Lan Gao

Lan Gao

orcid

Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

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

Representative Publications

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27 November 2020 in JMIR mHealth and uHealth
Verified
Journal Article
Open access
NSNarayan Subedi
Narayan Subedi
JRJonathan C Rawstorn
Jonathan C Rawstorn
LGLan Gao
Lan Gao
HKHarriet Koorts
Harriet Koorts
RMRalph Maddison
Ralph Maddison
Background: Coronary heart disease (CHD) is a leading cause of disability and deaths worldwide. Secondary prevention, including cardiac rehabilitation (CR), is crucial to improve risk factors and to reduce disease burden and disability. Accessibility barriers contribute to underutilization of traditional center-based CR programs; therefore, alternative delivery models, including cardiac telerehabilitation (ie, delivery via mobile, smartphone, and/or web-based apps), have been tested. Experimental studies have shown cardiac telerehabilitation to be effective and cost-effective, but there is inadequate evidence about how to translate this research into routine clinical practice. Objective: This systematic review aimed to synthesize research evaluating the effectiveness of implementing cardiac telerehabilitation interventions at scale in routine clinical practice, including factors underlying successful implementation processes, and experimental research evaluating implementation-related outcomes. Methods: MEDLINE, Embase, PsycINFO, and Global Health databases were searched from 1990 through November 9, 2018, for studies evaluating the implementation of telerehabilitation for the self-management of CHD. Reference lists of included studies and relevant systematic reviews were hand searched to identify additional studies. Implementation outcomes of interest included acceptability, appropriateness, adoption, feasibility, fidelity, implementation cost, penetration, and sustainability. A narrative synthesis of results was carried out. Results: No included studies evaluated the implementation of cardiac telerehabilitation in routine clinical practice. A total of 10 studies of 2250 participants evaluated implementation outcomes, including acceptability (8/10, 80%), appropriateness (9/10, 90%), adoption (6/10, 60%), feasibility (6/10, 60%), fidelity (7/10, 70%), and implementation cost (4/10, 40%), predominantly from the participant perspective. Cardiac telerehabilitation interventions had high acceptance among the majority of participants, but technical challenges such as reliable broadband internet connectivity can impact acceptability and feasibility. Many participants considered telerehabilitation to be an appropriate alternative CR delivery model, as it was convenient, flexible, and easy to access. Participants valued interactive intervention components, such as real-time exercise monitoring and feedback as well as individualized support. The penetration and sustainability of cardiac telerehabilitation, as well as the perspectives of CR practitioners and health care organizations, have received little attention in existing cardiac telerehabilitation research. Conclusions: Experimental trials suggest that participants perceive cardiac telerehabilitation to be an acceptable and appropriate approach to improve the reach and utilization of CR, but pragmatic implementation studies are needed to understand how interventions can be sustainably translated from research into clinical practice. Addressing this gap could help realize the potential impact of telerehabilitation on CR accessibility and participation as well as person-centered, health, and economic outcomes. Trial Registration: International Prospective Register of Systematic Reviews (PROSPERO) CRD42019124254; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=124254

1 February 2015 in Epilepsy Research
Verified
Journal Article
Closed access
LGLan Gao
Lan Gao
LXLi Xia
Li Xia
SPSong-Qing Pan
Song-Qing Pan
TXTao Xiong
Tao Xiong
SLShu-Chuen Li
Shu-Chuen Li

24 September 2012 in International Journal of Technology Assessment in Health Care
Verified
Journal Article
Closed access
LGLan Gao
Lan Gao
FZFei-Li Zhao
Fei-Li Zhao
SLShu-Chuen Li
Shu-Chuen Li
The aim of this study was to evaluate the long-term cost-utility of liraglutide versus glimepiride as add-on therapy to metformin in patients with type 2 diabetes mellitus (T2DM), based on the results of clinical trial conducted in Asian population. The validated UKPDS Outcomes Model was used to project life expectancy, quality adjusted life-years (QALYs), incidence of diabetes-related complication and cost of complications in patients receiving those regimens. Baseline cohort characteristics and treatment effects were derived from an Asian study. China-specific complication costs and utility score were taken from local studies. Patients' outcomes were modeled for 30 years and incremental cost-effectiveness ratios were calculated for liraglutide compared with glimepiride from the healthcare system perspective. Both future costs and clinical benefits were discounted at 3 percent. Sensitivity analyses were performed. Over a period of 30 years, compared with glimepiride, liraglutide 1.8 mg was associated with improvements in life expectancy (0.1 year) and quality adjusted life-year (0.168 QALY), and a reduced incidence of diabetes-related complications leading to an incremental cost-effectiveness ratio per QALY gained versus glimepiride of CNY 25,6871 (DEC 2010, 1 USD = 6.6227 CNY). Long-term projections indicated that liraglutide was associated with increased life expectancy, QALYs, and reduced complication incidences comparing with glimepiride. When the UK cost of liraglutide was discounted by 38 percent, liraglutide would be a cost-effective option in China from the healthcare system perspective using the 3X GDP/capita per QALY as the WTP threshold.

25 May 2012 in Experimental and Clinical Endocrinology & Diabetes
Verified
Journal Article
Closed access
PDF file
LGLan Gao
Lan Gao
FZF.-L. Zhao
F.-L. Zhao
SLS.-C. Li
S.-C. Li
To date no consensus has been reached on whether to administer statin to patients with Polycystic Ovary Syndrome (PCOS) routinely. Therefore, we conduct a meta-analysis to synthesize the literatures regarding therapeutic effects of statins on PCOS. A comprehensive literature search was performed using terms such as polycystic ovary syndrome, ovary polycystic disease, PCOS, hyperandrogaenemia; simvastatin, atorvastatin, lipidemic-modulating drugs, lipid lowering drugs, and testosterone; randomized controlled trials in the following bibliographic databases: Medline, Embase, Cochrane Controlled Trials Register. Identified reference lists were checked manually. In total, 4 RCTs were included. 3 of 4 studies were double-blinded while none reported whether of the data was analyzed using intention-to-treat analysis. Serum total testosterone and lipid profiles were included as investigation outcomes. Differences in reducing serum total testosterone were observed when comparing statin with placebo (Std MD= − 3.03, 95%CI − 5.85 ~ − 0.22, P=0.03) or statin + metformin with metformin (Std MD=− 1.07, 95%CI: − 2.06~ − 0.07, P=0.04). Heterogeneities were detected in both comparisons (I2=96% and 88% respectively). Meanwhile, statin was more effective than placebo in reducing LDL (WMD=− 0.87, 95%CI − 1.18~ − 0.55, P<0.0001), TC (WMD=− 1.23 95%CI − 1.35~ − 1.11, P<0.00001), TG (WMD= − 0.50, 95%CI − 0.73~ − 0.27, P<0.00001); and statin + metformin was more effective than metformin in lowering LDL (WMD= − 0.84, 95%CI: − 1.33 ~ − 0.354, P=0.0009), TC (WMD= − 1.28, 95%CI: − 1.47 ~ − 1.10, P<0.00001), and TG (WMD= − 0.27, 95%CI: − 0.36~ − 0.19, P<0.00001). Heterogeneities were detected during the meta-analysis. Statins can reduce the concentration of total testosterone, TC, TG and LDL. However, it cannot be concluded that statins have long-term benefit. A large-scale, randomized controlled study is needed to ascertain this uncertainty.

3 February 2022 in BMC Public Health
Verified
Journal Article
Open access
PDF file
ETElise Tan
Elise Tan
LGLan Gao
Lan Gao
JCJanice M. Collier
Janice M. Collier
FEFiona Ellery
Fiona Ellery
HDHelen M. Dewey
Helen M. Dewey
MMMarj Moodie
Marj Moodie
Background: To estimate the short term (5 years) and long term (30 years) economic burden of stroke among younger adults (18–64 years), and to calculate the loss of health-related quality of life in these individuals, in Australia. Methods: A Markov microsimulation model was built to simulate incidence of stroke among younger adults in Australia. Younger adults with stroke commenced in the model via health states defined by the modified Rankin Scale at 12 months from the AVERT study (A Very Early Rehabilitation Trial), and transitioned through these health states. Costs in Australian dollars (AUD) were measured from a societal perspective for a 2018 reference year and categorised into medical, non-medical and indirect costs. Probabilistic sensitivity analyses were performed to test the robustness around the cost of illness estimates. The loss of health-related quality of life due to stroke among younger adults was calculated by determining the difference in estimated quality-adjusted life years (QALYs) between the stroke population and the general population. This was determined by multiplying the predicted remaining life years for the modelled stroke cohort and the age-matched general population, by their corresponding age-dependent utilities. Results: The economic burden of stroke among younger adults was estimated to be AUD2.0 billion over 5 years, corresponding to a mean of $149,180 per stroke patient. Over 30 years, the economic impact was AUD3.4 billion, equating to a mean of $249,780 per case. Probabilistic sensitivity analyses revealed a mean cost per patient of $153,410 in the short term, and a mean cost per patient of $273,496 in the long term. Compared to the age-matched general population, younger adults with stroke experienced a loss of 4.58 life years and 9.21 QALYs. Conclusions: The results of our study suggests high economic and health burden of stroke among younger adults and highlights the need for preventive interventions targeting this age group. Trial registration: ACTRN12606000185561, retrospectively registered.

7 February 2023 in International Journal of Stroke
Verified
Journal Article
Closed access
LGLan Gao
Lan Gao
MLMegumi Lim
Megumi Lim
DNDieu Nguyen
Dieu Nguyen
SBSteven Bowe
Steven Bowe
MMMark T MacKay
Mark T MacKay
MMMarj Moodie
Marj Moodie
Background: Despite its importance in being among the top 10 causes of childhood death, there is limited data on the incidence of stroke in children and whether this has changed over time. Aims: We performed a systematic review and meta-analysis to estimate the worldwide incidence rate of pediatric ischemic stroke, identify population differences, and assess trends in incidence. Methods: We screened three databases (Medline, Embase, and Cumulative Index of Nursing and Allied Health Literature (CINAHL)) and a Google Search was performed up to October 2021. The protocol was pre-registered: PROSPERO: CRD42021273749. Data extraction and quality assessment were independently undertaken by two reviewers. A random-effects model was used for meta-analysis using Stata SE17 to calculate the overall incidence rate. Heterogeneity was assessed using I2. Meta-regression and assessment for bias were performed. Results: Out of 4166 records identified, 39 studies were included in the qualitative synthesis and the quantitative meta-analysis. The incidence rate for all ischemic strokes varied from 0.9 to 7.9 per 100,000 person-years, with a pooled incidence of 2.09 (95% confidence interval (CI): 1.57–2.76). The pooled incidence was 1.28 (95% CI: 0.75–2.19) per 100,000 person-years for arterial ischemic stroke, and 0.56 (95% CI: 0.31–1.02) per 100,000 person-years for cerebral venous sinus thrombosis. The incidence of arterial ischemic stroke was high in neonates, less than 28 days old (18.51, 95% CI: 12.70–26.97). Significant heterogeneity was observed in the initial analyses of stroke incidence estimates, and geographical region, cohort age upper limit, length of study, study quality, and study design could not explain this. The incidence rate of childhood stroke appeared remained relatively stable over time. Conclusion: Our review provides estimates of global stroke incidence, including stroke subtypes, in children. It demonstrates a particularly high stroke incidence in neonates.