson; Alison Rutherford; Mary Stewart; Juliet Richters

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Alison Rutherford

University of New South Wales

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Juliet Richters

University of New South Wales

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Kumiyo Inoue

University of New South Wales

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Marguerite Kelly

University of New South Wales

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Bette Liu

University of New South Wales

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