Burden of disease resulting from chronic mountain sickness among young Chinese male immigrants in Tibet

BMC Public Health

Table 6 Separate linear regression analyses of the relationship between individual DALYs and individual variables after controlling for altitude

Variable	2009 (n = 321)			2010 (n = 315)
Variable	β	95% CI	p	β	95% CI	p
Age	0.169	(0.061, 0.277)	0.002	0.167	(0.062, 0.272)	0.002
Body mass index	0.042	(−0.067, 0.151)	0.447	0.055	(−0.052, 0.163)	0.313
Highland service years	0.177	(0.069, 0.285)	0.001	0.157	(0.051, 0.262)	0.004
Systolic blood pressure	0.139	(0.033, 0.245)	0.010	0.120	(0.015, 0.226)	0.026
Diastolic blood pressure	0.284	(0.180, 0.388)	<0.001	0.214	(0.107, 0.321)	<0.001
Heart rate	0.147	(0.040, 0.253)	0.007	0.152	(0.046, 0.258)	0.005
Smoking
No (ref.)	0.000			0.000
Yes	0.173	(0.068, 0.278)	0.001	0.143	(0.038, 0.247)	0.008
Drinking
No (ref.)	0.000			0.000
Yes	−0.014	(−0.121, 0.093)	0.794	0.037	(−0.069, 0.143)	0.490
Education
≤Elementary school(ref.)	0.000			0.000
High school	−0.029	(−0.140, 0.081)	0.605	−0.101	(−0.211, 0.008)	0.069
≥College	0.047	(−0.064, 0.157)	0.406	0.053	(−0.056, 0.163)	0.340
Occupation
Regular infantry (ref.)	0.000			0.000
Engineering and construction	0.162	(0.051, 0.273)	0.004	0.159	(0.050, 0.267)	0.004
Support	−0.125	(−0.237, -0.014)	0.028	−0.108	(−0.218, 0.001)	0.052

ref.: reference; β: regression coefficient of each variable or category; 95% CI: 95% confidence interval of each β; p: p-value of each β.

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