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Table 2 Information on smoking behaviour at study baseline

From: Smoking and alcohol, health-related quality of life and psychiatric comorbidities in Leber’s Hereditary Optic Neuropathy mutation carriers: a prospective cohort study

 

LHON patients at baseline (n = 34)

LHON patients before onset (n = 34)

Asymptomatic LHON mutation carriers (n = 37)

General population

Smoking status, n (%)

    

Ever-smokers

26 (76%)

23 (68%)

15 (41%)

 

M

22/28 (79%)

19/28 (68%)

5/7 (71%)

 

F

4/6 (67%)

4/6 (67%)

10/30 (33%)

 

Current smokers

16 (42%)

20 (59%)

12 (32%)

25%

M

14/28 (50%)

17/28 (61%)

5/7 (71%)

30%

F

2/6 (33%)

3/6 (50%)

7/30 (23%)

20%

Ex-smokers

10 (29%)

3 (9%)

3 (8%)

 

M

7/28 (25%)

2/28 (7%)

0/7 (0%)

 

F

3/6 (50%)

1/6 (12%)

3/30 (10%)

 

Never smokers

8 (24%)

11 (32%)

22 (59%)

 

M

6/28 (21%)

9/28 (32%)

2/7 (29%)

 

F

2/6 (33%)

2/6 (33%)

20/30 (67%)

 

Pack-years, for ever-smokers

    

Mean (± SD)

14.1 (± 13.0)

 

21.1 (± 14.5)

 

Range

0–42

 

0.1–102

 

FTND, for current smokers Nicotine dependence:

    

Very high

2 (15%)

 

0 (0%)

 

High

1 (8%)

 

4 (36%)

 

Moderate

2 (15%)

 

2 (18%)

 

Low

8 (62%)

 

5 (45%)

 
  1. FTND, Fagerström Test for Nicotine Dependence; SD, standard deviation