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Table 3 Comparisons of paraoxonase activity between patients and control group by demographic and clinical variables

From: Lower paraoxonase 1 activity in Tunisian bipolar I patients

Variables Bipolar I patients (n = 66) Control subjects (n = 64) P value
  N Mean ± SD N Mean ± SD  
Gender      
Male 46 170 ± 125 34 232 ± 95 0.01
Female 20 180 ± 121 30 298 ± 75* < 0.001
Age, years      
< 25 11 124 ± 82 24 254 ± 87 < 0.001
25-60 51 189 ± 131 32 266 ± 96 0.003
≥60 4 107 ± 51 8 274 ± 97 0.003
BMI, kg/m2      
< 25 28 162 ± 119 39 257 ± 101 0.001
25-30 22 186 ± 135 16 284 ± 86 0.008
≥30 16 175 ± 117 9 251 ± 52 0.04
Cigarette smoking      
Yes 34 180 ± 122 28 235 ± 92 0.04
No 32 167 ± 125 36 284 ± 87* < 0.001
Alcoholic beverages      
Yes 7 236 ± 121 14 243 ± 102 0.89
No 59 166 ± 122 50 268 ± 89 2.10 × 106
Episode of illness      
Depressive 6 254 ± 174    
Euthymic 42 177 ± 123    
Manic 18 137 ± 94    
Treatment      
Lithium (A) 5 73 ± 45    
Carbamazepine (B) 8 175 ± 114    
Valproic acid 31 180 ± 121    
All mood stabilisers 44 167 ± 117    
Antipsychotics 22 187 ± 137    
  1. *A vs B: P < 0.05.
  2. BMI = body mass index.