Natalie A. Johnson
University of Newcastle
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Publication
Featured researches published by Natalie A. Johnson.
Australian and New Zealand Journal of Public Health | 1998
Lynette Lim; Natalie A. Johnson; Rachel L. O'Connell; Richard F. Heller
We tested the hypothesis that low quality of life (QOL) after discharge from hospital with ischaemic heart disease (IHD) is associated with higher rates of later adverse outcomes (death and subsequent hospital admission for acute myocardial infarction or congestive cardiac failure). Three hundred and seventy‐five patients previously enrolled in an intervention study which assessed QOL six months after hospitalisation were followed up for an additional 18 months. The rates of adverse outcomes increased as QOL decreased (high QOL 9%; moderate 18%; low 28%). After adjustment for known prognostic factors, the risk of an adverse outcome was still higher in ‘low’ and ‘moderate’ compared to ‘high’ QOL subjects (low QOL adjusted OR=2.6, 95% Cl=1.2–5.8; moderate 1.9, 0.8‐4.2). In conclusion, QOL after discharge from hospital appears to be an independent predictor of later morbidity and mortality.
Journal of Cardiopulmonary Rehabilitation | 2004
Natalie A. Johnson; Amanda Nagle; Kerry J. Inder; John Wiggers
BACKGROUND Although practice guidelines and policy statements for cardiac rehabilitation recommend that it be offered to all patients with cardiovascular disease, the participation rates in most Western countries are low. PURPOSE This study aimed to determine the factors associated with referral to outpatient cardiac rehabilitation in the Hunter region of New South Wales, Australia. METHODS The study sample comprised 1933 patients discharged from public hospitals in the Hunter region between March 1, 1998 and February 28, 1999 who were eligible for cardiac rehabilitation, and for inclusion on the Hunter Area Heart and Stroke Register (the Register). Data were obtained from the Register database (gender, age, clinical information) and via a self-completed questionnaire eliciting referral, sociodemographic, and cardiovascular disease risk factor information. Multiple logistic regression analysis was conducted to determine the factors independently associated with referral. RESULTS : Of the respondents (1202/1933), 41% (493/1202; 95% confidence interval, 38-44%) reported that they had been referred to outpatient cardiac rehabilitation. The factors independently associated with referral were age younger than 65 years, previous participation in an outpatient cardiac rehabilitation program, admission to a hospital that provides outpatient cardiac rehabilitation, a discharge diagnosis of acute myocardial infarction, and coronary artery bypass surgery. CONCLUSIONS Younger age, previous participation in outpatient cardiac rehabilitation, admission to a hospital that provides outpatient cardiac rehabilitation, a discharge diagnosis of acute myocardial infarction, and coronary artery bypass surgery were associated with referral to cardiac rehabilitation. Research testing strategies designed to increase cardiac rehabilitation referral rates are needed and could include testing the potential role of modern quality management methods.
European Journal of Preventive Cardiology | 2010
Natalie A. Johnson; Kerry J. Inder; Steven J. Bowe
Background Cardiac rehabilitation (CR) is an underutilized evidence-based treatment. We described trends in referral to outpatient CR (OCR) and the factors associated with referral. Design Cross-sectional survey data provided by Hunter residents aged 20 years or older discharged from public hospitals in the region between 2002 and 2007 with an OCR eligible diagnosis were extracted from the Hunter New England Heart and Stroke Register database. Methods Trends in referral were determined using the χ2 test for trend. Factors associated with referral were examined using multiple logistic regression. Results Sixty-five percent (4971 of 7678) of patients provided sufficient data for inclusion in the analysis. Approximately half of the patients reported being referred to OCR. No increase over time was observed. Factors associated with referral were age less than 70 years, male sex, being married, urban residence, at least one admission to the tertiary referral hospital for cardiology, at least one admission for acute myocardial infarction, revascularization, no admissions for congestive heart failure, a self-reported history of high cholesterol, and no history of stroke or atrial fibrillation. Conclusion Access to this treatment of proven benefit remained suboptimal despite the provision of new programs and expansion of existing programs. Automatic referral, which is recommended in Australia, should be standard practice.
European Journal of Preventive Cardiology | 2009
Natalie A. Johnson; Lynette Lim; Steven J. Bowe
Background Poor health-related quality of life (HRQL) has been shown to be predictive of adverse outcomes in cardiac patients. As women with coronary heart disease have been shown to have lower HRQL than men with coronary heart disease, women are at greater risk of a poor clinical outcome. This study tested the effect of a 12-week home walking intervention after completion of outpatient cardiac rehabilitation (OCR) on HRQL and maintenance of physical activity among women. Design Multicenter two-group randomized trial. Methods After completion of OCR, participants were randomly allocated to the intervention or usual care groups. The outcomes were HRQL (assessed using the MacNew Heart Disease HRQL instrument) and self-reported physical activity (assessed using the Stages of Change model of exercise behavior) at 3, 6, and 12 months after OCR. Results Seventy-two women were randomized to the intervention and 81 to usual care. Attrition was greater in the treatment group (13 vs. 1%). HRQL scores increased relative to the base level in both arms and were significantly higher in the intervention group at 6 months, but not at 3 or 12 months. Maintenance of physical activity declined over time in both groups, however, this decline was significantly reduced among women in the intervention group. Conclusion HRQL improved in both groups, but seemed to increase earlier among women in the intervention group. As maintenance of physical activity was higher among women in the intervention group, this minimal intervention could be used to facilitate womens progression from supervised to independent exercise.
JMIR Research Protocols | 2013
Natalie A. Johnson; Kypros Kypri; John Attia
Background Alcohol screening and brief intervention is recommended for widespread implementation in health care systems, but it is not used routinely in most countries for a variety of reasons. Electronic screening and brief intervention (e-SBI), in which patients complete a Web-based questionnaire and are provided with personalized feedback on their drinking, is a promising alternative to practitioner delivered intervention, but its efficacy in the hospital outpatient setting has not been established. Objective The objective of our study was to establish the feasibility of conducting a full-scale randomized controlled trial to determine whether e-SBI reduces alcohol consumption in hospital outpatients with hazardous or harmful drinking. Methods The study was conducted in the outpatient department of a large public hospital in Newcastle (population 540,000), Australia. Adults with appointments at a broad range of medical and surgical outpatient clinics were invited to complete an e-SBI program on a laptop, and to report their impressions via a short questionnaire. Follow-up assessments were conducted 2-8 weeks later by email and post. Results We approached 172 outpatients and 108/172 (62.8%) agreed to participate. Of the 106 patients capable of self-administering the e-SBI, 7/106 (6.6%) did not complete it (3 due to technical problems and 4 because they were called for their appointment), 15/106 (14.2%) indicated that they had not consumed any alcohol in the past 12 months, 43/106 (40.6%) screened negative for unhealthy alcohol use (scored less than 5 on the Alcohol Use Disorders Identification Test Consumption [AUDIT-C] questions), 33/106 (31.1%) screened positive for hazardous or harmful drinking (AUDIT-C score 5-9), and 8/106 (7.5%) screened positive for possible alcohol dependence (AUDIT-C score 10-12). Among the subgroup with hazardous or harmful drinking, 27/33 (82%) found the feedback on their drinking very, quite, or somewhat useful, 33/33 (100%) thought the intervention would appeal to most or some of the people who attend the service, and 22/30 (73%) completed the follow-up. We also found that some well established procedures used in trials of e-SBI in the primary care setting did not translate to the hospital outpatient setting (1) we experienced delays because the e-SBI program had to be developed and maintained by the health service’s information technology staff for security reasons, (2) recruiting patients as they left the reception desk was impractical because patients tended to arrive at the beginning of the clinics with few arrivals thereafter, and (3) use of a laptop in a fixed location resulted in some patients rushing through the e-SBI so they could return to their seat in the area they had been advised to wait in. Conclusions e-SBI is acceptable to outpatients and with some adaptation to organizational and physical conditions, it is feasible to recruit and screen patients and to deliver the intervention without disrupting normal service provision. This suggests that e-SBI could be provided routinely in this important setting if shown to be efficacious.
Drug and Alcohol Dependence | 2014
Natalie A. Johnson; Kypros Kypri; Joanna Latter; Patrick McElduff; John B. Saunders; Richard Saitz; John Attia; Adrian Dunlop; Christopher M. Doran; Luke Wolfenden; Jim McCambridge
BACKGROUND Few studies have examined the prevalence of unhealthy alcohol use in the hospital outpatient setting. Our aim was to estimate the prevalence of unhealthy alcohol use among patients attending a broad range of outpatient clinics at a large public hospital in Australia. METHODS Adult hospital outpatients were invited to complete the Alcohol Use Disorders Identification Test Consumption questions (AUDIT-C) using an iPad as part of a randomised trial testing the efficacy of alcohol electronic screening and brief intervention. Unhealthy alcohol use was defined as an AUDIT-C score ≥5 among men and ≥4 among women. RESULTS Sixty percent (3616/6070) of invited hospital outpatients consented, of whom 89% (3206/3616) provided information on their alcohol consumption (either reported they had not consumed any alcohol in the last 12 months or completed the AUDIT-C). The prevalence of unhealthy alcohol use was 34.7% (95% confidence interval [CI]: 33.0-36.3%). The prevalence among men aged 18-24 years, 25-39 years, 40-59 years and 60 years and older, was 74.4% (95% CI: 68.4-80.4%), 54.3% (95% CI: 48.7-59.8%), 44.1% (95% CI: 39.9-48.3%), and 27.0% (95% CI: 23.6-30.4%), respectively (43.1% overall; 95% CI: 40.8-45.5%). The prevalence among women aged 18-24 years, 25-39 years, 40-59 years, and 60 years and older, was 48.6% (95% CI: 39.2-58.1%), 36.9% (95% CI: 31.2-42.6%), 25.2% (95% CI: 21.5-29.0%) and 14.5% (95% CI: 11.7-17.3%), respectively (24.9% overall; 95% CI: 22.7-27.1%). CONCLUSION A large number of hospital outpatients who are not currently seeking treatment for their drinking could benefit from effective intervention in this setting.
Preventive Medicine | 2016
Erica L. James; Megan Freund; Angela Booth; Mitch J. Duncan; Natalie A. Johnson; Camille E. Short; Luke Wolfenden; Fiona Stacey; Frances Kay-Lambkin; Corneel Vandelanotte
BACKGROUND Growing evidence points to the benefits of addressing multiple health behaviors rather than single behaviors. PURPOSE This review evaluates the relative effectiveness of simultaneous and sequentially delivered multiple health behavior change (MHBC) interventions. Secondary aims were to identify: a) the most effective spacing of sequentially delivered components; b) differences in efficacy of MHBC interventions for adoption/cessation behaviors and lifestyle/addictive behaviors, and; c) differences in trial retention between simultaneously and sequentially delivered interventions. METHODS MHBC intervention trials published up to October 2015 were identified through a systematic search. Eligible trials were randomised controlled trials that directly compared simultaneous and sequential delivery of a MHBC intervention. A narrative synthesis was undertaken. RESULTS Six trials met the inclusion criteria and across these trials the behaviors targeted were smoking, diet, physical activity, and alcohol consumption. Three trials reported a difference in intervention effect between a sequential and simultaneous approach in at least one behavioral outcome. Of these, two trials favoured a sequential approach on smoking. One trial favoured a simultaneous approach on fat intake. There was no difference in retention between sequential and simultaneous approaches. CONCLUSIONS There is limited evidence regarding the relative effectiveness of sequential and simultaneous approaches. Given only three of the six trials observed a difference in intervention effectiveness for one health behavior outcome, and the relatively consistent finding that the sequential and simultaneous approaches were more effective than a usual/minimal care control condition, it appears that both approaches should be considered equally efficacious. PROSPERO registration number: CRD42015027876.
PLOS ONE | 2015
Ronald C. Plotnikoff; Sarah A. Costigan; Camille E. Short; Anne Grunseit; Erica L. James; Natalie A. Johnson; Adrian Bauman; Catherine D’Este; Hidde P. van der Ploeg; Ryan E. Rhodes
This study examined factors associated with higher sitting time in general, chronic disease, and psychologically-distressed, adult populations (aged ≥45 years). A series of logistic regression models examined potential socio-demographic and health factors associated with higher sitting (≥6hrs/day) in adults from the 45 and Up Study (n = 227,187), including four separate subsamples for analysis comprising those who had ever had heart disease (n = 26,599), cancer (n = 36,381), diabetes (n = 19,550) or psychological distress (n = 48,334). Odds of higher sitting were significantly (p<.01) associated with a number of factors across these groups, with an effect size of ORs≥1.5 observed for the high-income ≥
Rehabilitation Research and Practice | 2010
Natalie A. Johnson; Kerry J. Inder; Ben Ewald; Erica L. James; Steven J. Bowe
70,000AUD, employed full-time and severe physical limitations demographics. Identification of key factors associated with higher sitting time in this population-based sample will assist development of broad-based, public health and targeted strategies to reduce sitting-time. In particular, those categorized as being high-income earners, full-time workers, as well as those with severe physical limitations need to be of priority, as higher sitting appears to be substantial across these groups.
Systematic Reviews | 2017
Victor Mogre; Natalie A. Johnson; Flora Tzelepis; Jonathan E. Shaw; Christine Paul
We test the hypothesis that the odds of self-reported receipt of lifestyle advice from a health care provider will be lower among outpatient cardiac rehabilitation (OCR) nonattendees and nonreferred patients compared to OCR attendees. Logistic regression was used to analyse cross-sectional data provided by 65% (4971/7678) of patients aged 20 to 84 years discharged from public hospitals with a diagnosis indicating eligibility for OCR between 2002 and 2007. Among respondents, 71% (3518) and 55% (2724) recalled advice regarding physical activity and diet, respectively, while 88% (592/674) of smokers recalled quit advice. OCR attendance was low: 36% (1764) of respondents reported attending OCR, 11% (552) did not attend following referral, and 45% (2217) did not recall being invited. The odds of recalling advice regarding physical activity and diet were significantly lower among OCR nonattendees compared to attendees (OR 0.34, 95% CI 0.21, 0.56 and OR 0.33, 95% CI 0.25, 0.44, resp.) and among nonreferred respondents compared to OCR attendees (OR 0.10, 95% CI 0.07, 0.15 and OR 0.17, 95% CI 0.14, 0.22, resp.). Patients hospitalised for coronary heart disease should be referred to OCR or a suitable alternative to improve recall of lifestyle advice that will reduce the risk of further coronary events.