Norma Bulamu

Dr. Norma Bulamu

orcid

Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

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

Representative Publications

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9 November 2015 in Health and Quality of Life Outcomes
Verified
Journal Article
Open access
PDF file
NBNorma Bulamu
Norma Bulamu
Billingsley KaambwaBillingsley Kaambwa
Billingsley Kaambwa
JRJulie Ratcliffe
Julie Ratcliffe
This paper describes the methods and results of a systematic review to identify instruments used to measure quality of life outcomes in older people. The primary focus of the review was to identify instruments suitable for application with older people within economic evaluations conducted in the aged care sector. Online databases searched were PubMed, Medline, Scopus, and Web of Science, PsycInfo, CINAHL, Embase and Informit. Studies that met the following criteria were included: 1) study population exclusively above 65 years of age 2) measured health status, health related quality of life or quality of life outcomes more broadly through use of an instrument developed for this purpose, 3) used a generic preference based instrument or an older person specific preference based or non-preference based instrument or both, and 4) published in journals in the English language after 2000. The most commonly applied generic preference based instrument in both the community and residential aged care context was the EuroQol - 5 Dimensions (EQ-5D), followed by the Adult Social Care Outcomes Toolkit (ASCOT) and the Health Utilities Index (HUI2/3). The most widely applied older person specific instrument was the ICEpop CAPability measure for Older people (ICECAP-O) in both community and residential aged care. In the absence of an ideal instrument for incorporating into economic evaluations in the aged care sector, this review recommends the use of a generic preference based measure of health related quality of life such as the EQ-5D to obtain quality adjusted life years, in combination with an instrument that has a broader quality of life focus like the ASCOT, which was designed specifically for evaluating interventions in social care or the ICECAP-O, a capability measure for older people.

14 December 2018 in BMC Health Services Research
Verified
Journal Article
Open access
PDF file
NBNorma Bulamu
Norma Bulamu
Billingsley KaambwaBillingsley Kaambwa
Billingsley Kaambwa
JRJulie Ratcliffe
Julie Ratcliffe
This paper reports the methods and findings from a systematic review of economic evaluations conducted in the community aged care sector between 2000 and 2016. Online databases searched were PubMed, Medline, Scopus, and web of science, CINAHL and informit. Studies were included if they 1) were full economic evaluations that compared both the costs and outcomes of two or more interventions 2) in study population of people aged 65 years and over 3) dependent older people living in the community 4) alternatives being compared were care models or service delivery interventions in the community aged care sector (a group of programs that have been established as a support system to allow older people to remain living in their own homes for as long as possible, as an alternative to institutional or residential care) and 5) published in the English language between 2000 and November 2016. Eleven studies reporting upon economic evaluations of service delivery interventions in community aged care were identified; the majority of which were undertaken in Europe. Critical appraisal of the identified studies highlighted the methodological rigour in these evaluations. This systematic review highlights the paucity of economic evaluation studies conducted to date in the community aged care sector. The findings highlight the importance of cost utility analysis methodology as it allows for a uniform outcome measure, that facilitates the comparison of different interventions. In addition, multi-attribute utility measures that represent those quality of life domains that are most important to older people should be used and attention must be paid to the inclusion of informal care costs and outcomes as this is a key resource in community aged care service delivery.

2 October 2021 in Health and Quality of Life Outcomes
Verified
Journal Article
Open access
PDF file
NBNorma Bulamu
Norma Bulamu
RVRavi Vissapragada
Ravi Vissapragada
GCGang Chen
Gang Chen
JRJulie Ratcliffe
Julie Ratcliffe
LMLouise A. Mudge
Louise A. Mudge
DWDavid Watson
David Watson
Aim: This study assessed the responsiveness and convergent validity of two preference-based measures; the newly developed cancer-specific EORTC Quality of Life Utility Measure-Core 10 dimensions (QLU-C10D) relative to the generic three-level version of the EuroQol 5 dimensions (EQ-5D-3L) in evaluating short-term health related quality of life (HRQoL) outcomes after esophagectomy. Methods: Participants were enrolled in a multicentre randomised controlled trial to determine the impact of preoperative and postoperative immunonutrition versus standard nutrition in patients with esophageal cancer. HRQoL was assessed seven days before and 42 days after esophagectomy. Standardized Response Mean and Effect Size were calculated to assess responsiveness. Ceiling effects for each dimension were calculated as the proportion of the best level responses for that dimension at follow-up/post-operatively. Convergent validity was assessed using Spearman’s correlation and the level of agreement was explored using Bland–Altman plots. Results: Data from 164 respondents (mean age: 63 years, 81% male) were analysed. HRQoL significantly reduced on both measures with large effect sizes (> 0.80), and a greater mean difference (0.29 compared to 0.16) on QLU-C10D. Both measures had ceiling effects (> 15%) on all dimensions at baseline. Following esophagectomy, ceiling effects were observed with self-care (86%), mobility (67%), anxiety/depression (55%) and pain/discomfort (19%) dimensions on EQ-5D-3L. For QLU-C10D ceiling effects were observed with emotional function (53%), physical function (16%), nausea (35%), sleep (31%), bowel problems (21%) and pain (20%). A strong correlation (r = 0.71) was observed between EQ-5D-3L anxiety and QLU-C10D emotional function dimensions. Good agreement (3.7% observations outside the limits of agreement) was observed between the utility scores. Conclusion: The QLU-C10D is comparable to the more widely applied generic EQ-5D-3L, however, QLU-C10D was more sensitive to short-term utility changes following esophagectomy. Cognisant of requirements by policy makers to apply generic utility measures in cost effectiveness studies, the disease-specific QLU-C10D should be used alongside the generic measures like EQ-5D-3L. Trial registration: The trial was registered with the Australian New Zealand Clinical Trial Registry (ACTRN12611000178943) on the 15th of February 2011.

4 February 2019 in World Journal of Surgery
Verified
Journal Article
Closed access
PDF file
NBNorma Bulamu
Norma Bulamu
GCGang Chen
Gang Chen
JRJulie Ratcliffe
Julie Ratcliffe
ASAnn Schloite
Ann Schloite
TBTim Bright
Tim Bright
DWDavid Watson
David Watson

Billingsley KaambwaBillingsley Kaambwa
Billingsley Kaambwa
NBNorma Bulamu
Norma Bulamu
CMChristine Mpundu-Kaambwa
Christine Mpundu-Kaambwa
Raymond OppongRaymond Oppong
Raymond Oppong
This study compares the empirical performance of a commonly used functional-status measure, the Barthel Index (BI), to that of a widely used generic preference-based instrument, the EuroQoL-5-Dimensions 3 Level (EQ-5D-3L), in older people. Data from older people receiving rehabilitation services were used to test the validity of the BI and EQ-5D-3L. Convergent validity was investigated using Spearman’s correlation, exploratory factor analysis (EFA), scatter plots, Krippendorff’s alpha and modified Bland-Altman plots. Discriminant validity was examined using Kruskal Wallis tests, ceiling effects and EFA. A total of 1690 participants were included in the analysis. The BI total and EQ-5D-3L utility scores showed moderate correlation (r = 0.51; Krippendorff’s alpha = 0.52). Kendall’s Tau-B correlations between BI items and EQ-5D-3L dimensions measuring the same construct were weak to moderate (0.05 ≤ absolute r ≤ 0.54). In the EFA, some BI items cross-loaded onto the same factors as EQ-5D-3L dimensions, suggesting that the instruments were interrelated. The BI, however, focuses more on physical functioning, while the EQ-5D-3L measures broader wellbeing concepts. Both instruments showed good discriminant validity and would therefore be equally valuable for measuring subgroup differences. Researchers should consider using the BI in rehabilitation to capture more physical functioning-specific constructs not measured by the EQ-5D-3L.

28 May 2021
Verified
Book Chapter
Closed access
STSharlotte Tusasiirwe
Sharlotte Tusasiirwe
PKPeninah Kansiime
Peninah Kansiime
SESarah Eyaa
Sarah Eyaa
FNFatuma Namisango
Fatuma Namisango
NBNorma Bulamu
Norma Bulamu
Although Ubuntu/Obuntu philosophy remains a foundation for many African communities, there are also growing concerns about its gradual erosion and assault. There is limited understanding about the struggles that African parents, especially in the diaspora experience as they pass on Ubuntu/Obuntu values to their children who live in a different context from the one their parents were raised in. This knowledge is crucial for facilitating Ubuntu/Obuntu's revitalisation and transmission to the younger generation. Using a critical approach, this chapter draws from lived experiences and existing literature to discuss two key challenges that the authors, who are African parents, have experienced in passing on Ubuntu/Obuntu. The challenges relate to past and ongoing colonialism manifested in Eurocentric education systems in Africa and the diaspora and dwindling community interactions. Strategies adopted by the authors in the diaspora to overcome these barriers and implications of an Ubuntu/Obuntu-inspired education are also presented.