Diana Sarfati
Biographic Data
| ID | 236382 |
|---|---|
| NAME | Diana Sarfati |
| GIVEN NAMES | Diana |
| FAMILY NAME | Sarfati |
| SIGNATURE | SARFATI D |
| AFFILIATIONS | University of Otago |
| ORCID | 0000-0002-2425-4086 |
| VERIFIED | Yes |
| TOTAL WORKS | 15 |
| TOTAL CITATIONS | 20 |
| AUTHOR COUNT | 15 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2000 |
| LATEST PUBLICATION YEAR | 2020 |
| H-INDEX | 3 |
Use of Non-Cancer Medications in New Zealand Women at the Diagnosis of Primary Invasive Breast Cancer: Prevalence, Associated Factors and Effects on Survival
Non-cancer medication use at breast cancer diagnosis was common in New Zealand, more prevalent in older and disadvantaged women, and showed no effect on breast cancer-specific mortality, but a reduction in other cause mortality with the use of 2-3 drugs
A Pharmaceutical Dispensing–based Index of Mortality Risk From Long-term Conditions Performed as well as Hospital Record–based Indices
OBJECTIVE: The objective of this study was to develop and validate a mortality risk index from multimorbidity using pharmaceutical dispensing data. DESIGN: The P3 (Pharmaceutical Prescribing Profile) mortality risk index was created (development n=2,331,645) using pharmaceutical dispensing records for the last 12 months for long-term conditions. β coefficients from a Cox proportional hazards model for mortality provided component scores for 30 me…
Ascertaining patients' understandings of their condition: A Conversation Analysis of Contradictory Norms in Cancer Specialist Consultations
Patient-centred care requires patients to be active participants in decision-making in consultations. Decision-making participation requires patients to understand their condition and to be able to convey their health literacy to medical specialists they encounter. Based on conversation analysis of 18 audio-recorded consultations between cancer patients and a range of cancer care specialists, this article analyses the ways cancer specialists atte…
Cancer care decision-making and treatment consent: An observational study of patients' and clinicians' rights
This study identified ways in which patients and medical specialists negotiated decisions about cancer treatment by observing decision-making discussion in situ. Audio-recordings of cancer care consultations with 18 patients, their support people, and their medical specialists, including medical oncologists, radiation oncologists and surgeons were collected in different regions of New Zealand. Patients were followed up with interviews and special…
Urban Rural Differences in Breast Cancer in New Zealand
Many rural communities have poor access to health services due to a combination of distance from specialist services and a relative shortage of general practitioners. Our aims were to compare the characteristics of urban and rural women with breast cancer in New Zealand, to assess breast cancer-specific and all-cause survival using the Kaplan-Meier method and Cox proportional hazards model, and to assess whether the impact of rurality is differen…
Cancer Care Decision Making in Multidisciplinary Meetings
Little research has been undertaken on the actual decision-making processes in cancer care multidisciplinary meetings (MDMs). This article was based on a qualitative observational study of two regional cancer treatment centers in New Zealand. We audiorecorded 10 meetings in which 106 patient cases were discussed. Members of the meetings categorized cases in varying ways, drew on a range of sources of authority, expressed different value positions…
Dissonant roles: The experience of Māori in cancer care
Development of a Pharmacy-based Comorbidity Index for Patients With Cancer
OBJECTIVE: We aimed to develop and validate a pharmacy-based instrument to measure comorbidity among cancer patients. METHODS: Patients diagnosed with colorectal, breast, gynecologic, stomach/liver, or renal/bladder cancers were identified from the New Zealand Cancer Registry between July 2006 and June 2008 for a development cohort (n=14096) and from July 2008 to December 2009 for a validation cohort (n=11014). Nineteen conditions were identified…
The Mismeasurement of Quality by Readmission Rate: How Blunt Is too Blunt an Instrument? A Quantitative Bias Analysis
BACKGROUND: The rate of readmission is widely used as a measure of hospital quality of care, often with funding implications for outlying facilities. OBJECTIVES: This study explored the plausibility of readmission as a proxy for health care quality with quantitative bias analysis and the application of a structural Directed Acyclic Graph framework. It applies this paradigm to observed ethnic differences in the odds of readmission in a sample of N…
P2-266 Relative vs cancer-specific survival: Assumptions and potential bias
Introduction Cancer-specific and relative survival analyses are the two main methods of estimating net cancer survival. Bias through misclassification of cause of death is well recognised for cancer-specific survival, but to date there has been no systematic examination of the potential bias from using an external comparison group for relative survival. This latter bias may be particularly important for smoking-related cancers where the expected …
P2-267 The unusual epidemiology of testicular cancer in New Zealand
Introduction Testicular cancer (TC) is increasing rapidly in developed countries. Drivers of these trends remain obscure. Ethnic differences in TC incidence within countries are often marked; white populations consistently having the highest rates. Many studies have found that high socioeconomic status is a risk factor for TC. There is some evidence that epidemiological patterns of TC may differ in New Zealand. This study investigates the ethnic …
P1-52 The implications of using different methods to measure ethnicity in a cohort study
Introduction Maori, the indigenous population of New Zealand, have the right to good health, healthy conditions and high quality epidemiological data. Consistent, comprehensive ethnicity data are crucial for appropriate representation of Maori health status and in order to monitor governmental progress towards equity in health. Maori have been undercounted in health datasets in the past and different methods of adjusting for this undercount have …
Survival disparities in Indigenous and non-Indigenous New Zealanders with colon cancer: The role of patient comorbidity, treatment and health service factors
BACKGROUND: Ethnic disparities in cancer survival have been documented in many populations and cancer types. The causes of these inequalities are not well understood but may include disease and patient characteristics, treatment differences and health service factors. Survival was compared in a cohort of Maori (Indigenous) and non-Maori New Zealanders with colon cancer, and the contribution of demographics, disease characteristics, patient comorb…
Ethnicity and cancer treatment in New Zealand: Do Maori patients get a worse deal
buffers. More local patterns of area effect are further revealed, eg more mixed land use is associated with higher levels of walking in some but not all areas of the city, suggesting that the significance and magnitude of associations between built environment characteristics and walking are not the same across space. Discussion: Application and findings of the three approaches lead to distinct yet complementary conclusions about the environmenta…
A challenge to the cross-cultural validity of the SF-36 health survey: Factor structure in Māori, Pacific and New Zealand European ethnic groups
A challenge to the cross-cultural validity of the SF-36 health survey: Factor structure in Māori, Pacific and New Zealand European ethnic groups
Survival disparities in Indigenous and non-Indigenous New Zealanders with colon cancer: The role of patient comorbidity, treatment and health service factors
BACKGROUND: Ethnic disparities in cancer survival have been documented in many populations and cancer types. The causes of these inequalities are not well understood but may include disease and patient characteristics, treatment differences and health service factors. Survival was compared in a cohort of Maori (Indigenous) and non-Maori New Zealanders with colon cancer, and the contribution of demographics, disease characteristics, patient comorb…
Dissonant roles: The experience of Māori in cancer care
Cancer care decision-making and treatment consent: An observational study of patients' and clinicians' rights
This study identified ways in which patients and medical specialists negotiated decisions about cancer treatment by observing decision-making discussion in situ. Audio-recordings of cancer care consultations with 18 patients, their support people, and their medical specialists, including medical oncologists, radiation oncologists and surgeons were collected in different regions of New Zealand. Patients were followed up with interviews and special…
Ascertaining patients' understandings of their condition: A Conversation Analysis of Contradictory Norms in Cancer Specialist Consultations
Patient-centred care requires patients to be active participants in decision-making in consultations. Decision-making participation requires patients to understand their condition and to be able to convey their health literacy to medical specialists they encounter. Based on conversation analysis of 18 audio-recorded consultations between cancer patients and a range of cancer care specialists, this article analyses the ways cancer specialists atte…
A challenge to the cross-cultural validity of the SF-36 health survey: Factor structure in Māori, Pacific and New Zealand European ethnic groups
Ethnicity and cancer treatment in New Zealand: Do Maori patients get a worse deal
buffers. More local patterns of area effect are further revealed, eg more mixed land use is associated with higher levels of walking in some but not all areas of the city, suggesting that the significance and magnitude of associations between built environment characteristics and walking are not the same across space. Discussion: Application and findings of the three approaches lead to distinct yet complementary conclusions about the environmenta…
Survival disparities in Indigenous and non-Indigenous New Zealanders with colon cancer: The role of patient comorbidity, treatment and health service factors
BACKGROUND: Ethnic disparities in cancer survival have been documented in many populations and cancer types. The causes of these inequalities are not well understood but may include disease and patient characteristics, treatment differences and health service factors. Survival was compared in a cohort of Maori (Indigenous) and non-Maori New Zealanders with colon cancer, and the contribution of demographics, disease characteristics, patient comorb…
P2-266 Relative vs cancer-specific survival: Assumptions and potential bias
Introduction Cancer-specific and relative survival analyses are the two main methods of estimating net cancer survival. Bias through misclassification of cause of death is well recognised for cancer-specific survival, but to date there has been no systematic examination of the potential bias from using an external comparison group for relative survival. This latter bias may be particularly important for smoking-related cancers where the expected …
P2-267 The unusual epidemiology of testicular cancer in New Zealand
Introduction Testicular cancer (TC) is increasing rapidly in developed countries. Drivers of these trends remain obscure. Ethnic differences in TC incidence within countries are often marked; white populations consistently having the highest rates. Many studies have found that high socioeconomic status is a risk factor for TC. There is some evidence that epidemiological patterns of TC may differ in New Zealand. This study investigates the ethnic …
P1-52 The implications of using different methods to measure ethnicity in a cohort study
Introduction Maori, the indigenous population of New Zealand, have the right to good health, healthy conditions and high quality epidemiological data. Consistent, comprehensive ethnicity data are crucial for appropriate representation of Maori health status and in order to monitor governmental progress towards equity in health. Maori have been undercounted in health datasets in the past and different methods of adjusting for this undercount have …
The Mismeasurement of Quality by Readmission Rate: How Blunt Is too Blunt an Instrument? A Quantitative Bias Analysis
BACKGROUND: The rate of readmission is widely used as a measure of hospital quality of care, often with funding implications for outlying facilities. OBJECTIVES: This study explored the plausibility of readmission as a proxy for health care quality with quantitative bias analysis and the application of a structural Directed Acyclic Graph framework. It applies this paradigm to observed ethnic differences in the odds of readmission in a sample of N…
Development of a Pharmacy-based Comorbidity Index for Patients With Cancer
OBJECTIVE: We aimed to develop and validate a pharmacy-based instrument to measure comorbidity among cancer patients. METHODS: Patients diagnosed with colorectal, breast, gynecologic, stomach/liver, or renal/bladder cancers were identified from the New Zealand Cancer Registry between July 2006 and June 2008 for a development cohort (n=14096) and from July 2008 to December 2009 for a validation cohort (n=11014). Nineteen conditions were identified…
Cancer Care Decision Making in Multidisciplinary Meetings
Little research has been undertaken on the actual decision-making processes in cancer care multidisciplinary meetings (MDMs). This article was based on a qualitative observational study of two regional cancer treatment centers in New Zealand. We audiorecorded 10 meetings in which 106 patient cases were discussed. Members of the meetings categorized cases in varying ways, drew on a range of sources of authority, expressed different value positions…
Dissonant roles: The experience of Māori in cancer care
Urban Rural Differences in Breast Cancer in New Zealand
Many rural communities have poor access to health services due to a combination of distance from specialist services and a relative shortage of general practitioners. Our aims were to compare the characteristics of urban and rural women with breast cancer in New Zealand, to assess breast cancer-specific and all-cause survival using the Kaplan-Meier method and Cox proportional hazards model, and to assess whether the impact of rurality is differen…
Ascertaining patients' understandings of their condition: A Conversation Analysis of Contradictory Norms in Cancer Specialist Consultations
Patient-centred care requires patients to be active participants in decision-making in consultations. Decision-making participation requires patients to understand their condition and to be able to convey their health literacy to medical specialists they encounter. Based on conversation analysis of 18 audio-recorded consultations between cancer patients and a range of cancer care specialists, this article analyses the ways cancer specialists atte…
Cancer care decision-making and treatment consent: An observational study of patients' and clinicians' rights
This study identified ways in which patients and medical specialists negotiated decisions about cancer treatment by observing decision-making discussion in situ. Audio-recordings of cancer care consultations with 18 patients, their support people, and their medical specialists, including medical oncologists, radiation oncologists and surgeons were collected in different regions of New Zealand. Patients were followed up with interviews and special…
Use of Non-Cancer Medications in New Zealand Women at the Diagnosis of Primary Invasive Breast Cancer: Prevalence, Associated Factors and Effects on Survival
Non-cancer medication use at breast cancer diagnosis was common in New Zealand, more prevalent in older and disadvantaged women, and showed no effect on breast cancer-specific mortality, but a reduction in other cause mortality with the use of 2-3 drugs
A Pharmaceutical Dispensing–based Index of Mortality Risk From Long-term Conditions Performed as well as Hospital Record–based Indices
OBJECTIVE: The objective of this study was to develop and validate a mortality risk index from multimorbidity using pharmaceutical dispensing data. DESIGN: The P3 (Pharmaceutical Prescribing Profile) mortality risk index was created (development n=2,331,645) using pharmaceutical dispensing records for the last 12 months for long-term conditions. β coefficients from a Cox proportional hazards model for mortality provided component scores for 30 me…
Medicine (14 works) · Demography (9 works) · Internal Medicine (9 works) · Cancer (7 works) · Internal Medicine (7 works) · Environmental health (6 works) · Ethnic group (6 works) · Population (5 works) · Psychology (5 works) · Cohort (4 works)