The burden of risk factors for non-communicable disease in rural Bihar, India: a comparative study with national health surveys

Table 2 Age and sex-specific prevalence of hypertension in the NCDRI study and the NFHS-5 survey

Women
Age (years)	NCDRI Study		NFHS-5 Survey
	N	Hypertension (%)	N	Hypertension (%)
15–19			9338	3.2
20–24			7564	4.7
25–29			6293	6
30–34			5250	8.7
35–39	197	14.7	4887	12.2
40–44	168	17.9	3845	17.5
45–49	147	25.2	3800	23.1
50–54	162	24.7
55–59	110	34.5
60–64	99	38.4
65–70	122	41.8
Overall, not standardized	1005	27.3	40,978	8.9
WHO age standardized at 35–49 years (95%CI)		19.0(15.4–23.2)		17.3(16.6–18)
Men
Age (years)	NCDRI Study		NFHS-5 Survey
	N	Hypertension (%)	N	Hypertension (%)
15–19			1038	2.6
20–24			705	7.7
25–29			567	8.4
30–34			494	12.6
35–39	112	20.5	518	15.2
40–44	147	17.7	396	19.1
45–49	162	28.4	434	25.5
50–54	170	26.5	329	28.5
55–59	119	35.3
60–64	130	29.2
65–70	185	37.3
Overall, not standardized	1025	27.6	4481	12.3
WHO age standardized at 35–54 years (95%CI)		22.9(19.2–27.3)		21.5(19.4–23.9)

Hypertension was defined as a SBP ≥ 140 mmHg or DBP ≥ 90 mmHg at baseline or participants reported receiving blood pressure-lowering medication. Hypertension estimates from the NCDRI Study were adjusted for age and sex, where appropriate. Hypertension estimates from the Bihar State NFHS-5 have been previously published [21]. The age-standardized prevalence estimates from the NCDRI Study and the NFHS-5 Survey were only estimated for overlapping age groups, such that hypertension estimates were calculated for women aged 35–49 and men aged 35–54 years. The age-standardized prevalence estimates were generated by weighting these estimates to the age distribution of the WHO’s standard population [22]

ISSN: 1471-2458