Publications by authors named "Chunhuan Lao"

Aim: Systemic sclerosis is associated with significant morbidity and mortality. It remains unclear from the literature if there are differences between the subtypes of systemic sclerosis and the rate of hospitalization. Our study investigates the rates of all types of hospitalizations between limited and diffuse cutaneous systemic sclerosis.

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Background: Cancer and diabetes are increasingly prevalent, and it is not unusual for an individual to have both conditions at the same time. This occurrence has significant ramifications to the person, the clinical team providing care, and the broader health system.

Research Design And Methods: For the period 2006-2019, we used national-level diabetes (Virtual Diabetes Register) and cancer (New Zealand Cancer Registry) data on nearly five million individuals over 44 million person-years of follow-up.

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Aim: This research examines the characteristics and survival outcomes of patients receiving a lung cancer diagnosis after attending the emergency department (ED) of Waikato hospitals in New Zealand.

Methods: This retrospective study was based on a comprehensive database of Waikato patients recorded on the Midland Lung Cancer Register from 2011 to 2021. We compared the characteristics of patients with and without emergency presentations within 14 days before their lung cancer diagnosis.

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Objectives: This study aims to explore the treatment pattern of systemic lupus erythematosus (SLE) in Aotearoa/New Zealand.

Methods: SLE patients were linked to the pharmaceutical dispensing data. The use of publicly funded anti-malarials, immunomodulators, biologics, glucocorticoids and bisphosphonates were compared by gender, ethnicity, age group, socioeconomic status and year of SLE identification.

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Background: This study aims to examine the treatment patterns of end-stage kidney disease (ESKD) among SLE patients and to compare the outcome of hemodialysis (HD) and peritoneal dialysis (PD).

Methods: SLE patients identified from the national administration dataset in 2005-2021 were linked to the Australia and New Zealand Dialysis and Transplant Registry to identify ESKD cases. The adjusted odds ratio of having PD instead of HD as the first treatment for ESKD for Asian, Māori, and Pacific compared with European/others was estimated with the logistic regression model.

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Objectives: The objective of this study is to investigate the influence of diabetes on breast cancer-specific survival among women with breast cancer in Aotearoa/New Zealand.

Methods: This study included women diagnosed with invasive breast cancer between 2005 and 2020, with their information documented in the Te Rēhita Mate Ūtaetae-Breast Cancer Foundation National Register. Breast cancer survival curves for women with diabetes and those without diabetes were generated using the Kaplan-Meier method.

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Aims: To study in-patient mortality before and after the introduction of a whole-of-system sepsis quality improvement programme at a tertiary hospital in New Zealand.

Methods: The "Raise the Flag" sepsis quality improvement programme was launched in 2018. Discharge coding data were used to identify sepsis cases between May 2015 and July 2021.

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Background: Cancer is a major cause of premature death and inequity, and global case numbers are rapidly expanding. This study projects future cancer numbers and incidence rates in Aotearoa New Zealand.

Methods: Age-period-cohort modelling was applied to 25-years of national data to project cancer cases and incidence trends from 2020 to 2044.

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Aim: To investigate the treatment of patients with advanced-stage non-small cell lung cancer (NSCLC) over a 20-year period in a single Aotearoa New Zealand centre with reference to the use of systemic anti-cancer chemotherapy (SACT) and to explore ethnic disparities in treatment and outcomes.

Method: Using a SACT database maintained by the Oncology Department at Waikato Hospital, Hamilton, Aotearoa New Zealand from 2000 to 2021 we derived summary statistics for patient factors and SACT regimens by ethnicity (Māori and non-Māori). We investigated Kaplan-Meier all-cause survival by ethnicity and SACT.

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Article Synopsis
  • This study investigates the trends and severity of diabetic ketoacidosis (DKA) in Waikato, New Zealand, from 2000 to 2019, revealing a dramatic increase in DKA admissions, particularly among Māori and women.
  • The research analyzed patient data to categorize DKA cases by type, ethnicity, social deprivation, ICU admission, and hospital stay duration, finding that two-thirds of admissions were recurrent DKA events.
  • Key findings highlight the urgent need to address healthcare inequities and improve mental health support for patients, especially for vulnerable groups like youth and indigenous populations dealing with diabetes.
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Objectives: This study aims to assess the mortality of systemic lupus erythematosus (SLE) patients and examine whether there are variations by subgroup.

Methods: SLE patients from 2005 to 2021 were identified from the national administrative datasets. The underlying causes of death were examined.

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Background: Māori have three times the mortality from lung cancer compared with non-Māori. The Te Manawa Taki region has a population of 900 000, of whom 30% are Māori. We have little understanding of the factors associated with developing and diagnosing lung cancer and ethnic differences in these characteristics.

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This study aims to examine the prevalence and outcomes of end-stage kidney disease (ESKD) among systemic lupus erythematosus (SLE) patients. SLE patients identified from the national administrative datasets were linked to the Australia and New Zealand Dialysis and Transplant Registry (ANZDATA) to identify the ESKD cases. Period prevalence of ESKD among SLE patients was calculated.

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Objectives: This study aims to provide updated data on the incidence and prevalence of systemic lupus erythematosus (SLE) in New Zealand and to examine the difference between ethnic groups.

Methods: We identified the SLE cases from the national administrative datasets. The date of first identification of SLE was the earliest date of a related inpatient event or the earliest date of a related outpatient event.

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Purpose: The co-occurrence of diabetes and cancer is becoming increasingly common, and this is likely to compound existing inequities in outcomes from both conditions within populations.

Methods: In this study, we investigate the co-occurrence of cancer and diabetes by ethnic groups in New Zealand. National-level diabetes and cancer data on nearly five million individuals over 44 million person-years were used to describe the rate of cancer in a national prevalent cohort of peoples with diabetes versus those without diabetes, by ethnic group (Māori, Pacific, South Asian, Other Asian, and European peoples).

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Purposes: This study aims to examine whether diabetes has an impact on the use of surgery and adjuvant radiotherapy in treating women with localised breast cancer.

Methods: Women diagnosed with stage I-III breast cancer between 2005 and 2020 were identified from Te Rēhita Mate Ūtaetae-Breast Cancer Foundation New Zealand National Register, with diabetes status determined using New Zealand's Virtual Diabetes Register. The cancer treatments examined included breast conserving surgery (BCS), mastectomy, breast reconstruction after mastectomy, and adjuvant radiotherapy after BCS.

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The number of new cases of cancer is increasing each year, and rates of diabetes mellitus are also increasing dramatically over time. It is not an unusual occurrence for an individual to have both cancer and diabetes at the same time, given they are both individually common, and that one condition can increase the risk of the other. In this manuscript, we use national-level diabetes (Virtual Diabetes Register) and cancer (New Zealand Cancer Registry) data on nearly five million individuals over 44 million person-years of follow-up to examine the occurrence of cancer amongst a national prevalent cohort of patients with diabetes.

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Purpose: This study aims to examine the association of diabetes and breast cancer characteristics at diagnosis in Aotearoa/New Zealand.

Methods: Patients diagnosed with invasive breast cancer between 2005 and 2020 were identified from the National Breast Cancer Register. Logistic regression modeling was used to estimate the adjusted odds ratio (OR) of having stage III-IV cancer and the OR of having stage IV cancer for women with diabetes compared to those without diabetes.

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Aim: To study the economic impact of systemic sclerosis (SSc) in the patients attending Rheumatology clinics in Waikato Hospital, Hamilton, New Zealand (NZ). There is currently no bottom-up data on this in NZ.

Methods: This is a retrospective cross-sectional questionnaire-based study, including demographics, costs related to SSc, quality of life measures including the short-form survey (SF-36) the scleroderma health assessment questionnaire-visual analog scale (SHAQ-VAS), the NZ index of Deprivation (NZiDep), and work limitations questionnaire (WLQ).

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Backgrounds: The pressure to the healthcare system for providing ongoing monitoring and treatment for breast cancer survivors is increasing. This study aims to identify the factors that affect the public healthcare costs of stage I-III breast cancer and stage IV cancer in New Zealand.

Methods: We identified women diagnosed with invasive breast cancer between July 1, 2010 and June 30, 2018 and who received services in a public hospital.

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Background: Breast cancer requires the greatest expenditure among all cancer types, and the costs vary by cancer stage and biomarker status.

Objective: This study aimed to examine the differences in public healthcare costs of breast cancer in New Zealand by stage and subtype.

Method: This study included patients diagnosed with invasive breast cancer between 1 July 2010 and 30 June 2018 and receiving services in public hospitals.

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Background: New Zealand has high rates of colorectal cancer (CRC) but poor outcomes. Most patients with CRC are diagnosed following referral from general practice, where a general practitioner (GP) assesses symptoms according to national guidelines. All referred patients are then re-prioritised by the hospital system.

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Aims: To describe the systemic treatments in patients with de novo metastatic breast cancer (dnMBC, initial metastatic diagnosis) and recurrent metastatic breast cancer (rMBC).

Methods: Women diagnosed with dnMBC and rMBC in 2010-2017 were identified. Adjusted odds ratios of receiving systemic treatments were estimated by logistic regression model.

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Aim: This study aims to estimate the mean costs of breast cancer in New Zealand's public health system.

Method: This study included women diagnosed with invasive breast cancer between 1 July 2010 and 30 June 2018 who received services in public hospitals. These patients were identified from the National Breast Cancer Register or the New Zealand Cancer Registry and linked with the Pharmaceutical Collection, National Minimum Dataset, National Non-Admitted Patient Collection and Mortality Collection.

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Objective: Menopausal status at diagnosis is an important factor for the management of breast cancer in younger women, and may affect the prognosis for these women. We aim to examine the association of menopausal status and risk of metastatic relapse for stage I-III breast cancer.

Methods: We included women diagnosed with stage I-III breast cancer at 45 to 55 years in the Auckland and Waikato Breast Cancer Registers.

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