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Table 1 General characteristics of the study population

From: Shift work and the risk of cardiovascular disease among workers in cocoa processing company, Tema

Parameters Shift workers (N = 113) Non-shift workers (N = 87) p value
Socio-demographic parameters
 Smokers 12 (10.62) 10 (11.49) 0.083
 Alcoholics 38 (33.63) 24 (27.59) 0.118
 Family history of diabetes 42 (37.17) 35 (40.23) 0.204
 Family history of hypertension 37 (32.74) 41 (47.13) 0.061
Clinical parameters
 Age (years) 42.0 ± 8.2 40.3 ± 11.5 0.3310
 SBP (mmHg) 122.3 ± 20.3 118.8 ± 20.1 0.0760
 DBP (mmHg) 81.8 ± 13.2 81.2 ± 10.7 0.5290
 BMI (kg/m2) 26.9 ± 4.6 25.2 ± 3.3 0.0130*
 WHR (ratio) 0.91 ± 0.12 0.88 ± 0.07 0.3030
 Period of shift (years) 13.2 ± 7.8
Biochemical parameters
 FBG (mmol/L) 5.9 ± 1.8 5.3 ± 0.8 0.0001**
 HbA1c (%) 4.9 ± 0.9 4.2 ± 0.8 0.0001**
 TC (mmol/L) 5.9 ± 1.3 5.2 ± 1.7 0.0020*
 TG (mmol/L) 1.3 ± 0.8 1.1 ± 0.6 0.0015*
 HDL (mmol/L) 1.6 ± 0.5 1.5 ± 0.6 0.0970
 LDL (mmol/L) 3.6 ± 0.9 3.2 ± 1.3 0.0040*
 VLDL (mmol/L) 0.6 ± 0.4 0.5 ± 0.3 0.0140*
 Coronary risk (ratio) 4.0 ± 1.0 3.8 ± 1.1 0.3770
 hs-CRP (U/L) 2.5 ± 1.1 1.8 ± 1.1 0.0001**
  1. The table shows the results for the general characteristics of the study population
  2. Continuous data were presented as mean ± standard deviation
  3. Categorical data are presented as frequencies with percentages in parenthesis
  4. HbA1c glycated haemoglobin, hs-CRP highly sensitive C-reactive protein, TC total cholesterol, TG triglyceride, HDL high density lipoprotein, LDL low density lipoprotein, VLDL very low density lipoproteins, SBP systolic blood pressure, DBP diastolic blood pressure, WHR waist hip ratio, FBG fasting blood glucose, BMI body mass index
  5. * Mean difference is significant (p < 0.05)
  6. ** Mean difference is highly significant (p < 0.0001)