Saudi Journal of Kidney Diseases and Transplantation

ORIGINAL ARTICLE
Year
: 2019  |  Volume : 30  |  Issue : 1  |  Page : 33--38

Blood pressure control, lifestyle and disease awareness of Saudi hypertensive patients


Huda Al Duraihim1, Ghormullah Alghamdi1, Mohammed AlNemer1, Abdullah Eid Abdulaal2, Abdullah Al Sayyari3,  
1 Department of Medicine, King Abdulaziz Medical City, Riyadh, Saudi Arabia
2 Medical Intern, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
3 Department of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia

Correspondence Address:
Abdullah Eid Abdulaal
King Saud bin Abdulaziz University for Health Sciences, Riyadh
Saudi Arabia

Abstract

Mortality and morbidity from hypertension have reached epidemic proportion worldwide. It has been estimated that 874 million adults globally have systolic blood pressure (SBP) of 140 mm Hg or higher. A recent study from Saudi Arabia found 15.2% of adult Saudis were hypertensive of whom 57.8% unaware of this diagnosis. We aim to evaluate the lifestyle advices given to Saudi hypertensive patients, their current lifestyle to determine the effects of these factors on their BP control. Nonrandom convenience sampling of Saudi patients followed up in the clinic by cross-sectional questionnaire. Their BP, blood sugar, and other anthropometric data were measured and provided self-filled questionnaire. Of all participants, 148 known hypertensives on treatment were included in the study with a mean age of 45.7 ± 29.0 years. The mean SBP and diastolic BP were 134.7 ± 21.4 and 85.0 ± 18.9 mm Hg, respectively. The overall awareness score was 77.5% with the highest awareness score for “BP can be controlled by proper management” (93.2%) and the lowest score given for “BP is not affected by alcohol consumption” (63.4%). We found significantly lower mean SBP in those with higher awareness in five of the nine awareness areas inquired. We believe that educating hypertensive patients about their diseases and lifestyle advices has a significant impact on disease control and well-being.



How to cite this article:
Al Duraihim H, Alghamdi G, AlNemer M, Abdulaal AE, Al Sayyari A. Blood pressure control, lifestyle and disease awareness of Saudi hypertensive patients.Saudi J Kidney Dis Transpl 2019;30:33-38


How to cite this URL:
Al Duraihim H, Alghamdi G, AlNemer M, Abdulaal AE, Al Sayyari A. Blood pressure control, lifestyle and disease awareness of Saudi hypertensive patients. Saudi J Kidney Dis Transpl [serial online] 2019 [cited 2019 Jun 25 ];30:33-38
Available from: http://www.sjkdt.org/text.asp?2019/30/1/33/252930


Full Text



 Introduction



Mortality and morbidity from hypertension have reached epidemic proportion worldwide.[1] It has been estimated that 874 million adults have systolic blood pressure (SBP) of 140 mm Hg or higher.[2] Only about half of hypertensive patients in the USA had controlled BP (<140/<90 mm Hg diastolic) in 2007.[3]

A recent study from Saudi Arabia found 15.2% of adult Saudis were hypertensive of whom 57.8% unaware of this diagnosis. Among those aware that they have hypertension, 78.9% reported compliance with their medication for their condition with 45% having controlled BP.[4]

Some of the factors have been found to improve BP control include enhanced awareness of what BP control means,[5],[6] what its complications are,[7] use of home BP monitoring (although ambulatory and home BP monitoring are not fully interchangeable[8] and adhering to lifestyle changed recommended by their physicians.[9],[10]

In this study, we evaluate the effect of awareness, lifestyle changes, home BP monitoring, and – on the degree BP control among young Saudis with diagnosed with hypertension. We also evaluate BP status and demographic variables in a group of young Saudis who were not diagnosed with hypertension.

 Patients and Methods



This is a cross-sectional questionnaire-based study in Saudi patients followed up in the clinic for hypertension. Their BP, blood sugar, height, and weight were measured, and they completed questionnaire with fourth sections. The first enquired about their weekly drugs, symptoms, clinic visits, smoking habits, diet type, and the number of antihypertensive medications they use; the second section enquired about what recommendations for lifestyle changes they were given by their doctors, the third section enquired about their awareness about hypertension and its complications; the fourth section enquired about home BP measurement, emergency room (ER) visits, and compliance.

A further 389 participants surveyed did not have the diagnosis of hypertension was made on them to evaluate their BP, frequency of undiagnosed among them, body mass index (BMI) and random blood sugar and mean age.

We investigated the effect on SBP and diastolic BP (DBP) among the group diagnosed with high BP by awareness/nonawareness of complications, the recommendations they receive on lifestyle changes and of home BP measurement, ER visits, and compliance.

Descriptive statistics were generated using JMP Pro.

 Results



One hundred and forty-eight participants, who were told that they have hypertension on at least two clinic visits were included in the study. The mean age, mean weight, height, and BMI were 46.2 ± 29.3 years, 70.7 ± 16.1 kg, 160.9 ± 9.3 cm, and 27.0 ± 6.9, respectively [Table 1]. Only 16 (12%) of these patients were smokers. The mean random blood sugar was 6.8 ± 3.5 mmol/L. The SBP, mean DBP and mean, mean BP were, respectively, 143.4 ± 21.4, 84.4 ± 17.9, and 91.3 ± 13.9 mm Hg [Table 1].{Table 1}

A further 389 participants surveyed did not have the diagnosis of hypertension made on them. Among this group, the mean SBP and DBPs were 118.0 ± 18.5 and 85.0 ± 18.9 2 mm Hg, respectively. Out of these patients, had undiagnosed 13.3% SBP (±140 mm Hg) and 15.2% had undiagnosed DBP. The mean age, BMI, and random blood sugar were significantly lower in the group not known to have hypertension compared to the group with known hypertension (P = 0.0001, 0.04, and 0.0025, respectively) [Table 2].{Table 2}

[Table 3] shows the self-reported diet, exercise, symptoms, clinic visits, smoking habits, and some medications taken. It can be seen that almost two-third of the patients visited their doctors 3–6 monthly, almost half use only one type of medication. Headaches is the most common symptom suffered (42.7%) with 27.6% reporting no symptoms; 13.8% smoke, 57.6% exercise 20–60 min weekly with 75.3% walk as an exercise activity and 39.7% use low-salt diet [Table 3].{Table 3}

[Table 4] shows that a total of seven pieces of advice asked about regarding required lifestyle changes were given to the patients to varying degrees of frequency with the lowest (given to 63.8% of the patients) being to “avoid alcohol” and the highest (given to 87.8% of the patients) being to “exercise.” The overall frequency of the advice given for lifestyle behavior was 77.9%.{Table 4}

When we compared the mean SBP levels in those told of these life to those not told of them, we find significant differences only in those “told to avoid stress” (133.0 ± 2.1 and 157.7 ± 5.2 mm Hg respectively (P = 0.0007) and in those told “old to avoid alcohol” (133.1 ± 2.5 and 141.3 ± 3.5 mm Hg, respectively (P = 0.05). No significant differences were seen in the DBP.

The patients' awareness of participants about hypertension and its complications is shown in [Table 5]. This section of the questionnaire tested the participants' awareness on nine relevant issues. The overall awareness score was 77.5% with the highest awareness score for “BP can be controls by proper management” (93.2%) and lowest score given for “BP is not affected by alcohol consumption” (63.4%).{Table 5}

On evaluating the awareness/non-awareness of complications affect SBP control, we found significantly lower mean SBP in those higher awareness in five of the nine awareness areas shown in [Table 5]. No significant difference in the DBP was seen in any y of these areas of awareness.

The next section of the questionnaire asked about the participants' home BP measurement, ER visits, and compliance. This reveals that 42.7% measure their BP at home, 22.8 % visited the ER for high BP over the previous 12 months, 77.5% claimed that they are complaint and 16.4% have no problem taking their medications [Table 6].{Table 6}

There was no difference in the mean SBP between those measuring their BP at home and those who do not. However, those who visited the ER during the previous 12 months had significantly higher SBP compared to those who did not (143.7 ± 4.7 and 132.7 ± 2.7 mm Hg respectively; P = 0.037). No differences were seen in the DBP.

 Discussion



In our group with diagnosed hypertension, 41.4% had uncontrolled SBP (±140 mm Hg) and 34.8% had uncontrolled DBP (±90 mm Hg). In a study for Kenya, only 66.6% of patients followed up for hypertension had uncontrolled hypertension.[11] However, the mean age in the Kenyan group was higher than ours (63 versus 46.2 years). In a cohort of elderly American patients (aged ≥65 years), the prevalence of uncontrolled hypertension was 54.3%.[12]

On the other hand, in the group not previously told that they have hypertension, 13.3% had undiagnosed systolic hypertension (±140 mm Hg) and 15.2% had undiagnosed diastolic hypertension. Results from NHANES 2011–2012 study, the overall prevalence of uncontrolled hypertension using JNC 7 criteria in the general population was 16.6%.[13]

In our study, the mean age, BMI and random blood sugar were significantly lower in the group not known to have hypertension compared to the group with known hypertension.

Appropriate lifestyle modifications have been shown to reduce blood pressure.[14] Weight loss of 3%–9% reduces SBP by 3 mm Hg, salt diet by 5 mm Hg and alcohol moderation by 4 mm Hg.[9],[10] In our study, we found that the overall frequency of the advice given for lifestyle behavior was 77.9%. Lower mean SBP was seen in those told “to avoid stress” and those not told and in those told “ to avoid alcohol”. Among our patients, 57.6% exercise 20–60 min weekly (as walking in 75.3%) and 39.7% use low-salt diet.

Awareness of BP and its complications have also been shown to be associated with reduction in BP. One report states that 90% of hypertensive patients knew that lowering BP would improve health[15] and with increasing awareness reported between 1976 and 1991 (from 51% to 73%).[16] Nevertheless, the awareness of optimal BP remains suboptimal.[7]

The overall awareness score in our study was 77.5% with the highest awareness score for “BP can be controlled by proper management” (93.2%) and the lowest score given for “BP is not affected by alcohol consumption” (63.4%). We found significantly lower mean SBP in those with higher awareness in five of the nine awareness areas enquired about. Unawareness by the patients of their optimal SBP was found to be an independent factor of poor BP control[17] [Table 7].{Table 7}

Of all the patients included in our study, 42.7% measure their BP at home. This compares to reported 44% to 66% of individuals with hypertension who measured their own BP. The use of home blood pressure monitoring is associated with small but significant reduction in BP (2.2 mm Hg for SBP and 1.9 mm Hg DBP).[18],[19] The patients more likely to monitor home blood pressures tend to possess higher hypertension awareness. In our study, however, we found no difference in the mean SBP between those measuring their BP at whom and those who do not.

In the present study, 22.8% visited the ER for high-BP over the previous 12 months. This group of patients had significantly higher SBP compared to those who did not attend the ED in the previous 12 months. The reported incidence of hypertensive emergencies among patients in the USA has dropped from 7% to 1% of patients with hypertension.[20] However, the overall incidence of visits to the ED necessitated by hypertensive emergencies more than doubled between 2006 and 2013.[21]

 Conclusion



The prevalence of uncontrolled hypertension in our group of young hypertensive patients visiting clinics was high (41.4% had uncontrolled SBP and 34.8% had uncontrolled DBP). In the even younger group, we studied and were not previously told that they have hypertension we found undiagnosed Systolic hypertension in 13.3% and undiagnosed diastolic hypertension in 15.2%. The overall awareness score in our study was 77.5%. Some aspects of awareness and lifestyle modifications reduced the SBP but not the DBP.

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