==== Front Ann Saudi MedAnn Saudi MedAnnals of Saudi Medicine0256-49470975-4466King Faisal Specialist Hospital and Research Centre 2489478210.5144/0256-4947.2014.134asm-2-134Original ArticleDistribution of ideal cardiovascular health in a community-based cohort of Middle East population Moghaddam Mariam Maleki Mohebi Reza Hosseini Firoozeh Lotfaliany Mojtaba Azizi Fereidoun Saadat Navid Hadaegh Farzad From the Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, IranCorrespondence: Dr. Farzad Hadaegh, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, PO Box 4763, Tehran 19395, Iran, T: +982122409301-5, F: +982122402463, fzhadaegh@endocrine.ac.irMar-Apr 2014 34 2 134 142 Copyright © 2014, Annals of Saudi Medicine2014This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.BACKGROUND AND OBJECTIVES To improve cardiovascular (CV) health of American population, the American Heart Association (AHA) developed definitions of ideal, intermediate, and poor CV health based on 7 accessible health metrics. The applicability of this construct and the distribution of its components in the community-based populations in the Middle East region have not been reported. DESIGN AND SETTINGS A prospective population-based cohort study conducted from 1999 to 2011. METHODS We used data from phase 4 of Tehran Lipid and Glucose Study (2009–2011) (2861 women and 2004 men, aged ≥ 20 years) to estimate the frequency of CV health levels (ideal, intermediate, and poor) in adults of both genders, and the frequency of each metric at each level of CV health. The median or mean of each CV health metric was also estimated in the whole spectrum of CV health in all subgroups. RESULTS Only 1 adult participant met all 7 ideal CV health metrics; 25.01% of women and 26% of men had intermediate CV health; 74.8% of women and 74% of men exhibited poor CV health. Only 19.7% of women and 10.3% of men had 5 or more ideal CV health metrics. Nonsmoking was the most frequent ideal health behavior. A total of 89.6% of participants had 1 or 2 ideal CV health behaviors. Ideal smoking and fasting plasma glucose had the highest frequency of CV health factors among others. CONCLUSION The frequency of ideal CV health was extremely low in this cohort of adults. The frequency of intermediate CV health was also low, and it may be significantly lower in the general population. ==== Body Despite the decline in cardiovascular disease (CVD) and stroke mortality rate that is primarily because of advances in evidence-based treatment of CVD and CVD risk factors (secondary and primary prevention), CVD and stroke are the leading cause of morbidity and mortality worldwide. Aging of population and increasing prevalence of obesity and diabetes contribute to the persistent CVD and stroke burden.1–3 Cardiovascular (CV) health status remains an important public health problem in the Middle East, and the prevalence of CVD and its associated risk factors is higher in the Middle East than in the Western societies.4,5 The Middle East is one region where lifestyle transformation is occurring. Increased fat and caloric intake and reduced physical activity are factors likely leading to the emergence of hypertension and atherosclerosis in this region. Thus, the examination of regional characteristics that may be leading to the increased CVD is needed. Despite the mortality and morbidity associated with CVD, many Middle Eastern countries lack surveillance data regarding CVD prevalence, incidence, and risk factors. Such information is crucial for monitoring problems and guiding interventions. 6 To prevent ongoing increase in CVD risk factors and CVD events, American Heart Association (AHA) developed a major new goal: “To improve CV health in the population as a whole” and presented definitions of ideal, intermediate, and poor CV health based on 7 modifiable health metrics including 4 CV health behaviors (no smoking, physical activity, healthy diet, and healthy body mass index [BMI]) and 4 CV health factors (smoking, fasting plasma glucose, total cholesterol, and blood pressure).1 In this study, for the first time, we used the AHA 2020 impact goals definitions to evaluate the applicability of this construct and the distribution of its components in a Middle Eastern community-based population. METHODS The details of Tehran Lipid and Glucose Study (TLGS) design have been published elsewhere.7 In brief, TLGS began in 1999 as a long-term community-based study for preventing non-communicable disorders (NCDs). The first phase of the study was a cross-sectional study to evaluate the prevalence of NCDs and their respective risk factors in 15 005 participants from district No.13 of Tehran, the capital city of Iran. The next phases of the study were designed as prospective follow-up studies in every 3 years. At each phase of the study, a limited physical examination including blood pressure, pulse rate, and anthropometrical measurements were performed and lipid profiles, fasting blood sugar, and 2-hour-postload glucose levels were measured. For the present study, we used data from phase 4 that was performed in 2009–2011. In phase 4, 10 887 participants (20 years old or above) were included, of whom only 4865 (2861 women and 2004 men) participants aged ≥20 years, had complete data for CVDs and all 7 metrics of AHA’S definition of CV health, and were included in the present study. The only exclusion criterion was pregnancy. The proposal of this study was approved by the research council of the Research Institute for Endocrine Sciences of Shahid Beheshti University of Medical Sciences, and written informed consent was obtained from each subject. Definition of CV health We used AHA 2020 impact goals definitions of ideal, intermediate, and poor CV health. Criteria for CV health components are outlined in Table 1. Ideal CV health is defined as the simultaneous presence of 4 ideal health behaviors (no smoking within the last year, ideal BMI, ideal physical activity, and ideal diet); the simultaneous presence of 4 ideal health factors (no smoking within the last year, untreated total cholesterol <200 mg/dL, untreated blood pressure <120/80 mm Hg, and untreated fasting plasma glucose <100mm Hg), and the absence of CV diseases. Intermediate CV health is defined as the presence of at least 1 intermediate CV health metric without any poor health metrics. Poor CV health is defined as the presence of any poor CV health metrics.1 Diet scoring Dietary assessment was performed through dietary habits and qualitative Food Frequency Questionnaire (FFQ) and two 24-hour dietary recalls.8 The Persian translated version of FFQ was reliable and valid for assessing the intake of several food groups for TLGS population.8 In the present study, we first excluded individuals with extreme energy intake (±3 SD). We then used 5 AHA’s ideal CV health components including: ≥4.5 cups per day of fruits and vegetables; ≥2 to 3.5 oz servings per week of fish; ≥3 1-oz equivalent servings per day of whole grains; <1500 mg per day sodium; and ≤36 oz per week of sugar-sweetened beverages (≤450 kcal per week) to categorize participants to ideal (4–5 component), intermediate (2–3 component), and poor (0 to 1 component) diet status.1 Physical activity The physical activity level was assessed using Modifiable Activity Questionnaire (MAQ). Persian-translated MAQ had high reliability and moderate validity for TLGS population.9 We used AHA’s classification to categorize physical activity levels to ideal (≥150 min/week moderate intensity or ≥75 min/week of vigorous intensity), intermediate (1–149 min/week moderate intensity or 1–74 min/week vigorous intensity), and poor (none) activity. Statistical analysis Continuous variables with normal distribution were described by mean (SD) and compared by t test. Continuous variables without normal distribution were described by median (IQR) and compared by Mann-Whitney test. Categorical variables were described by percentage and compared by χ2 tests. RESULTS A total of 4865 participants (58.8% women) were included for the final analysis. Baseline characteristics and frequency of all CV health metrics based on health status (ideal, intermediate, and poor) and sex group are presented in Table 2. The majority of participants had an ideal smoking status. The frequency of ideal smoking status was significantly higher in women than in men (95.8% vs. 71.5%). Only 1/3 of men and less than 1/3 of women had ideal BMI. About 70% of women and 67% of men had overweight or obesity. The frequency of poor BMI (obesity) was significantly higher in women than in men (30.2% vs. 19.5%). Among all CV health behaviors, ideal physical activity and ideal diet had the lowest frequency. Only 1.1% of women and 3.5% of men had an ideal physical activity. Women exhibited higher frequency of poor physical activity; in contrast, men exhibited higher frequency of poor diet status. A total of 1.3% of men versus 2.9% of women had an ideal diet score (Figure 1). Ideal smoking and fasting plasma glucose (FPG) had the highest frequency of CV health factors among others. Women exhibited higher frequency of ideal FPG as compared to men (78.2% vs. 72.3%). About 6% of participants had poor FPG. Ideal BP was the least frequent CV health factor. The frequency of poor BP was higher in men than in women. The frequencies of ideal, intermediate, and poor total cholesterol were not significantly different between men and women (Figure 1). No men and only 1 woman exhibited an ideal level of all 7 CV health metrics and had ideal CV health (Figure 2). Approximately, 74% of participants had poor CV health and 25.5% exhibited intermediate CV health. Only 19.7% of women and 10.7% of men had 5 or more ideal CV health metrics. The majority of participants had 2 to 4 ideal CV health metrics. Only 1 man and 1 woman exhibited ideal level of all 4 CV health behaviors, and one-third participants had 3 CV health behaviors. More than 18% of men had no ideal health behaviors. About 37% of women and 17% of men exhibited an ideal level of all 4 CV health factors. Eight women and 37 men had no ideal health factors. Data pertaining to distribution of participants by number of ideal CV health metrics are shown in Figures 3, 4 and 5. The mean distribution of CV health metrics are displayed in Table 3. The medians of ideal and intermediate physical activities, in minutes per week, are significantly lower in women than in men. There were no significant differences in mean BMI between women and men in participants with ideal or intermediate BMI, but the mean of poor BMI was significantly higher in women than in men. The mean systolic blood pressure and the mean diastolic blood pressure were higher in men than in women in all 3 levels of blood pressures. The mean total cholesterol in all 3 levels was similar in women and men. DISCUSSION This study that used AHA 2020 goals definitions of ideal, intermediate, and poor CV health to evaluate the CV health status in TLGS indicated that ideal CV health is extremely low in this population of adults. Only 1 participant had ideal CV health, and majority of participants (74.5%) exhibited poor CV health. The low frequency of ideal CV health in our population is consistent with reports from other parts of the world: North America, Europe, and East Asian countries (Table 4).10–13 In the Atherosclerosis Risk in Communities study, only 0.1% of participants exhibited ideal CV health and 82.5% had poor CV health.11 In multiple reports from the National Health and Nutrition Examination Survey (NHANES) studies, the prevalence of ideal CV health was less than 2%.14–16 Given a less strict definition of ideal CV health (5 or more ideal CV health metrics), 16% of participants (19.7% of women and 10.7% of men) met ≥5 ideal CV health metrics. Regarding the extremely low prevalence of ideal CV health, a less strict definition of ideal CV health may be more logical. However, there is a strong relationship between the numbers of ideal CV health metrics and incidence of CVD outcomes. Meeting a greater number of CV health metrics is associated with a lower risk of CVD outcomes.16,17 The goal should be achievement of greater number of ideal CV health metrics by all individuals. Only 2 participants had all 4 ideal CV health behaviors, and 1.3% had 3 to 4 ideal CV health behaviors. The majority (73.9%) of men and 68.8% of women met only 0 to 1 ideal CV health behaviors. These results are especially concerning because TLGS is a cohort study, and the frequency of 0 to 1 ideal CV health behaviors might be higher in the community. There is a causal relationship between CV health behaviors and factors.14 However in our study, about 62% of participants exhibited 3 to 4 ideal CV health factors despite very low frequency of 3 to 4 ideal CV health behaviors (1.3%), which differs from other studies. This difference may be because of the following reasons: first, relatively younger age of our study population than other studies. 11,18 Younger individuals have higher frequency of ideal CV health factors than older individuals despite the lower frequency of ideal smoking and healthy diet.14 When individuals get older and develop CVD or CVD risk factors such as hypertension and diabetes mellitus, they might follow healthier lifestyle leading to lower frequency of 3 to 4 ideal CV health factors despite higher frequency of 3 to 4 ideal CV health behaviors in older populations. Second, the frequency of ideal physical activity may be underestimated in our study because we only considered leisure time physical activity. When we included household and job activities, the frequency of ideal physical activity was extremely overestimated, which was not consistent with other studies19–21 and was far from reality. Third, we considered all 5 components of AHA healthy diet leading to the lower frequency of ideal level of healthy diet and 3 to 4 ideal CV health behaviors than the other studies that used less strict diet scoring or included fruits and vegetables as sole criterion for healthy diet.16 Women exhibited greater numbers of ideal CV health metrics than men, which may be attributed to the lower frequency of smoking in women. The frequency of poor and intermediate smoking was about 14.2%, which was consistent with the results of previous Iranian reports. The prevalence of smoking has been reported 10.6% to 20.6% in previous studies.19,22,23 The Frequencies of ideal, intermediate, and poor BMI (overweight and obesity) were 31.3%, 42.9%, and 25.8%, respectively. These results are comparable with the reports from TLGS in phase 1 (1999–2001) and National Surveillance of Risk Factors of Non-Communicable Diseases in Iran. According to these two reports, the prevalence of overweight was 40% and 36.3%, respectively, and the prevalence of obesity was 23.1% and 22.3%, respectively.22,24 Overall, frequencies of ideal smoking, diet, BP, and FPG were higher in women than in men, which might be because of greater self-care in women. The frequency of ideal BMI was higher in men than in women owing to higher frequency of ideal physical activity and lower frequency of ideal smoking in men. Like other studies, the frequency of physical inactivity was higher in women than in men, which may be because of the limitation of sport places for women. The medians of ideal and intermediate physical activities in women were less than in men, 180 and 22 versus 233.6 and 32 minutes per week of moderate intensity physical activity, respectively. These results were smaller in values than the results from NHANES 2003–2008, in which the medians of ideal and intermediate physical activities were 480 to 620 and 80 to 90 minutes per week, respectively. This difference may be attributed to the following two reasons: first, difference in cultural and socioeconomic factors and availability of sport places in these 2 communities; second, NHANES included sport, household, and transport activities, but our study included only sport and leisure time physical activities owing to overestimation of job and household activities by the participants. The means of BMI, cholesterol, FPG, and systolic and diastolic BP are comparable with other reports.11,22 There are causal relationships between physical inactivity, smoking, unhealthy dietary pattern and obesity and incidence of diabetes, hypertension, and hypercholesterolemia. Improvement in even a single CV health behavior can lead to improvement in multiple CV health factors.14 There is noteworthy evidence showing that following a healthy diet, moderate physical activity, smoking cessation, and BMI less than 25 kg/m2 associate with reduction in incidence of diabetes, hypertension, and hyperlipidemia.25–28 The limitations of the study merit were as follows: first, less than 50% of participants in TLGS phase 4 filled the FFQ. A comparison between responders and no responders showed that responders had better smoking status and lower means of BMI, FPG, total cholesterol, and hypertension, which were statistically significant. Second, the evaluation of dietary status is based on participants’ reports, and it is subject to measurement error. Third, physical activity is also based on participants’ reports, and measurement error is inevitable. We considered only sport and leisure time physical activity that may lead to underestimation of physical activity. In summary, the frequency of ideal CV health was negligible and the frequency of intermediate CV health was about 25.5% in this cohort of adults. The majority of participants had poor CV health. Although 62% of participants exhibited 3 to 4 CV health factors, the frequency of 3 to 4 CV health behaviors was very low (1.3%). These results are especially concerning because they come from a general population-based cohort study; even the frequency of intermediate CV health might be much lower. To improve the CV health of population, we should improve CV health behaviors through multidisciplinary interventions. It needs the involvement of individuals, public health personnel, educators, and policy makers. Acknowledgments This study was supported by Grant No.121 from the National Research Council of the Islamic Republic of Iran. We express appreciation to the participants of district 13, Tehran, for their enthusiastic support. Competing interests The authors declare that they have no competing interests. Figure 1 Distribution of CV health metrics among women (upper panel) and men (lower panel). Figure 2 Distribution of CV health status in adults ≥20 years old in TLGS 4. Figure 3 Distribution of participants by the number of ideal CV health metrics in adults ≥20 years old, TLGS 4. Figure 4 Distribution of participants by the number of ideal CV health behaviors in adults ≥20 years old, TLGS 4. Figure 5 Distribution of participants by the number of ideal CV health factors in adults ≥20 years old, TLGS 4. Table 1 American Heart Association 2020 strategic impact goals definitions of poor, intermediate, and ideal cardiovascular health for each goal/metric. Cardiovascular health goals/metrics Poor Intermediate Ideal Current smoking Yes Former, quit ≤12 mo previously Never or quit >12 mo previously Body mass index, kg/m2 ≥30 25–29.9 <25 Physical activity level None 1–149 min/wk moderate intensity, 1–74 min vigorous intensity, 1–149 min/wk moderate+ vigorousa ≥150 min/wk moderate intensity, ≥75 min/wk vigorous intensity, or ≥150 min/wk moderate+ vigorousb Healthy diet score componentsb 0–1 2–3 4–5 Total cholesterol, mg/dL ≥240 200–239 or treated to goal <200, untreated Blood pressure, mm Hg SBP ≥140 or DBP ≥90 SBP 120–139, or DBP 80–89, or treated to goal <120/<80, untreated Fasting plasma glucose, mg/dL ≥126 100–125 or treated to goal <100, untreated SBP: Systolic blood pressure, DBP: diastolic blood pressure. a Minutes of vigorous activity are equal to 2 times the minutes of moderate activity when moderate and vigorous activities are combined. b Healthy diet score components include: fruits and vegetables, ≥4.5 cups per day; fish, 2 or more 3.5-oz servings per week; fiber-rich whole grains (≥1.1 g fiber/10 g carbohydrate), 3 or more 1-oz-equivalent servings per day; sodium, ≤1500 mg/d; and sugar-sweetened beverages, ≤450 kcal/wk. Dietary recommendations are scaled according to a 2000-kcal/d diet (Circulation 2010, 121:586–613). Table 2 Baseline characteristics and frequency distribution of CV health metrics adults. Variables Women (n=2861) Men (n=2004) P value Number Percent Number Percent Age (mean [SD]) 41(12.8) 42 (14.6) .017 Educational level  Illiterate 63 2.2 7 0.3 <.001  High school 734 25.7 652 32.5 BMI  Ideal 857 30 665 33.2 <.001  Intermediate 1141 39.9 948 47.3  Poor 863 30.2 391 19.5 Smoking  Ideal 2740 95.8 1433 71.5 <.001  Intermediate 42 1.5 126 6.3  Poor 79 2.8 445 22.2 Physical activity  Ideal 32 1.1 70 3.5 <.001  Intermediate 1562 54.6 1338 66.8  Poor 1267 44.3 596 29.7 Diet scoring  Ideal 82 2.9 27 1.3 <.001  Intermediate 2217 77.5 1434 71.6  Poor 562 19.6 543 27.1 Blood pressure  Ideal 1737 60.7 843 42.1 <.001  Intermediate 799 27.9 812 40.5  Poor 325 11.4 349 17.4 Total cholesterol  Ideal 1791 62.6 1248 62.3 .43  Intermediate 809 28.3 591 29.5  Poor 261 9.1 165 8.2 FPG  Ideal 2238 78.2 1449 72.3 <.001  Intermediate 457 16 429 21.4  Poor 166 5.8 126 6.3 CV: Cardiovascular, BMI: body mass index, FPG: fasting plasma glucose. Table 3 Mean distribution of cardiovascular health metrics in ideal, intermediate, and poor CV heath. Variables Women (n=2861) Men (n=2004) P value Physical activity (min/wk) Median (IQR) Median (IQR) <.001 Ideal 180.0 (166.2–224.8) 233.6 (177.2–291.6) Intermediate 22.2 (10.4–46.2) 31.7 (13.4–62.3) BMI (kg/m2) Mean (SD) Mean (SD) <.001 Ideal 22.3 (2.0) 22.4 (2.0) Intermediate 27.4 (1.4) 27.3 (1.4) Poor 33.9 (3.6) 32.8 (2.7) SBP (mm Hg) <.001 Ideal 101.4 (9.0) 106/0 (8/0) Intermediate 118.5 (9.9) 120.5 (8.6) Poor 139.5 (17.5) 137.8 (14.8) DBP (mm Hg) <.001 Ideal 67.9 (6.8) 70.6 (6/0) Intermediate 79.7 (5.6) 80.9 (5.5) Poor 91.1 (8.9) 92.3 (9.8) Total cholesterol (mg/dL) .37 Ideal 165.4 (21.8) 164.5 (22.6) Intermediate 208.7 (22.8) 207.8 (25.6) Poor 263.8 (23.9) 265.9 (43.6) FPG (mg/dL) <.001 Ideal 88.9 (5.8) 90.2 (5.6) Intermediate 105.5 (7.4) 106.2 (7.0) Poor 175.8 (51.7) 181.1 (55.1) CV: Cardiovascular, IQR: interquartile range, BMI: body mass index, SBP: systolic blood pressure, DBP: diastolic blood pressure, FPG: fasting plasma glucose. Table 4 Comparison of cardiovascular status in our study and other studies. TLGS (Our study) % ARIC % Heart SCORE % NHANES (1988–2010) % CHED % South European Sample size 4865 12 744 1993 44 959 1 012 418 11 408 Age 41.4 (13.6) 45–64 59 (7.5) 45–46.8 42.7 (6.4) >18 Ideal (%) 1 participant 0.1 (n=17) 0.1 (n=1) <2 1.5 0.2 Intermediate (%) 25.5 17.4 -------- -------- 33.9 19.8 Poor (%) 74.5 82.5 -------- -------- 64.6 80.0 ≥5 metrics 16 12.2 5.3 21–28 30 15.5 ≤3 metrics 60 >70 80.9 48–52 53 64.4 4 behavior 2 participants -------- 2 -------- -------- 0.8 3–4 behavior 1.3 -------- 10.9 -------- -------- 12 4 factors 29 -------- 1.4 -------- -------- 8.1 3–4 factors 62 -------- 13.9 -------- -------- 34.5 TLGS: Tehran Lipid and Glucose Study, ARIC: Atherosclerosis Risk in Communities study, SCORE: the heart strategies concentrating on risk evaluation (Heart SCORE) study, NHANES: National Health and Nutrition Examination Survey, CHED: Chinese Health Examination Database. ==== Refs REFERENCES 1 Lloyd-Jones DM Hong Y Labarthe D Mozaffarian D Appel LJ Van Horn L 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