HEALTH AND LIFESTYLE: A SAUDI PROFILE : Journal of Family and Community Medicine

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Review Article

HEALTH AND LIFESTYLE

A SAUDI PROFILE

AI-Shahri, Mohammad Z. FFCM(KFU)

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Journal of Family and Community Medicine: Jul–Dec 1996 - Volume 3 - Issue 2 - p 13-21
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Abstract

“Prevention is better than cure” is an often-quoted axiom. Recently, there was significant development with the enforcement of prevention as a means of avoiding disease and a movement towards positive health. The behaviour of the individuals is intimately related to their health status. This relationship will be scientifically discussed in this paper.

CIGARETTE SMOKING

In the USA, where more than one quarter of all adults smoke cigarettes,1 tobacco smoking is considered the leading preventable cause of disease, disability and premature death.23 It has been estimated that direct and indirect economic losses attributed to tobacco use in USA approach 85 billion US Dollars annually.2 The risk of premature death in smokers was about double that of non-smokers and was directly proportional to the frequency of smoking.24 Recent data showed that 15% of all cancer cases in the world were estimated to be due to cigarette smoking.5 Moreover, slightly less than 20% of all deaths in industrialized countries were attributable to tobacco.67

Tobacco contains about 4000 substances, more than 40 of which are carcinogenic and many others that are hazardous to cardiopulmonary systems.2 Many studies have demonstrated an association between cigarette smoking and cancers of the oral cavity, pharynx, larynx, lungs, esophagus, stomach, colon, rectum, pancreas, kidney and urinary bladder,35,811 and a less strong association with leukemia and cervical cancer.8 A causal association was found to exist between smoking and coronary artery disease, peptic ulcer, chronic obstructive pulmonary disease and stroke.3101213

Cigarette smoking is not only harmful to those using it deliberately, but also to involuntary smokers (the so-called “passive smokers”). Passive smoking is associated with coronary artery disease, chronic obstructive pulmonary disease, asthma, leukemia and cancers of the lung, sinuses, cervix, breast and brain.121416 In children, passive smoking is associated with higher incidence of asthma attacks, pneumonia, ear disease, sudden infant death syndrome and upper and lower respiratory tract infections.121417 Fetuses are not exempted from hazards of smoking. It was found that pregnant mothers exposed to passive smoking were more prone to have low birth weight infants.18

It is doubtful that an ex-smoker will fully resume his pre-smoking health state. However, a substantial risk reduction with great improvement in life expectancy and quality is beyond doubt2111923 The benefit of quitting is documented even for old patients and those with an established tobacco-related disease.2325

LACK OF PHYSICAL EXERCISE

More than half of Americans are considered to have a sedentary life-style.3 This is considered the most preventable risk factor for coronary artery disease.32126 Regular physical exercise decreases the risk for many health problems including non-insulin dependent diabetes mellitus, osteoporosis, osteoarthritis, cardiovascular disease, cancer, hypertension, obesity and hypercholestrolemia.32734 Regular exer-cise was also found to be associated with better general well-being35 and life expectancy3637 in addition to lesser mortality rates .422

Specific prescription of physical exercise should be given to almost all patients, bearing in mind the age and general condition of each individual .323 Almost every patient including elderly people and those with severe coronary artery disease and patients with congestive heart failure, has the potential of benefiting from regular physical exercise.3242537

The physiologic effects of exercise depend on its type, intensity, duration and frequency.38 Recreational physical exercise can be classified into the following two types:3839

1. Isometric (static or anaerobic) exercise:

This type is characterized by an increase in muscle tension without much change in fiber length, with substantial energy expenditure. Examples are weight lifting, hand grip exercises and pushing or pulling against a resistance. Anaerobic exercise increases total peripheral resistance and thus leads to considerable rise in blood pressure. Therefore, this type of exercise is not suitable for patients with cardiovascular disease. It is, however, suitable for athletes to build up bulk muscle.

2. Isotonic (dynamic or aerobic) exercise:

Aerobic exercise is characterized by shortening of muscle fibers with little increase in tension. Examples are swimming, bicycling and running. In aerobic exercise, total peripheral resistance decreases but heart rate and cardiac output increase. This is the type of exercise which is recommended to the general population on a regular basis. The more frequent and prolonged the aerobic exercise, the better its effects, provided that the patient's condition permits it.3340

NON-CONTROL OF BODY WEIGHT

The annual economic losses due to obesity are calculated in billions of dollars.41 The prevalence of obesity in UK (1986) approached 12% in males and 8% in females.42 The situation in USA is even worse, where about one quarter of all adult Americans are overweight.4243 Further- more, recent data indicated a linear increase in the average weight of American adults over the last few decades.41

Obesity is defined by WHO as a body mass index (BMI) more than 30 kg per square metre.4244 The risk of overweight related problems, however, starts at body mass index of 25 kg per square metre.41 Overweight adversely affects the general health of people.35 It is considered to be a risk factor for non insulin dependent diabetes mellitus, coronary artery disease, hypertension, hyperlipidemia, gallstones, low back pain, certain cancers (colorectal and prostate in males, and cervical, breast and ovarian in females) and premature death.4264348

Distribution of regional, rather than total, body fat is increasingly gaining special importance. Recent research has demonstrated an association between the amount of visceral fat and the disturbances in glucose tolerance and lipid concentrations.46 Visceral fat, which can be measured by computerized tomography,46 was found to correlate highly significantly with waist-to-hip ratio.49 Cut off points for waist-to-hip ratio, above which high risk begins, were generally agreed to be 0.95 for men and 0.80 for women.50 High waist-to-hip ratio (upper body obesity) is associated with high risk for hypertension, diabetes mellitus, hypercholestrolemia, hypertriglyceridemia, low HDL, hyperinsulinemia and mortality from cardiovascular disease.44465054

Causes of obesity include a variety of medical, genetic and lifestyle factors. The easiest and most effective modality of prevention is to deal with the lifestyle factors, namely diet and physical activity.4255 Prevention of obesity has been proved to be highly beneficial in preventing obesity-related health hazards, resulting in a better life expectancy and general health.112023325658

NON-USE OF SEAT BELTS

Seat belts were introduced for the first time in the mid 1950s. By the late 1960s, seat belts were required in all new cars in USA. The introduction of interlock devices that prevent ignition if the driver's safety belt was not fastened, resulted in a significant improvement in the use of seat belts. Unfortunately, these devices were met with strong opposition by the public. Minimal improvement occurred with the introduction of warning lights and buzzers. In the USA (1984), legislation for the use of seat belts took place and resulted in increased compliance from 15% to about 50% in a short time.59

Studies from all over the world documented the benefits of seat belts and the hazards of non-use.1127356065 There was more than 60% reduction in the severity of injuries, hospital admissions and hospital charges for users of seat belts.66 In Germany, morbidity and mortality due to road traffic accidents have shown substantial decrease when the rates of seat belts use increased.67 Interestingly it was found that parents’ use of seat belts, influenced children to do the same68 and that non-use of seat belts was associated with other unhealthy behavior such as smoking, overweight and lack of exercise.6269

The airbag was recently introduced in many new motor vehicles as a supplement to seat belts. This new device has proved quite effective but its effect is still limited due to the relatively small number of cars equipped with them.70

THE SITUATION IN SAUDI ARABIA

There is a belief that during the last few decades some unhealthy lifestyles have been adopted by Saudis. However, published national studies that quantify these important assumptions are few.71 Most of the studies referred to below are apparently limited by being either retrospective, based on insufficient recording systems, clinic-based, hospital-based, or done on a small scale. These limitations do not rule out the importance of such studies in providing us with rough estimates of the extent of the problem in our country.

Available data point to cigarette smoking as an important health problem in Saudi Arabia.72 Following the steady increase in the quantity of tobacco imported before 1987, national statistical data7374 showed significant reduction in tobacco imports during the period from 1989 to 1994 (Table 1). Tobacco, however, is still considered a burden on the health and economy of Saudi population. It was found that 33% of male medical students in Riyadh smoke cigarettes.75 The prevalence among other University students was even higher (37%).76 In secondary schools, 22% of male students admitted being regular smokers.77 While smoking is considered socially unacceptable among females, up to 12% of university female students reported being current smokers.78

T1-2
Table 1:
The weight (in thousand tons) and cost (in million SR) of tobacco imported during the period 1989-1994

In 1987, A1-Turki found that the smoking rate in the Eastern Province was 37% and 9% for adult males and females.79 In Al-Baha Province, in 1989, Al-Bedah reported a higher rate among males; about 53% of adult males being smokers. The overall rate, however, was 29% because cigarette smoking was absolutely unacceptable among females in such a rural community.80

Over the past two decades, the per capita calory consumption of Saudis has shown a steady increase (Table 2).8182 Considering BMI of 25 as a cut-off point, Binhemd et a183 found 52% of males and 65% of females visiting the primary care clinic of King Fahd Hospital of the University at Al-Khobar, to be obese. Despite the limitation of such a study, the high figures it showed were supported by findings of Al-Shammari et al.47 Al-Abbad (1995) demonstrated a prevalence of obesity (defined as a BMI of ≥ 85th percentile) approaching 29% among female students aged 11-21 years.84

T2-2
Table 2:
The per capita daily dietary consumption (Kcal/day) of Saudis over the period 1974-1989

Data about recreational aerobic physical activity of Saudis are not yet available. However, if we consider the body weight as an indirect indicator, the physical activity of Saudi population does not seem to be improving in relation to other healthy life styles.

The number of cars imported by Gulf countries increased by 1031% between 1971 and 1984, and deaths due to road traffic accidents increased by 307% in the same period. In Saudi Arabia, the number of cars increased by 2400% within the 10 years ending 1986 and this was associated with 469% increase in trauma cases and a 561% increase in related deaths.85

It is not surprising, therefore, that road traffic accidents constitute the leading cause of death in the age group 16-36 years. In 1984, mortality due to road traffic accidents approached 15 deaths per day. This number reflects only those who died at the scene of the accident. Those who died en route to the hospital or following admission were almost double.86 In 1980, Khawashki estimated the economic loss in Saudi Arabia due to road traffic accidents as Saudi Rivals 4,776,836 per day.87 In Asir region alone, which contains 2.5% of all cars in the country, about 7760 persons were involved in road traffic accidents in the period from 1989-1991; 62% of these were injured, and 12% died.88

Fast driving, driving by children under 18 years of age and driving without a license were found to contribute enormously towards road traffic accidents.8890 The authorities have responded to this by taking different measures including the imposition of severe penalties to offenders. Surprisingly, the mandatory use of seat belts which is probably easier to enforce, is still receiving little attention. In a study done by Marwa et a1,91 none of the victims of road traffic accidents were found to have had the seat belts fastened. A few small studies attempted to measure the rate of seat belts use in certain localities in the country and ended up with the rates ranging from 7--19%.909293 Unfortunately, to the best of the author's knowledge, there have been no nation-wide studies on the rate of seat-belt use.

There is an obvious paucity of research about the lifestyle of Saudi population. However, the data in hand do not call for optimism. Indeed, there is a great need to enforce healthy behavior in the Saudi community as means of promoting healthy lifestyle towards the eventual goal of positive health.

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    Keywords:

    Health promotion; Lifestyle; Kingdom of Saudi Arabia

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