Prevalence of chronic conditions – Coronary Heart Disease

IPH has estimated and forecast clinical diagnosis rates of CHD (heart attack and/or angina) among adults for the years 2010, 2015 and 2020. In the Republic of Ireland, the data are based on the Survey of Lifestyle, Attitudes and Nutrition (SLÁN) 2007 . The data describe the number of people who report that they have experienced doctor-diagnosed heart attack and/or angina in the previous 12 months (annual clinical diagnosis). Data is available by age and sex for each Local Health Office of the Health Service Executive (HSE) in the Republic of Ireland. In Northern Ireland, the data are based on the Health and Social Wellbeing Survey 2005/06 . The data describe the number of people who report that they have experienced doctor-diagnosed heart attack and/or angina at any time in the past (lifetime clinical diagnosis). Data are available by age and sex for each Local Government District in Northern Ireland. Clinical diagnosis rates in the Republic of Ireland relate to the previous 12 months and are not directly comparable with clinical diagnosis rates in Northern Ireland which relate to anytime in the past. The IPH estimated prevalence per cents may be marginally different to estimated prevalence per cents taken directly from the reference study. There are two reasons for this: 1) The IPH prevalence estimates relate to 2010 while the reference studies relate to earlier years (Northern Ireland Health and Social Wellbeing Survey 2005/06, Survey of Lifestyle, Attitudes and Nutrition 2007, Understanding Society 2009). Although we assume that the risk of the condition in the risk groups do not change over time, the distribution of the number of people in the risk groups in the population changes over time (eg the population ages).  This new distribution of the risk groups in the population means that the risk of the condition is weighted differently to the reference study and this results in a different overall prevalence estimate. 2) The IPH prevalence estimates are based on a statistical model of the reference study. The model includes a number of explanatory variables to predict the risk of the condition. Therefore the model does not include records from the reference study that are missing data on these explanatory variables. A prevalence estimate for a condition taken directly from the reference study would include these records.

Simple steps to a healthy heart

The number of deaths from coronary heart disease in Northern Ireland has dropped significantly, according to recent figures. However, the Public Health Agency is urging everyone to take steps to protect their heart and reduce their chances of developing the disease during National Heart Month (February).Despite the number of deaths dropping significantly in recent years, coronary heart disease is still the number one killer across the country. Over 2,200 people died in Northern Ireland from coronary heart disease in 2010 compared to just over 2,300 people in 2009 - an overall reduction of 100 province-wide. The latest figure reveals the positive downward trend is continuing - in 2008, there were 2,410 deaths, 2,493 in 2007 and 2,554 in 2006, while in 1979 there were nearly 5,000 deaths. Throughout National Heart Month in February, the PHA is calling for people to follow a number of steps in a bid to reduce their chances of developing the disease.Smoking is a major risk factor and, the more cigarettes you smoke, the higher the risk, according to Dr Christine McMaster, Consultant in Public Health Medicine, with responsibility for cardiovascular disease in the PHA."The reduction in smoking over the past number of years through public education, stop smoking programmes and smoke free legislation has had a major impact on reducing deaths from heart disease. However, 24% of the population in Northern Ireland still smoke, putting them at risk of developing the disease."People who suffer from high blood pressure also run an increased risk of developing coronary heart disease. High blood pressure is a silent, but treatable condition. In order to minimise the risk, I would urge everyone over the age of 45 to have their blood pressure measured every five years by their GP," said Dr McMaster.Simple lifestyle changes will also reduce the risk of heart disease, including eating at least five servings of fruit and vegetables a day, avoiding saturated fats, limiting alcohol intake and taking at least 30 minutes of exercise a day, five days a week.Dr McMaster described the reduction in deaths from coronary heart disease over the past few years as "a big success story". "It shows that people can take very positive steps to reduce their risk of heart disease by getting their blood pressure checked and adopting a healthier lifestyle; in particular by not smoking," he added. "The message is clear during National Heart Month - you only have one heart and you can take steps to keep it healthy."