MATERIAL AND METHODS: A questionnaire based on the study aims and previous literature was developed by the authors and mailed to all currently registered GPs in private clinics in Penang. Survey responses were analysed using SSPS version 21.
RESULTS: From a total of 386 questionnaires distributed, 112 (29%) were returned. Half of the respondents were unaware of the existence of any CPG for depression. One quarter reported not managing depression at all, while one third used anxiolytic monotherapy in moderate-severe depression. Almost 75 % of respondents reported making referrals to specialist psychiatric services for moderate-severe depression. Time constraints, patient non-adherence and a lack of depression management skills were perceived as the main barriers to depression care.
CONCLUSIONS: Our findings highlight the need to engage privately practising primary care physicians in Malaysia to improve their skills in the management of depression. Future revisions of the Malaysian Depression CPG should directly involve more GPs from private practices at the planning, development and implementation stages, in order to increase its impact.
DESIGN: Retrospective study SETTING: A primary care clinic in a university hospital in Malaysia.
PARTICIPANTS: Random sampling of 1403 patients aged 30 years and above without any CV event at baseline.
OUTCOMES MEASURES: The effect of the number of BP measurement for calculation of long-term visit-to-visit BPV in predicting 10-year CV risk. CV events were defined as fatal and non-fatal coronary heart disease, fatal and non-fatal stroke, heart failure and peripheral vascular disease.
RESULTS: The mean 10-year SD of systolic blood pressure (SBP) for this cohort was 13.8±3.5 mm Hg. The intraclass correlation coefficient (ICC) for the SD of SBP based on the first eight and second eight measurements was 0.38 (p<0.001). In a primary care setting, visit-to-visit BPV (SD of SBP calculated from 20 BP measurements) was significantly associated with CV events (adjusted OR 1.07, 95% CI 1.02 to 1.13, p=0.009). Using SD of SBP from 20 measurement as reference, SD of SBP from 6 measurements (median time 1.75 years) has high reliability (ICC 0.74, p<0.001), with a mean difference of 0.6 mm Hg. Hence, a minimum of six BP measurements is needed for reliably estimating intraindividual BPV for CV outcome prediction.
CONCLUSION: Long-term visit-to-visit BPV is reproducible in clinical practice. We suggest a minimum of six BP measurements for calculation of intraindividual visit-to-visit BPV. The number and duration of BP readings to derive BPV should be taken into consideration in predicting long-term CV risk.