Petal Petersen Williams

Dr. Petal Petersen Williams

orcid

Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2014 in Advances in Preventive Medicine
Verified
Journal Article
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PWPetal Petersen Williams
Petal Petersen Williams
EJEsmé Jordaan
Esmé Jordaan
CMCatherine Mathews
Catherine Mathews
CLCarl Lombard
Carl Lombard
CPCharles D. H. Parry
Charles D. H. Parry
Little is known about the nature and extent of alcohol and other drug (AOD) use among pregnant women in Cape Town, South Africa, despite the very high levels of AOD use in this part of the country. A cross-sectional survey was conducted among pregnant women attending 11 Midwife Obstetric Units (MOUs) in greater Cape Town. A two-stage cluster survey design was used. In total, 5231 pregnant women were screened to assess self-reported prevalence estimates. Of these, 684 (13.1%) were intentionally subsampled and completed an interviewer-administered questionnaire and provided a urine sample for biological screening. Urinalyses showed that 8.8% (95% CI: 6.7–10.9) of the subsample tested positive for at least one illicit drug. This is higher than the self-reported prevalence (3.6%). In addition, 19.6% (95% CI: 16.3–22.8) of the sub-sample tested positive for alcohol which is lower than the self-reported prevalence (36.9%). There are high levels of substance use among pregnant women attending public sector antenatal clinics. There is a need for routine screening for AOD use and appropriate responses depending on the women’s level of risk.

28 July 2015 in Journal of Midwifery & Women's Health
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Journal Article
Closed access
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PWPetal Petersen Williams
Petal Petersen Williams
ZPZaino Petersen
Zaino Petersen
KSKatherine Sorsdahl
Katherine Sorsdahl
CMCatherine Mathews
Catherine Mathews
KEKatherine Everett‐Murphy
Katherine Everett‐Murphy
CPCharles D.H. Parry
Charles D.H. Parry

PWPetal Petersen Williams
Petal Petersen Williams
CBCarrie Brooke-Sumner
Carrie Brooke-Sumner
JJJohn Joska
John Joska
JKJames Kruger
James Kruger
LVLieve Vanleeuw
Lieve Vanleeuw
Bronwyn MyersBronwyn Myers
Bronwyn Myers
Young women in South Africa remain most at risk for HIV infection. Several factors contribute to the high incidence rate in this population, including hazardous drinking and depression. Addressing common mental disorders (CMDs) such as depression and alcohol use disorders is key to effective HIV treatment. We explored the experiences and perceptions of young South African women on antiretroviral therapy (ART) of a lay health worker (LHW)-delivered psychosocial intervention based on motivational interviewing (MI) and problem-solving therapy (PST) to reduce heavy drinking and depression. We conducted 27 in-depth interviews with young women (aged 18–35) recruited from 16 primary care clinics in the Western Cape province of South Africa. Discussion topics included young women’s life experiences leading to their enrollment in the program, their perceptions of the counselling sessions and the quality of their interaction with the counsellor. Qualitative data were analyzed using a framework approach. The findings highlighted the impact adverse life experiences and stressful life circumstances have on young women’s use of alcohol and symptoms of depression and the effect this has on ART adherence. The findings suggest that women found the intervention components that helped them develop strategies for coping with their past experiences, managing current life stressors, and regulating negative thoughts and emotions most beneficial. Taken together, these findings confirm the acceptability of LHW-delivered MI-PST counselling for this population, but suggest that the relevance of the MI-PST intervention for this highly vulnerable population could be further enhanced by including a focus on psychological trauma.

Marieke TheronMarieke Theron
Marieke Theron
ESElizabeth Catherina Swart
Elizabeth Catherina Swart
MLMukhethwa Londani
Mukhethwa Londani
CPCharles D.H. Parry
Charles D.H. Parry
PWPetal Petersen Williams
Petal Petersen Williams
NHNadine Harker
Nadine Harker
Background: South Africa has a high prevalence of heavy episodic drinking (HED). Due to the high levels of alcohol misuse and violence, public hospital intensive care units were often overrun during the COVID-19 pandemic. This research investigated alcohol intake behaviour change during differing levels of lockdown restrictions, which included bans on alcohol sales. Methods: A self-reported Facebook survey ran from July to November 2020. The questions included socio-demographics, income, alcohol intake, purchasing behaviour, and reasoning. Chi-square tests/Fisher’s exact test for categorical data, Student’s t-test for normal continuous data, and the Mann–Whitney U test for non-normal data were applied. Multiple logistic regression was run for HED versus moderate drinkers. Results: A total of 798 participants took part in the survey, of which 68.4% were female. Nearly 50% of participants fell into the HED category and the majority bought alcohol illegally during restrictions. HED respondents who drank more alcohol than usual during restrictions reported that they felt stressed, needed to relax, and were bored. Conclusions: Policies intended to increase the pricing of alcohol may have the potential to reduce alcohol intake. Reducing stress and anxiety may be key to curtailing HED during emergency situations.

8 December 2017 in Substance Use & Misuse
Verified
Journal Article
Closed access
PWPetal Petersen Williams
Petal Petersen Williams
CMCatherine Mathews
Catherine Mathews
EJEsmè R. Jordaan
Esmè R. Jordaan
CPCharles D.H. Parry
Charles D.H. Parry
Introduction: Little is known about the nature and extent of substance use among pregnant women in Cape Town (South Africa) despite the very high levels of substance use and related consequences such as FASD in this part of the country. The aim of the study was to determine predictors of alcohol use among pregnant women. Methods: A cross-sectional survey was conducted among pregnant women attending 11 Midwife Obstetric Units (MOUs) in greater Cape Town. A two-stage cluster survey design was used. In total, 5231 pregnant women were screened to assess self-reported prevalence estimates. Of these, 684 (13.1%) were intentionally sub-sampled and completed an interviewer-administered questionnaire and provided a urine sample for biological screening. Univariate and multivariate statistical procedures were used to determine factors predictive of alcohol use. Results: Findings highlight various demographic, social and partner substance use predictors for both self-reported and biologically verified alcohol use in two different models. Being Coloured, having a marital status other than being married, experiencing violence or aggression in the past 12 months compared to more than 12 months ago, having a partner who drinks, and partner drug use are all independently associated with higher odds of self-reported alcohol use. In contrast, only partner tobacco use is independently associated with higher odds of biologically verified alcohol use. Conclusion: Knowing the risk factors for alcohol use in pregnancy is important so that intervention efforts can accurately target those women in need of services. Intervention programs addressing risk factors of high-risk pregnant women are needed.

22 April 2022 in PLOS Global Public Health
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Journal Article
Open access
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SCSally Casswell
Sally Casswell
THTaisia Huckle
Taisia Huckle
KPKarl Parker
Karl Parker
JRJose Romeo
Jose Romeo
TGThomas Graydon-Guy
Thomas Graydon-Guy
NHNadine Harker
Nadine Harker
This study developed a measurement tool to assess stringency and ‘on-the-ground’ impact of four key alcohol policy domains to create an alcohol policy index suitable for benchmarking alcohol policy and assessing change over time in middle- and high-income countries. It involved a collaboration between researchers in 12 diverse countries: New Zealand; Australia; England; Scotland; Netherlands; Vietnam; Thailand; South Africa; Turkey; Chile; Saint Kitts and Nevis and Mongolia. Data on the four most effective alcohol policy domains (availability, pricing policy, alcohol marketing, drink driving) were used to create an alcohol policy index based on their association with alcohol per capita consumption (APC) of commercial (recorded) alcohol. An innovation was the inclusion of measures of impact along with the stringency of the legislation or regulation. The resulting International Alcohol Control (IAC) Policy Index showed a very high negative correlation (-0.91) with recorded APC. Greater affordability of alcohol, an impact measure taking into account prices paid and countries’ Gross Domestic Product, was predictive of higher APC (-0.80). Countries in which more modes of alcohol marketing are legally allowed and used had higher APC. Legislation on outlet density and drink driving predicted APC whereas trading hours did not. While stringency and impact measures varied between domains in terms of relationship with APC, overall, there was a strong correlation between impact and stringency (0.77). The IAC Policy Index, which includes measures of policy stringency and ‘on-the-ground’ impacts in relation to four key policy areas, was found to be strongly associated with commercial alcohol consumed in a number of diverse country settings. It showed a larger relationship than previous indices that include more policy dimensions. The index provides a relatively simple tool for benchmarking and communication with policy makers to encourage a strong focus on uptake of these four most effective alcohol policies.