title: Does the Prevalence of Dyslipidemias Differ between Newfoundland and the Rest of Canada? Findings from the Electronic Medical Records of the Canadian Primary Care Sentinel Surveillance Network.
abstract: BACKGROUND
  Newfoundland and Labrador (NL) has the highest prevalence of cardiovascular disease (CVD) in Canada. Dyslipidemia is a risk factor for CVD. This study compares the prevalence of dyslipidemia in the NL population with the rest of Canada.
  
  
  METHODS
  A cross-sectional study, using data from the Canadian Primary Care Sentinel Surveillance Network (CPCSSN), was undertaken. The study population included adults, excluding pregnant women, aged 20 years and older. Canadian guidelines were used for classifying dyslipidemia. Univariate and multivariate analyses were conducted to compare the lipid levels and prevalence of dyslipidemia between NL and the rest of Canada.
  
  
  RESULTS
  About 128,825 individuals (NL: 7,772; rest of Canada: 121,053) were identified with a mean age of 59 years (55% females). Mean levels of total cholesterol (4.96 vs. 4.93, p = 0.03), low-density lipoprotein (LDL) (3.00 vs. 2.90 mmol/L, p < 0.0001), triglyceride (1.47 vs. 1.41 mmol/L, p < 0.0001), and high-density lipoprotein (HDL) (1.29 vs. 1.39 mmol/L, p < 0.0001) were significantly different in NL compared to the rest of Canada. Dyslipidemias of LDL (29 vs. 25% p < 0.0001), HDL (38 vs. 27%, p < 0.0001), and triglyceride (29 vs. 26%, p < 0.0001) were significantly more common in NL. After adjustment for confounding variables, NL inhabitants were more likely to have dyslipidemia of total cholesterol (OR: 1.16, 95% CI: 1.10-1.23, p < 0.0001), HDL (OR: 1.52, 95% CI: 1.44-1.60, p < 0.0001), LDL (OR: 1.38, 95% CI: 1.30-1.46, p < 0.0001), and ratio (OR: 1.53, 95% CI: 1.42-1.60, p < 0.0001).
  
  
  CONCLUSIONS
  The NL population has a significantly higher rate of dyslipidemia compared to the rest of Canada, and the mean levels of all lipid components are worse in NL. Distinct cultural and genetic features of the NL population may explain this, accounting for a higher rate of CVD in NL.
authors.affiliation: Memorial University of Newfoundland (MUN) , St. John's, NF , Canada.
authors.forename: Shabnam
authors.initials: S
authors.lastname: Asghari
authors.affiliation: Memorial University of Newfoundland (MUN) , St. John's, NF , Canada.
authors.forename: Erfan
authors.initials: E
authors.lastname: Aref-Eshghi
authors.affiliation: Memorial University of Newfoundland (MUN) , St. John's, NF , Canada.
authors.forename: Oliver
authors.initials: O
authors.lastname: Hurley
authors.affiliation: Memorial University of Newfoundland (MUN) , St. John's, NF , Canada.
authors.forename: Marshall
authors.initials: M
authors.lastname: Godwin
authors.affiliation: Memorial University of Newfoundland (MUN) , St. John's, NF , Canada.
authors.forename: Pauline
authors.initials: P
authors.lastname: Duke
authors.affiliation: University of Calgary , Calgary, AB , Canada.
authors.forename: Tyler
authors.initials: T
authors.lastname: Williamson
authors.affiliation: University of Ottawa , Ottawa, ON , Canada.
authors.forename: Masoud
authors.initials: M
authors.lastname: Mahdavian
keywords: Canada; Canadian Primary Care Sentinel Surveillance Network; Newfoundland; dyslipidemia; lipid profile; prevalence