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Table 1 Demographic and clinical data of the study population

From: CT genotype of 5,10-methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism is protector factor of major depressive disorder in the Tunisian population: a case control study

  Patients Controls p
Gender: male/female (ratio) 91/117 91/96 0.328
Age (years) 44.11 ± 13.518 38.53 ± 13.222 <0.001
Age group
 Youth (<20 years) 11 (5.3 %) 17 (9 %) 0.021
 Adult (20 ≤ years < 50) 122 (58.6 %) 125 (66.9 %)  
 Old (≤50 years) 75 (36.1 %) 45 (24.1 %)  
BMI (kg/m2) 27.098 ± 5.60 26.962 ± 4.58 0.793
Obesity
 Normal 72 (34.6 %) 71 (38 %) 0.361
 Over weight 75 (36.1 %) 73 (39 %)  
 Obese 61 (29.3 %) 43 (23 %)  
Cigarette smoking    0.93
 Smokers 64 (32 %) 59 (32 %)  
 Non-smokers 136 (68 %) 128 (68 %)  
Alcoholic beverages    0.807
 Consumers 42 (20.2 %) 40 (21.4 %)  
 Non-consumers 164 (78.8 %) 147 (78.6)  
Drugs use
 Yes 17 (8.2 %) 8 (4.3 %) 0.112
 No 191 (91.8 %) 179 (95.7 %)  
Treatments
 No 26
 Tricyclic antidepressants (TCA) 42
 SIRS 94
 Atypique 16
 SIRS + TCA 6