Body mass index, blood pressure, and glucose and lipid metabolism among permanent and fixed-term workers in the manufacturing industry: a cross-sectional study

Table 3 Comparison of anthropometric data, blood pressure, and metabolism levels of permanent and fixed-term workers

Variables	Permanent		Fixed-term		p-value
	(n = 1,363)		(n = 338)
Anthropometric data (mean, SD)
Height (cm)	172.5	(0.2)	171.8	(0.3)	0.056
Weight (kg)	68.2	(0.3)	66.2	(0.6)	0.002	*
Body mass index (kg/m²)	22.9	(0.1)	22.4	(0.2)	0.012	**
Obese (BMI ≥ 25.0) n(%)	292	(21.4%)	61	(18.1%)	0.340
Lean (BMI < 18.5) n(%)	55	(4.0%)	28	(8.3%)	0.003	*
Blood pressure (mean, SD)
Systolic (mmHg)	122.4	(0.4)	124.4	(0.7)	0.013	*
Diastolic (mmHg)	69.5	(0.3)	72.1	(0.6)	<0.001	**
Lipid metabolism (mean, SD)
LDL-cholesterol (mg/dL)	113.1	(0.8)	110.3	(1.6)	0.124
HDL-cholesterol (mg/dL)	63.7	(0.4)	62.6	(0.8)	0.195
Triglyceride (mg/dL)	88.2	(1.8)	99.1	(3.5)	0.006	**
Glucose metabolism (mean, SD)
Fasting plasma glucose(mg/dL)	88.1	(0.3)	90.2	(0.8)	0.012	*
HbA1c (%)	4.8	(0.01)	5.0	(0.02)	<0.001	**

SD: standard deviation, BMI: body mass index.
Analysis of covariance was used to compare the mean of each data between permanent and fixed-term workers.
Age adjusted least square mean was shown in the Table. *p < 0.05 **p < 0.01.
Cochran-Mantel-Haenszel test was used to compare the proportion of BMI categories between permanent and fixed-term workers. **p < 0.01.

ISSN: 1471-2458