Table 1 Demographics for each group separately and for all smoker groups combined.

From: Smokers show increased fear responses towards safety signals during fear generalization, independent from acute smoking

 

Mean (SD)

Non-smokers

Group 1

Mean (SD)

Smokers

Group 2

Mean (SD)

Smokers

Group 3

Mean (SD)

Smokers

Group 4

Mean (SD)

Smokers

(Groups 2, 3 & 4)

Sample size

64

46

46

46

138

Age [years]

29.38 (10.47)

27.96 (8.49)

30.2 (10)

30.37 (9.59)

29.51 (9.44)

Gender

Females: 43

Males: 21

Females: 31

Males: 15

Females: 27

Males: 19

Females: 24

Males: 22

Females: 82

Males: 56

Coffee consumption [cups/day]

1.198 (1.07)

1.22 (1.21)

1.34 (1.05)

1.7 (1.358)

1.42 (1.22)

Alcohol consumption [drinks/week]

1.43 (1.98)

2.58 (2.72)

2.7 (2.69)

3.28 (3.24)

2.85 (2.91)

Fagerström [sum score]

–

1.96 (1.88)

3.3 (2.51)

2.61 (2.35)

2.62 (2.33)

STAI-T [sum score]

43.14 (5.68)

44.59 (9.39)

44.80 (6.05)

44.96 (6.79)

44.78 (7.55)

  1. Group 1 contains only non-smokers, group 2 contains smokers that took a smoking break of 6 h after fear acquisition on day 1, group 3 contains smokers that smoked a cigarette directly after fear acquisition on day 1 and group 4 contains smokers that smoked a cigarette directly before fear acquisition on day 1. The last column contains all smokers from groups 2, 3 and 4 combined.
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