Nikki McCaffrey

Dr. Nikki McCaffrey


Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

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

Representative Publications

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20 September 2016 in Health and Quality of Life Outcomes
Verified
Journal Article
Open access
PDF file
NMNikki McCaffrey
Nikki McCaffrey
Billingsley KaambwaBillingsley Kaambwa
Billingsley Kaambwa
DCDavid C. Currow
David C. Currow
JRJulie Ratcliffe
Julie Ratcliffe
Although a five level version of the widely-used EuroQol 5 dimensions (EQ-5D) instrument has been developed, population norms are not yet available for Australia to inform the future valuation of health in economic evaluations. The aim of this study was to estimate HrQOL normative values for the EQ-5D-5L preference-based measure in a large, randomly selected, community sample in South Australia. The EQ-5D-5L instrument was included in the 2013 South Australian Health Omnibus Survey, an interviewer-administered, face-to-face, cross-sectional survey. Respondents rated their level of impairment across dimensions (mobility, self-care, usual activities, pain/discomfort, and anxiety/depression) and global health rating on a visual analogue scale (EQ-VAS). Utility scores were derived using the newly-developed UK general population-based algorithm and relationships between utility and EQ-VAS scores and socio-demographic factors were also explored using multivariate regression analyses. Ultimately, 2,908 adults participated in the survey (63.4 % participation rate). The mean utility and EQ-VAS scores were 0.91 (95 CI 0.90, 0.91) and 78.55 (95 % CI 77.95, 79.15), respectively. Almost half of respondents reported no problems across all dimensions (42.8 %), whereas only 7.2 % rated their health >90 on the EQ-VAS (100 = the best health you can imagine). Younger age, male gender, longer duration of education, higher annual household income, employment and marriage/de facto relationships were all independent, statistically significant predictors of better health status (p < 0.01) measured with the EQ-VAS. Only age and employment status were associated with higher utility scores, indicating fundamental differences between these measures of health status. This is the first Australian study to apply the EQ-5D-5L in a large, community sample. Overall, findings are consistent with EQ-5D-5L utility and VAS scores reported for other countries and indicate that the majority of South Australian adults report themselves in full health. When valuing health in Australian economic evaluations, the utility population norms can be used to estimate HrQOL. More generally, the EQ-VAS score may be a better measure of population health given the smaller ceiling effect and broader coverage of HrQOL dimensions. Further research is recommended to update EQ-5D-5L population norms using the Australian general population specific scoring algorithm once this becomes publically available.

1 January 2017 in JAMA Internal Medicine
Verified
Journal Article
Open access
PDF file
MAMeera Agar
Meera Agar
PLPeter G. Lawlor
Peter G. Lawlor
Steve QuinnSteve Quinn
Steve Quinn
BDBrian Draper
Brian Draper
GCGideon A. Caplan
Gideon A. Caplan
DCDavid C Currow
David C Currow
Delirium is highly prevalent in patients receiving palliative care, with up to 4 in 10 people having delirium on admission to a palliative care unit, and higher rates seen at the end of life.1 Symptom relief is important to reduce the known distress associated with delirium; thus, effective, evidence-based management strategies that optimally balance benefits and risks are needed.2

1 August 2016 in Journal of Pain and Symptom Management
Verified
Journal Article
Closed access
NMNikki McCaffrey
Nikki McCaffrey
SBSandra Bradley
Sandra Bradley
JRJulie Ratcliffe
Julie Ratcliffe
DCDavid C. Currow
David C. Currow

1 May 2015 in Journal of Pain and Symptom Management
Verified
Journal Article
Open access
DCDavid C. Currow
David C. Currow
Steve QuinnSteve Quinn
Steve Quinn
MAMeera Agar
Meera Agar
BFBelinda Fazekas
Belinda Fazekas
JHJanet Hardy
Janet Hardy
KCKatherine Clark
Katherine Clark
Does octreotide reduce vomiting in cancer-associated bowel obstruction? To evaluate the net effect of adding octreotide or placebo to standardized therapies on the number of days free of vomiting for populations presenting with vomiting and inoperable bowel obstruction secondary to cancer or its treatment. Twelve services enrolled people with advanced cancer presenting with vomiting secondary to bowel obstruction where surgery or anti-cancer therapies were not indicated immediately. In a double-blind study, participants were randomized to placebo or octreotide (600 μg/24 hours by infusion). Both arms received standardized supportive therapy (infusion of ranitidine [200 mg/24 hours], dexamethasone [8 mg/24 hours], and parenteral hydration [10-20 mL/kg/24 hours]). The primary outcome was patient-reported days free of vomiting at 72 hours. In a study that recruited to the numbers identified in its power calculation, 87 participants provided data at 72 hours (45, octreotide arm). Seventeen people (octreotide) and 14 (placebo) were free of vomiting for 72 hours (P = 0.67). Mean days free of vomiting were 1.87 (SD 1.10; octreotide) and 1.69 (SD 1.15; placebo; P = 0.47). An adjusted multivariate regression of the incidence of vomiting over the study showed a reduced number of episodes of vomiting in the octreotide group (incidence rate ratio = 0.40; 95% CI: 0.19-0.86; P = 0.019); however, people in the octreotide arm were 2.02 times more likely to be administered hyoscine butylbromide (P = 0.004), potentially reflecting increased colicky pain. Although there was no reduction in the number of days free of vomiting, the multivariate analysis suggests that further study of somatostatin analogues in this setting is warranted.

29 March 2017 in Thorax
Verified
Journal Article
Open access
PDF file
DCD C Currow
D C Currow
EGE Dal Grande
E Dal Grande
DFD Ferreira
D Ferreira
MJM J Johnson
M J Johnson
NMNikki McCaffrey
Nikki McCaffrey
MEM Ekström
M Ekström
Little is known about the impact of chronic breathlessness (modified Medical Research Council (mMRC) score ≥2 for most days, at least three of the last six months) on health-related quality of life (Short Form-12 (SF-12)). 3005 adults from randomly selected households were interviewed face-to-face in South Australia. mMRC ≥2 community prevalence was 2.9%. Adjusted analyses showed clinically meaningful and statistically significant decrements of physical and mental components of SF-12 (mean SF-12 summary scores in physical (−13.0 (−16.0 to −10.2)) and mental (−10.7 (−13.7 to −7.8)) components compared with people with mMRC=0) as chronic breathlessness severity increased, across five age groupings.

1 September 2015 in Social Science & Medicine
Verified
Journal Article
Open access
Billingsley KaambwaBillingsley Kaambwa
Billingsley Kaambwa
ELEmily Lancsar
Emily Lancsar
NMNikki McCaffrey
Nikki McCaffrey
GCGang Chen
Gang Chen
LGLiz Gill
Liz Gill
JRJulie Ratcliffe
Julie Ratcliffe
Consumer directed care (CDC) is currently being embraced internationally as a means to promote autonomy and choice for consumers (people aged 65 and over) receiving community aged care services (CACSs). CDC involves giving CACS clients (consumers and informal carers of consumers) control over how CACSs are administered. However, CDC models have largely developed in the absence of evidence on clients' views and preferences. We explored CACS clients' preferences for a variety of CDC attributes and identified factors that may influence these preferences and potentially inform improved design of future CDC models. Study participants were clients of CACSs delivered by five Australian providers. Using a discrete choice experiment (DCE) approach undertaken in a group setting between June and December 2013, we investigated the relative importance to CACS consumers and informal (family) carers of gradations relating to six salient features of CDC (choice of service provider(s), budget management, saving unused/unspent funds, choice of support/care worker(s), support-worker flexibility and level of contact with service coordinator). The DCE data were analysed using conditional, mixed and generalised logit regression models, accounting for preference and scale heterogeneity. Mean ages for 117 study participants were 80 years (87 consumers) and 74 years (30 informal carers). All participants preferred a CDC approach that allowed them to: save unused funds from a CACS package for future use; have support workers that were flexible in terms of changing activities within their CACS care plan and; choose the support workers that provide their day-to-day CACSs. The CDC attributes found to be important to both consumers and informal carers receiving CACSs will inform the design of future CDC models of service delivery. The DCE approach used in this study has the potential for wide applicability and facilitates the assessment of preferences for elements of potential future aged care service delivery not yet available in policy.