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Table 1 Baseline sample characteristics by sex

From: The prospective association between obesity and major depression in the general population: does single or recurrent episode matter?

N = 1094 Total Males (n = 506) Females (n = 588) χ 2
Age, mean (SD) 53.1(11.4) 53.8(11.6) 52.5(11.1)  
Marital status (% married /living together) 54.6 61.1 49.0 p < 0.05
Level of education (%)     
High 41.7 41.1 41.9 p >0.05
Middle 27.1 28.4 26.0  
Low 26.5 25.2 27.5  
Not applicable 4.7 5.0 4.6  
Frequency of exercise     
Do not exercise/hardly 10.6 12.7 8.7 p >0.05
Once per week 10.2 10.3 10.1  
Twice or more per week 79.2 76.9 81.2  
Smoking (%)     
No 76.1 74.4 77.5 p >0.05
Yes 23.9 25.6 22.5  
Obesity (BMI ≥ 30 kg/m2) (%) 16.9 15.2 18.4 p >0.05
MDD-S# (%) 12.5 10.0 14.7 p < 0.05
MDD-R# (%) 8.2 5.4 10.6 p < 0.05
  1. MDD-S/MDD-R, major depressive disorder- single/recurrent episode - Statistically significant if p < 0.05; #16 (1.5%) individuals had no information available on MDD-S/MDD-R at baseline; SD: Standard deviation.