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Table 1 Characteristics of the individuals according to BMI

From: Smoking among morbidly obese patients

Variable

Total

n = 1022

Normal weight

N = 353

Overweight

n = 283

Obese

n = 82

Morbidly obese

n = 304

P

Age, years

38.3 ± 11.1

35.0 ± 10.4

40.5 ± 11.22

39.4 ± 10.5

39.9 ± 11.3

< 0.001

Males, No. (%)

524(51.38)

196 (55.8)

183 (65.1)

51 (62.2)

94 (30.9)

< 0.001

Education level, years

     

< 0.001

   Up to 8 (%)

403 (39.4)

139 (39.4)

161 (56.9)

49 (59.8)

33 (10.8)

 

   9 to 12 (%)

384 (37.5)

140 (39.7)

90 (31.8)

22 (26.8)

138 (45.3)

 

   > 12 (%)

235 (22.9)

74 (21.0)

32 (11.3)

11 (13.4)

133 (43.7)

 

BMI, kg/m2

     

< 0.001

   Mean

31.9 ± 11.427.0

22.6 ± 1.5

27.0 ± 1.3

31.9 ± 1.4

47.2 ± 8.7

 

   Median

 

22.8

26.8

31.6

45.3

 

   Min and Max

19.9 - 92.2

17.9 - 25.0

25.0 - 29.89

30.1 - 34.8

35.1 - 92.2

 

Weight, kg

     

< 0.001

   Mean

89.9 ± 32.9

65.2 ± 7.8.1

76.5 ± 9.2

90.5 ± 8.8

131.0 ± 30.1

 

   Median

79

64.0

76.0

89.5

124.0

 

   Min and Max

47-242.0

47.0-90.0

56.0-105.0

72.0-113.0

79.0-242.0

 

Smoking habit, No. (%)

     

0.078

   Non-smokers

568 (55.6)

207 (58.5)

155 (54.8)

43 (52.4)

164 (53.8)

 

   Smokers

265 (25.9)

84 (23.9)

63 (22.3)

24 (29.3)

94 (31.0)

 

   Ex-smokers

189 (18.4)

62 (17.6)

65 (23.0)

15 (18.3)

46 (15.2)

 
  1. The data are presented as the means ± standard deviation, number (percent), or median (P25-P75).
  2. P: statistical significance with Student's t-test and Pearson's chi-squared test.