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

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

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