Cross-section analysis of coal workers’ pneumoconiosis and higher brachial-ankle pulse wave velocity within Kailuan study

Table 1 Demographic and clinical characteristics among CWP cases and controls

	CPW	Controls	P
N	1007	1007
Age (Years)	65.15 ± 8.86	65.07 ± 8.82	0.853
Current smoking, n (%)	339 (33.7)	469(46.6)	<0.001
Body Mass Index (kg/m²)	25.41 ± 3.46	25.10 ± 3.97	0.134
Systolic Blood Pressure (mmHg)	138.78 ± 18.78	138.23 ± 18.94	0.508
Diastolic Blood Pressure (mmHg)	85.63 ± 10.91	84.84 ± 11.04	0.108
Heart rate (beats/min)	75.62 ± 16.39	71.31 ± 11.28	<0.001
Fasting Plasma Glucose (mmol/L)	5.89 ± 1.74	5.68 ± 1.39	0.003
Total Cholesterol (mmol/L)	4.91 ± 0.98	5.07 ± 1.00	<0.001
Low-Density Lipoprotein-Cholesterol (mmol/L)	2.64 ± 0.93	2.67 ± 1.00	0.640
High-Density Lipoprotein - Cholesterol (mmol/L)	1.52 ± 0.48	1.60 ± 1.06	0.033
Triglycerides (mmol/L)^a	1.35 (1.02,1.81)	1.20 (0.86,1.70)	<0.001
Hypertension^b, n (%)	612 (60.8)	612(60.8)	0.646
Diabetes mellitus^c, n (%)	141(14.0)	111(11.0)	0.051
Stage
I	980 (97.3)	-
II	22 (2.2)	-
III	5 (0.5)	-
Duration of silica dust exposure (years)
< 20	194 (19.3)
20 ~ 29	447 (44.4)
≥ 30	366 (36.3)
Cumulative silica dust exposure (mg/m³-y)	1059.02 ± 458	-
baPWV cm/s	1762.0 ± 355	1718.6 ± 354	0.006
baPWV ≥ 1687 cm/s, n (%)	533 (52.9)	478(47.5)	0.016

CWP indicates coal workers’ pneumoconiosis; baPWV, brachial-ankle pulse wave velocity
^aStudent’s t-test was used after log transformation
^bBe defined as having the history of hypertension or SBP ≥ 140 mmHg or DBP ≥ 90 mmHg measured at the examination
^cBe defined as having the history of diabetes mellitus or fasting blood glucose ≥ 7.0 mmol/L measured at the examination

ISSN: 1471-2458