STUDY OF PREVALENCE OF HYPERTENSION AND SOCIODEMPGRAPHIC FACTORS IN A RURAL COMMUNITY OF MAHARASHTRA
HA Khadilkar, CH Ghattargi, GH Thite
Department of Preventive and Social Medicine, Swami Ramanand Teerth Rural Medical College, Ambajogai-431517, Dist-Beed (Maharashtra) India
 
  ABSTRACT
 
WHO health report 1998 stated that considering the prevalence of any disease, hypertension ranked fourth in the world. Studies on hypertension, one of the important risk factor of cardiovascular disorders, in rural India are scarce. Because of changing life style and environment, the problem of hypertension is increasing. A community based study was carried out at the adopted village Chanai, a field practice area of Department of Preventive and Social Medicine, S.R.T.R. Medical College, Ambajogai to find out the prevalence of hypertension in population 20 years and above and to study some socio-demographic factors affecting hypertension. A mass screening of 1419 subjects was done for blood pressure measurement. There were 84 cases of hypertension giving overall prevalence 5.92% (male-5.85% and female-6.00%). There was a significant increase in the prevalence of hypertension with increasing age in both sexes. The prevalence of hypertension went on increasing significantly with increase in socio-economic status and with increase in literacy status.
 
 INTRODUCTION
 
W. H. O. health report 1998 stated that considering the prevalence of any disease hypertension ranked fourth in the world1. In developing countries perhaps its impact was not fully regarded due to high incidence of communicable diseases. Now as communicable diseases are getting controlled and life expectancy is increased, its importance is now being felt2,3. Studies on hypertension, one of the important risk factor of cardiovascular disorders, in rural India are scarce. Because of changes in life style, changes in environment, the problem of hypertension is increasing. A community based study was carried out at the adopted village Chanai, a field practice area of Department of preventive and social medicine, S.R.T.R. Medical college, Ambajogai to find out the prevalence of hypertension in population 20 years and above to study some socio-demographic factors affecting hypertension.
 
Table 1: Age-wise distribution of hypertensives
 
Age (completed years) Total
Total no. of persons studied No. of cases with hypertension Prevalence of hypertension in %
20-29 387 2 0.52
30-39 353 6 1.69
40-49 295 10 3.39
50-59 177 18 10.17
60-69 120 16 13.33
70-79 70 23 32.86
80 17 9 52.94
Total 1419 84 5.92
X2 = 201.35, df =5, p < 0.001
 
 MATERIAL AND METHODS
 
A mass screening of the population 20 years and above for blood pressure measurement was carried out to find out the prevalence of hypertension in village Chanai. This village was selected randomly among three villages adopted by the Dept. of P.S.M. The population 20 years and above was 1637 and surveyed population 20 years and above was 1419 (86.68%). The criteria laid down by WHO Expert Committee on Hypertension Control was followed to detect hypertension4.
 
Hypertensives were interviewed with the help of predesigned, pretested proforma and information regarding identification data, socioeconomic status and literacy status was recorded.
 
 RESULTS
 
There were 84 cases of hypertension giving overall prevalence of 5.92%. The age specific prevalence of hypertension increased significantly as age increased (Table 1). Out of 752 males, 44 had hypertension giving a prevalence of 5.85% and there were 40 hypertensive females out of 667 females giving a prevalence of 6%. No significant difference was found in the prevalence of hypertension between males and females. Chi-square test revealed that there was a significant increase in the prevalence of hypertension with increasing age in both sexes (p < 0.001) (Table 2). The prevalence of hypertension increased significantly with increase in socioeconomic status (Table 3) (p < 0.05). The prevalence of hypertension also increased significantly with the increase in literacy status (Table 4).
 
Table 2: Age and sex wise distribution of hypertensives
 
Age (years) Male Female
Total number of person studied Number of cases with hypertension Prevalence of hypertension in % Total number of person studied Number of cases with hypertension Prevalence of hypertension in %
20-29 206 2 0.97 181 - -
30-39 191 5 2.61 162 1 0.61
40-49 158 6 3.79 137 4 2.92
50-59 96 9 9.37 81 9 11.11
60-69 58 7 12.06 62 9 14.52
70-79 35 11 31.42 35 12 34.28
80 8 4 50.0 9 5 55.55
 
  DISCUSSION
 
The true estimate of the prevalence of hypertension can only be obtained by community based epidemiological studies. The present study showed overall prevalence of hypertension 5.92%, this was comparable with overall prevalence noted in different studies like Gupta S. P. et al (1977)5 of 3.57%, Gupta S. P. et al (1978)6 of 6.43%, Wasir H. S. et al (1983)7 of 5.4%, ICMR studies (1992)8 of 5%, Joshi P. P. et al (1993)9 of 4%, Goel N. K. and Kaur P. (1996)10 of 7.19%.
 
Table 3: Distribution of hypertensives according to socioeconomic status.
 
X2= 10.17, p<0.05
 
Socioeconomic status (by B. G. Prasad) Population surveyed Cases of hypertension Prevalence of hypertension in %
No. % No. %
Class I Upper 43 3.03 5 5.95 11.62
Class II Upper middle 106 7.47 11 13.10 10.38
Class III Lower middle 446 31.43 29 34.52 6.50
Class IV Upper lower 643 45.31 34 40.48 5.29
Class V Lower 181 12.76 5 5.95 2.76
Total 1419 100 84 100 5.92
 
Table 4: Distribution of hypertensives according to their literacy status.
 
X2= 15.51, p< 0.01
 
Literacy status Population surveyed Cases of hypertension Prevalence of hypertension in %
No. % No. %
Illiterate 650 45.81 22 26.19 3.38
Primary 471 33.19 38 45.24 8.07
Secondary 169 11.91 11 13.10 6.51
Higher Secondary 83 5.85 7 8.33 8.43
Graduate 42 2.96 5 5.95 11.90
Postgraduate 3 0.21 1 1.19 33.33
Professional 1 0.07 0 0.00 00
Total 1419 100 84 100 5.92
 
Study noted that with increase in age, prevalence of hypertension also increased similar results were observed by Gupta S.P. et al (1977)5, Gupta S.P. et al (1978)6, Sharma B. K. et al (1985)11, Joshi P. P. et al (1993)9. The study showed higher prevalence of hypertension in females than males similar findings were noted by Gupta S. P. et al (1977)5 in which females had 3.59% and males had 3.55% prevalence, Gupta S. P. et al (1978)6 observed 6.99% and 5.99% prevalence of hypertension in females and males respectively, Wasir H. S. et al (1983)7 noted 7.5% and 3.2% in females and males respectively, Goel N. K. and Kaur P. (1996)10 recorded 8.82% and 5.57% in females and males respectively, Gupta R. et al (1997)12 reported 33% in females and 30% in males in urban community and present study results were contradictory to studies by Joshi P. P. et al (1993)9 and Gupta R. et al (1997)12 carried out in rural community in which prevalence of hypertension in males was more than females. Gupta S. P. et al (1977)5, Gupta S. P. et al (1978)6 and Sharma B. K. et al (1985)11 reported that with increase in age the prevalence of hypertension also increased in both sexes these findings were comparable to present study results.
 
The present study showed the prevalence of hypertension was significantly higher in upper income socio-economic status this finding was confirmatory to the observations made by Gupta S. P. et al (1977)5, Gupta S. P. et al (1978)6 and Sharma B. K. et al (1985)11.
 
  CONCLUSION AND RECOMMENDATIONS
 
* The overall prevalence of hypertension is 5.92% in males 5.85% in females.
* Initial mass screening programs for the whole population with the help of government, non-Government agencies should be carried out to find out the prevalence of hypertension.
* People from higher socioeconomic status and higher educational status should be kept under surveillance for detection of hypertension.
* Hypertension is one of the important risk factors for coronary heart disease, which is one of the important leading causes of death. So a national programme for detection, treatment follow-up, education and prevention of cardiovascular disease should be started as early as possible.
 
  REFERENCES
 
1. The World Health Report 1998 - WHO Geneva, 1998.
2. Gupta Anmol K. et al: "Prevalence And Awareness Of Hypertension In A Closed Community Of North Indian Town". Indian Journal of Community Medicine, 1998; Vol. XXIII No. 3: 123 -126.
3. Community Prevention And Control Of Cardiovascular Diseases - Report of WHO Expert Committee. Technical Report Series No. 732 WHO Geneva, 1986.
4. WHO Expert Committee on Hypertension Control. Technical Report Series No. 862, WHO Geneva, 1996.
5. Gupta S. P. et al: "Epidemiology Of Hypertension - Based On Total Community Survey In The Rural Population Of Haryana". Indian Heart Journal, 1977; 29 (2): 53 -62.
6. Gupta S. P. et al: "Edidemiology of Hypertension - Based on Total Community Survey in the Urban Population of Haryana". Indian Heart Journal, 1978; 30 (6): 315 - 322.
7. Wasir H. S. et al: "An Epidemiological Study Of Hypertension In An Indian Rural Community" Indian Heart Journal, 1983; 35: 294.
8. ICMR Bulletin: "Progress In Cardiovascular Disease Research In India During Last Two Decades 1971 -1992". Vol. 22 (4): 1992.
9. Joshi P. P. et al: "Blood Pressure Trends And Life Style Risk Factors In Rural India". JAPI, 1993; 41(9): 579 -581.
10. Goel N. K. and Kaur P.: "Role Of Various Risk Factors In The Epidemiology Of Hypertension In A Rural Community Of Varanasi District ". Indian Journal of Public Health, 1996; 40 (3): 71 -76.
11. Sharma B. K. et al: Hypertension among the industrial workers and professional classes in Ludhiana, Punjab. Indian Heart Journal, 1985; 37: 380 -385.
12. Gupta R. et al : Correlation of smoking, blood pressure levels and hypertension prevalence in urban and rural subjects. JAPI 1997; 45; 919-922.