Obesity and Cardiovascular Disease (Update 2004) (Applicable to Canadians aged 20-60 years)
Obesity is a chronic condition that is multi-factorial in origin, complex to treat, and is a major contributor to heart disease, type II diabetes, hypertension, stroke and some cancers. Due to the magnitude of the impact that obesity has on heart disease and stroke, and to the clustering of risk factors for cardiovascular disease that are often found in the obese patient, obesity is recognized as a major risk factor for cardiovascular disease.
The impact of obesity points to the importance of prevention through healthy behaviours including increased physical activity and a healthy nutritional diet beginning early in life, and continuing through all stages of life. Solutions require comprehensive approaches that are both education and environment based, and that target and assist individuals, the family, and communities to engage in healthy lifestyle patterns and behaviours. Solutions also require ongoing research to develop and evaluate comprehensive approaches to obesity prevention, management and treatment, and surveillance data that measures and tracks obesity and its impact in Canada.
The World Health Organization defines obesity as a condition of excessive body fat accumulation to an extent that health may be compromised.
Body Mass Index (BMI) is a widely accepted parameter used to distinguish between obese and non-obese adults aged 20 to 60 years and thus provides information about the subsequent risk of cardiovascular disease.
BMI is calculated by dividing the weight (in kilograms) by the square of the height (in metres).
BMI = weight (in kilograms)
height (in metres) * height (in metres)
A BMI equal to or greater than 30 kg/m2 is classified as obese, while a BMI in the range of 25 to 29.9 kg/m2 is classified as overweight.
Waist circumference (WC) provides an independent prediction of health risks over and above BMI. Increased waist (abdominal) circumference is associated with increased risk of cardiovascular disease, dyslipidemia, type II diabetes and hypertension. As waist circumference increases above 102 cm for men and 88 cm for women, the risks of health-related illnesses increase.
Populations at Increased Risk
Obese individuals with diabetes, hypertension, or dyslipidemias or who are physically inactive are at increased risk of cardiovascular disease, compared to individuals without these conditions.
A BMI between 25 and 29.9 kg/m2 (overweight) is associated with elevated risk of cardiovascular disease, type 2 diabetes, hypertension and dyslipidemia.
Weight gain during young adult life may be one of the most important determinants of future development of cardiovascular risk factors and cardiovascular disease. Adults who gain weight have increased risk of coronary heart disease compared to those with stable weight. Weight gain during adult life may contribute to future development of ischemic heart disease regardless of initial body weight (obese or non-obese).
Canadians of Aboriginal, Chinese, and South Asian (from India, Pakistan, Bangladesh, and Sri Lanka) descent have higher rates of obesity-related chronic diseases (for example diabetes, hypertension and cardiovascular disease).
Individuals with lower socio-economic status have higher rates of obesity than those with higher socio-economic status.
Promotion of Healthy Weights
In April 2002, the Public Health Approaches to the Prevention of Obesity (PHAPO) Working Group of the International Obesity Task Force (IOTF) identified that a comprehensive approach to obesity prevention should:
Address both dietary habits and physical activity patterns of the population
Address both societal and individual level factors
Address both immediate and distant causes
Have multiple focal points and levels of intervention (i.e. at national, regional, community and individual levels);
Include both policies and programs; and
Build links between sectors that may otherwise be viewed as independent.
Research is needed to:
Develop a standard definition and a standard measurement technique for determining obesity in children.
Develop obesity measures for older, ethnic and gender specific populations.
Identify and develop effective primary prevention methods for individuals, families and communities to reduce the prevalence of obesity in all stages of life.
Improve awareness and knowledge about the health effects of obesity and healthy living.
Develop effective primary prevention measures and strategies that are therapeutic, secondary and tertiary in nature.
Identify and track rates of obesity and overweight in Canada.
Assess the effectiveness of obesity prevention and treatment initiatives.
Identify and implement the most effective primary prevention strategies for ethnic populations.
Develop and implement effective healthy public policy for the prevention, treatment, and management of obesity.
Further, the surveillance of obese and overweight Canadians is necessary in order to assess the effectiveness of prevention and treatment initiatives. It is only through the combined action and resources of governments, non-governmental organizations, non-profit and private sectors to develop and implement a comprehensive approach to curb the growing trend of obesity in Canada.
Auditing Physician Billings
The CMA has developed a set of guiding principles to assist in the formation and modification of provincial/territorial billing audit processes. These principles will ensure that billing audit systems are fair, transparent, effective and timely, and that they uphold their original objectives of ensuring the accountability of public expenditures and educating physicians on appropriate billing practices.
As payments to physicians are made through public monies, the integrity of the payment system is validated through physician billing audits and reviews. Audits and reviews are usually prompted by: billings that appear to be outside of the “norm,” patient complaints, physician complaints or a “focus” on a particular service/area of practice/group of physicians. Each province/territory is responsible for and has in place particular processes and procedures to review physician billings.
Billing audits can be stressful events that, regardless of the audit outcome, have had adverse effects on a physician’s health and practice. Although changes over the years in billing audit practices have occurred, they have not addressed all of the physicians’ concerns. Inadequacies in the existing procedures, such as the lack of a clear decision-making process, established review timelines and options for recourse still remain.
In response to this situation, many provinces/territories are reviewing and modifying their existing billing audit process. The CMA and Canada’s physicians believe in an open, accountable and transparent health care financing system. It is for this reason that the CMA has developed this set of principles related to the key components of the audit process to ensure it is fair, efficient, effective and serves the purpose it was originally intended – to ensure the accountability of public funds and to educate physicians on proper billing practices.
Education on proper billing practices:
The audit and review process must be undertaken as an educational exercise. In a fee based system, billing code use and interpretation are complex and can often lead to unintentional errors. If or when inconsistencies occur, the physician must be alerted and provided with the opportunity to explain his/her billing behaviour.
To assist in moving the audit and review process from under a cloud of perceived punishment to that of educational enlightenment, the repayment of any funds shall not commence until the audit and review process is complete and all appeal options have been exercised.
As part of this overall educational framework, it is recommended that all newly licensed physicians be offered an educational program on proper billing interpretations, procedures and practices, and of the audit process itself.
Fair, Transparent and Timely Process:
In order for the audit and review process to be perceived as fair, it must operate at arms length from governments and the Colleges. As a profession, physicians have been granted the privilege of self-regulation by society. Given that medicine is a highly complex art and science, physicians are the only group truly qualified to set and maintain standards and to uphold accountability in matters of professional behaviour.
The billing audit and review process must observe the principles of “Natural Justice” in that the:
audit findings must be both impartial and be seen to be impartial and
physicians affected by the findings must be offered a fair hearing by being given notice in writing of the findings; the opportunity to respond to the findings; all of the information to prepare a response; sufficient time to prepare a response; and an oral hearing if there is a dispute on factual matters or if requested by the physician.
Physicians should be informed that legal counsel and assistance can be retained at any stage of the audit and review process. Physicians should consult with their respective provincial/territorial division or the Canadian Medical Protective Association (CMPA) to see whether such assistance is available, or with lawyers who specialize in this field.
Specific time limits should be adhered to in the auditing and reviewing of a physician’s billings practice, particularly related to when the review period should commence and to the duration of the review period. For example, billings should not be reviewable more than 24 months after the service is rendered and the review period should not be greater than 12 months. These limitation periods recognize that physicians will not be able to recall, with certainty, the vast amount of information contained in a patient’s medical record over the past 10 years – the average length of time in which medical records must be held. It also ensures that audits and reviews are conducted in a timely fashion minimizing undue stress and hardship on the physician and, in light of the health human resources shortage, enabling them to re-focus their attention and energy on taking care of their patients.
Audits and reviews to determine whether there has been any incorrect or inaccurate billing should be undertaken solely by a physician’s peers, and where possible, consisting of physicians from the same specialty and subspecialty and with similar practice type, geography and demography. This peer review group shall consider age-gender distribution and the morbidity of the patients as well as other pertinent matters in arriving at its findings and conclusions.
Any conclusions and/or findings from an audit and review must be prepared in a written report and forwarded, in a timely manner, to the physician and the paying agency. If either party is not satisfied with the findings, they have the option of launching an appeal.
The preferred route would be to pursue and use Alternative Dispute Resolution processes since they tend to encourage a more co-operative climate resulting in fair and appropriate settlements, while avoiding the excessive financial, psychological and procedural costs that can be associated with formal court proceedings.
These guiding principles are the product of an international, provincial and territorial scan of billing audit practices. They have undergone extensive consultation with the provincial/territorial medical associations and national medical organizations.
They should be used to form the foundation of and to guide any reviews or modifications to existing provincial/territorial audit and review processes.
CMA Policy, Medical Professionalism, 2002.
Student Behaviour Guide_Natural.Justice.htm, Dec. 2002