Occupational noise and hypertension in Southern Chinese workers: a large occupational population-based study

BMC Public Health

Table 2 Relationship between blood pressure and occupational exposure status, and classification of occupational noise exposure combined with BHFTA

	SBP, mmHg						DBP, mmHg
	Model 1			Model 2			Model 1			Model 2
	β	SEM	P	β	SEM	P	β	SEM	P	β	SEM	P
Occupational noise status
Non–exposed	ref			ref			ref			ref
Exposed	1.30	0.12	< 0.001	1.63	0.12	< 0.001	0.95	0.08	< 0.001	1.32	0.08	< 0.001
Classification of occupational noise exposure combined with BHFTA
Occupational noise non–exposed with BHFTA normal	ref			ref			ref			ref
Occupational noise exposed with BHFTA normal	0.97	0.12	< 0.001	1.61	0.12	< 0.001	0.74	0.08	< 0.001	1.30	0.08	< 0.001
Occupational noise exposed with BHFTA elevated	4.20	0.13	< 0.001	1.77	0.13	< 0.001	2.77	0.09	< 0.001	1.41	0.09	< 0.001

Model 1: Unadjusted
Model 2: Adjusted for sex, age, years of occupational hazard exposure, high temperature exposure (Non-exposed, exposed), benzene exposure (Non-exposed, exposed), Pb exposure (Non-exposed, exposed), dust exposure (Non-exposed, exposed), classification of industry (Manufacturing, Non–manufacturing)
SBP: systolic blood pressure
DBP: diastolic blood pressure
β: regression coefficient
SEM: standard error of the mean

ISSN: 1471-2458