Boris Choy

Dr. Boris Choy

Discipline of Business Analytics, The University of Sydney, Australia
orcid

Research Focus & Metrics

Academic Career Length

32Years (1995-Present)

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

Representative Publications

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1 July 2006 in Nutrition and Cancer
Verified
Journal Article
Closed access
JRJane A. Read
Jane A. Read
BCBoris Choy
Boris Choy
PBPhilip J. Beale
Philip J. Beale
SCStephen J. Clarke
Stephen J. Clarke
The purpose of this study was to evaluate novel inflammatory and nutritional prognostic factors in patients with advanced colorectal cancer (ACRC). All ACRC patients attending the clinic for palliative treatment were eligible for study. Demographics, including performance status (PS), C-reactive protein (CRP), albumin (Alb), Glasgow prognostic score (GPS), weight, weight history, body mass index (BMI), and nutritional status using the patient-generated subjective global assessment (PGSGA), were collected and correlated with survival. At a median follow-up of 29.8 mo, with a minimum follow-up of 15.7 mo, the median survival was 9.9 mo (0.8–21.8 mo). Fifteen (29%) patients were newly diagnosed (stage IV colorectal cancer), and 36 (71%) had received prior chemotherapy. Although the median BMI was 27 kg/m2 (range = 17–41 kg/m2), 28 of 50 (56%) were nutritionally at risk. In fact, 19 patients (38%) were critically in need of nutrition intervention (PGSGA score of ≥9). Thirty-three of 48 patients (69%...

1 September 2005 in Nutrition and Cancer
Verified
Journal Article
Closed access
JRJane A. Read
Jane A. Read
NCNaomi Crockett
Naomi Crockett
DVDianne H. Volker
Dianne H. Volker
PMPenny MacLennan
Penny MacLennan
BCBoris Choy
Boris Choy
SCStephen J. Clarke
Stephen J. Clarke
The evaluation of nutritional status in cancer patients is often neglected in spite of the fact that poor nutritional status may adversely affect prognosis and treatment tolerance. In day-to-day oncology practice, a sensitive but simply applied nutritional assessment tool is needed to identify at-risk patients. Several tools exist; however, none has been universally accepted. The aim of this study was to compare two potential tools, the Mini-Nutritional Assessment (MNA) and the scored Patient Generated Subjective Global Assessment (PGSGA). The MNA is more simply applied and does not require a trained dietitian. The PGSGA has been previously validated in cancer patients. One hundred fifty-seven newly diagnosed cancer patients were assessed using both tools. Of these, 126 were reassessed at 4-6 wk, and 104 were reassessed at Weeks 8-12 after initial assessment. A significant negative correlation was found between the tools at all three time periods (at baseline r = -0.76; P < 0.001). Taking the PG...

1 June 2008 in Australian & New Zealand Journal of Statistics
Verified
Journal Article
Closed access
PDF file
BCBoris Choy
Boris Choy
JCJennifer Chan
Jennifer Chan

1 January 2009 in Journal of Bodywork and Movement Therapies
Verified
Journal Article
Closed access
DCDorothy Curnow
Dorothy Curnow
DCDeirdre Cobbin
Deirdre Cobbin
JWJennifer Wyndham
Jennifer Wyndham
BCBoris Choy
Boris Choy

1 March 2021 in China & World Economy
Verified
Journal Article
Open access
PDF file
TQTongwei Qiu
Tongwei Qiu
BCBoris Choy
Boris Choy
YLYifei Li
Yifei Li
BLBiliang Luo
Biliang Luo
JLJing Li
Jing Li
This study uses data covering 3,914 farm households, collected from Henan province in China, to investigate the links between the price of agricultural mechanization services and farmers' exit from land operation. The results indicate that the increasing price of agricultural mechanization services leads to farmers leaving land operation, especially when the high sunk costs and the long‐term breakeven period of self‐owned machinery are considered. This effect is intensified by the rapid rural–urban migration in China. Further analysis reveals that the surge in service prices reduced land renting‐in and encouraged non‐grain production. Our analysis suggests that the agricultural mechanization service market in China tends to work against the survival of smallholder farmers. However, the price of agricultural mechanization services is conducive to eliminating less‐productive farmers and cultivating new agricultural operators.

1 December 2007 in Acupuncture in Medicine
Verified
Journal Article
Closed access
MSMark W Strudwick
Mark W Strudwick
RHRoderick C Hinks
Roderick C Hinks
BCBoris Choy
Boris Choy
Introduction: Point injection as a therapeutic technique is well documented, but its physiological effects have not been formally compared with traditional acupuncture. One aim of this study was to compare the effects of the two techniques at one acupuncture point, as a step towards understanding the mode of action of point injection and validating its clinical use. A second aim was to explore whether repeated point injection at the same site might provide a way of increasing the dose of stimulation, in the hope of identifying a dose response curve which could be an alternative strategy to placebo control in demonstrating the biological effects of acupuncture. Methods: Sixty nine healthy subjects (age range 18–56 years, mean 29.9; 48 females) completed the study, which employed a counterbalanced experimental design with two stimulation sessions of LI4 approximately one week apart. One half of the participants received point injection first, and the other half received traditional acupuncture first. Baseline physiological data were recorded, then measurements were made before, during and after stimulation; each subject also reported needle sensation ( de qi). The measures were heart rate, derived pressure rate product and mean arterial pressure. Results: Although stronger sensations of de qi were reported with point injection, no significant differences were found for mean heart rate (HR), pressure rate product (PRP) and mean arterial pressure (MAP) before and after stimulation by the two techniques. No subject gender or age bias was encountered and previous exposure to acupuncture had no effect on outcome. Power spectral analysis of heart rate variability (HRV) made on data from a small subset (n=10) of this cohort also showed no significant differences in autonomic response. Conclusion: Point injection and traditional acupuncture seem to provoke similar physiological responses, although the greater needle sensation seen with point injection might indicate it could have more powerful clinical effects. Further studies of repeated point injection are necessary to indicate whether this technique may provide a method of increased strength of point stimulation, as an alternative to traditional needling in acupuncture research.