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Dive into the research topics where Lawrence So is active.

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Featured researches published by Lawrence So.


BMC Family Practice | 2007

Chinese and white Canadian satisfaction and compliance with physicians

Richard Liu; Lawrence So; Hude Quan

BackgroundPatient satisfaction has become an important indicator of primary care and healthcare system performance. Ethnic disparities in patient satisfaction and compliance with physician care have been studied in several countries. However, this issue has not received significant attention in Canada. The unique characteristics of the Canadian healthcare system and ethnic population make it worthwhile to examine this issue in this population. Therefore, we conducted a survey among Chinese and Whites in a Canadian city to determine their reported satisfaction, and perceptions of physicians.MethodsThe survey was conducted in English, Mandarin and Cantonese in 2005 among Chinese and White Canadians, 18 years of age or older, who had visited at least one physician in Canada.ResultsWe analyzed 746 Chinese and 711 Whites in the general practitioner (GP) visit group and 485 Chinese and 637 Whites in the specialist visit group. A lower proportion of Chinese compared to Whites reported that they were very satisfied or satisfied with GP (73.7% vs. 92.8%) and specialist care (75.5% vs. 85.6%) and the differences between the two groups remained after adjustment for demographic variables and chronic conditions (risk adjusted OR: 0.70, 95%CI: 0.42–1.18 for the GP visit group and OR: 0.77, 95%CI: 0.48–1.23 for the specialist visit group). A similar proportion of Chinese and Whites reported that they always followed a physicians advice (59.4% vs. 59.6% for the GP visit group and 67.2% vs. 62.8% for the specialist visit group). Non-English speaking Chinese and recent arrivals in Canada were less likely to be satisfied with GPs than Chinese born in Canada [risk adjusted OR: 0.5, 95%CI: 0.3–0.9, 0.2 and 0.1–0.7, respectively].ConclusionChinese Canadians reported lower satisfaction with physicians and perceived physicians slightly more negatively than White Canadians. Particularly, Chinese with limited English and short length of stay in Canada were less satisfied than Canadian born Chinese.


Canadian Journal of Cardiology | 2008

Characteristics of hypertensive Canadians not receiving drug therapy

Norman R.C. Campbell; Lawrence So; Ernest K. Amankwah; Hude Quan; Colleen J. Maxwell

BACKGROUND Many Canadians known to have hypertension remain untreated. To aid in the development of specific programs to improve hypertension management, the present report characterizes Canadians who indicated that they had hypertension but were not taking antihypertensive drug therapy. METHODS The 2005 Canadian Community Health Survey (cycle 3.1) was used to estimate the proportion of Canadians 20 years of age and older who reported having high blood pressure or ever being diagnosed with high blood pressure. Sociodemographic characteristics, reported health, lifestyle factors and health care resource use of those who reported taking or not taking high blood pressure medication in the previous month were described and compared. RESULTS Over one-half of hypertensive respondents 20 to 39 years of age reported no antihypertensive treatment compared with 17% and 5% among those 40 to 59 years and 60 years of age and older, respectively. In most age groups, several factors were associated with the absence of pharmacotherapy (eg, male sex, fewer health care professional consultations, perceived excellent health status and most markers of lower cardiovascular risk, with the exception of daily smoking). The proportion of young hypertensive Canadians not receiving pharmacotherapy remained consistent, regardless of the presence of cardiovascular risk factors. CONCLUSIONS Many hypertensive Canadians, particularly those who are younger than 60 years of age, are not taking antihypertensive drug therapy despite having one or more cardiovascular risks. The increased risk of no drug therapy among smokers warrants special attention.


Health Informatics Journal | 2010

Chart documentation quality and its relationship to the validity of administrative data discharge records

Lawrence So; Cynthia A. Beck; Susan E. Brien; James A. Kennedy; Thomas E. Feasby; William A. Ghali; Hude Quan

The validity of administrative data may be vulnerable to how well physicians document medical charts. The objective of this study is to determine the relationship between chart documentation quality and the validity of administrative data. The charts for patients who underwent carotid endarterectomy were re-abstracted and rated for the quality of documentation. Poorly and well-documented charts were compared by patient, physician, and hospital variables, as well as on agreement between the administrative and re-abstracted data. Of the 2061 charts reviewed, 42.6 per cent were rated well documented. The proportion of charts well documented varied from 14.6 to 87.5 per cent across 17 hospitals, but did not vary significantly by patient characteristics. The kappa statistic was generally higher for well-documented charts than for poorly documented charts, but varied across comorbidities. In conclusion, poorly documented hospital charts tend to be translated into invalid administrative data, which reduces the communication of clinical information among healthcare providers.


BMC Health Services Research | 2006

ICD-10 coding algorithms for defining comorbidities of acute myocardial infarction

Lawrence So; Dewey Evans; Hude Quan


Open Medicine | 2010

Cardiovascular risk factors in ethnic populations within Canada: results from national cross-sectional surveys.

Richard Liu; Lawrence So; Sailesh Mohan; Nadia Khan; Kathryn M. King; Hude Quan


Archive | 2008

Adaptation of AHRQ Patient Safety Indicators for Use in ICD-10 Administrative Data by an International Consortium

Hude Quan; Saskia E. Drösler; Vijaya Sundararajan; Eugene Wen; Bernard Burnand; Chantal Marie Couris; Patricia Halfon; Jean-Marie Januel; Edward Kelley; Niek Sebastian Klazinga; Jean-Christophe Luthi; Lori Moskal; Eric Pradat; Patrick S. Romano; Jennie Shepheard; Lawrence So; Lalitha Sundaresan; Linda Tournay-Lewis; Béatrice Trombert-Paviot; Greg Webster; William A. Ghali


International Journal of Public Health | 2012

Coming to Canada: the difference in health trajectories between immigrants and native-born residents

Lawrence So; Hude Quan


Open Medicine | 2012

Appropriateness of the use of intravenous immune globulin before and after the introduction of a utilization control program.

Thomas E. Feasby; Hude Quan; Michelle Tubman; David Pi; Alan Tinmouth; Lawrence So; William A. Ghali


Journal de la thérapeutique des populations et de la pharamcologie clinique | 2012

DOES CONCORDANCE BETWEEN SURVEY RESPONSES AND ADMINISTRATIVE RECORDS DIFFER BY ETHNICITY FOR PRESCRIPTION MEDICATION

Lawrence So; Steven G Morgan; Hude Quan


Revue D Epidemiologie Et De Sante Publique | 2011

Adaptation au codage CIM-10 de 15 indicateurs de la sécurité des patients proposés par l’Agence étasunienne pour la recherche et la qualité des soins de santé (AHRQ)

Jean-Marie Januel; C M Couris; Jean-Christophe Luthi; Patricia Halfon; Béatrice Trombert-Paviot; Hude Quan; S. Drosler; V. Sundararajan; E. Pradat; S. Touzet; E. Wen; J Shepheard; G. Webster; Patrick S. Romano; Lawrence So; L. Moskal; L. Tournay-Lewis; L. Sundaresan; Edward Kelley; Niek Sebastian Klazinga; William A. Ghali; C. Colin; Bernard Burnand

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Hude Quan

Alberta Health Services

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Bernard Burnand

University Hospital of Lausanne

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Edward Kelley

Agency for Healthcare Research and Quality

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