Management of dyslipidaemia and hypertension in patients with rheumatoid arthritis in 19 countries
Authors: Rollefstad S , Ikdahl E , Sexton J , Kitas G.D , Van Riel P , Crowson C.S , Graham I , Semb A.G 
Published: November 2020

Abstract

Background/Introduction
The realisation that subjects with rheumatoid arthritis (RA) are at increased risk of cardiovascular disease (CVD) has led to a growing interest in risk factor control in such people, but whether this has influenced the management of dyslipidaemia and hypertension (HT) is uncertain.

Purpose
To describe differences in lipid and blood pressure (BP) levels among patients with RA from five world regions. Furthermore, to evaluate attainment of guideline recommended targets for lipid lowering and antihypertensive treatment.

Methods
The SUrvey of CVD Risk Factors in patients with RA (SURF-RA) was conducted at 53 centres in 19 countries from 2014 to 2019. Data including demographics, RA disease characteristics, CVD comorbidity, risk factors and use of preventive treatment was collected. HT was defined as self-reported HT, and/or measured BP &gt;140/90 mmHg, and/or use of anti HT medication (a-HT). The treatment goal of a-HT was BP &lt;140/90 mmHg. The 10-year risk of a fatal CVD event was calculated by the European CVD risk calculator, the Systematic COronary Risk Evaluation (SCORE), and was thereafter multiplied with 1.5 as recommended by the European League Against Rheumatism. Patients were classified in a high or very high CVD risk group according to the 2012 European Society of Cardiology guidelines, with low density lipoprotein cholesterol (LDL-c) goal at &lt;2.6 and &lt;1.8 mmol/L, respectively.

Results
In total, 14503 RA patients were included. The mean age was 59.8±13.6 years, most of whom (74%) were female. Nearly 2/3 of the patients were hypertensive. Use of a-HT in the total population differed substantially between the cohorts with limited use in West Europe and Latin America (17.4% and 24.8%), in contrast to North America and East Europe (46.8% and 57.0%). On average, half of those with HT were at the recommended BP goal. The lowest BP goal attainment was seen in Asia, West and East Europe (40.8–43.1%), and the highest in North America (63.5%). Overall 51.5% had an indication for lipid lowering therapy (LLT), and of these only 43.5% were taking LLT. Only 34.0% of patients with an indication for LLT were at recommended LDL-c goals. The proportion of RA patients on target for LDL-c varied greatly between regions, from 23.1% in East Europe to 51.0% in North America. The LDL-c goal attainment was higher in RA patients at high risk (45.1%) compared to those at very high risk of CVD (18.0%).

Conclusion(s)
This large international survey on RA patients revealed considerable geographical differences in CVD preventive treatment. Only one half of subjects were at blood pressure goals, and achievement of lipid goals was even poorer at one third of those eligible for treatment, which is lower than what is reported for subjects with coronary heart disease. We conclude that there is a substantial need for improvement in CVD preventive measures in RA patients.

Funding Acknowledgement
Type of funding source: Private grant(s) and/or Sponsorship. Main funding source(s): Unrestricted research collaboration with Lilly