High-frequency hearing loss, occupational noise exposure and hypertension: a cross-sectional study in male workers

Table 3 Prevalence of hypertension and age-adjusted ORs (95% CIs) by study groups

Groups	No.	Resting SBP	Resting DBP	Hypertension No. (%)	OR (95%CI)
		Mean ± SD (mm Hg)	Mean ± SD (mm Hg)
Low-hearing-loss group	274	123.2 ± 11.6	82.1 ± 8.8	91 (33.2)	1.00
Median-hearing-loss group	302	122.7 ± 12.4	82.9 ± 8.8	127 (42.1)^c	1.45 (1.03-2.04)
High-hearing-loss group	214	122.9 ± 12.7	83.0 ± 9.1	93 (43.5)^c	1.50 (1.03-2.18)
		p = 0.800^a	p = 0.444^a	p = 0.034^b

95%CI = 95% confidence interval; DBP = diastolic blood pressure; OR = odds ratio; SBP = systolic blood pressure; SD = standard deviation.
^a Kruskal-Wallis test of the difference between three groups. ^b Chi-square test of the difference between three groups. ^c Chi-square test for a significant difference (p < 0.05) compared with the low-hearing-loss group.

ISSN: 1476-069X