Skip to main content

Table 1 Baseline Characteristics

From: Methylphenidate for treating tobacco dependence in non-attention deficit hyperactivity disorder smokers: A pilot randomized placebo-controlled trial

 

Placebo

OROS-MPH

Characteristic

N = 40

N = 40

Age

  

   mean ± SD

38.0 ± 11.9

35.6 ± 11.0

   median (range)

38 (20 to 69)

34 (19 to 57)

Gender, n (%)

  

   Male

14 (35)

20 (50)

   Female

26 (65)

20 (50)

Race, n (%)

  

   White, non-Hispanic

38 (95)

37 (92)

   Other*

2 (5)

3 (8)

Marital Status, n (%)

  

   Never married

8 (20)

13 (32)

   Separated/divorced

11 (28)

11 (28)

   Married/living as married

20 (50)

14 (40)

   Widowed

1 (2)

0 (0)

Level of education, n (%)

  

   High school graduate or less

9 (22)

12 (30)

   Some college or technical school

24 (60)

25 (62)

   4-year college degree or more

7 (18)

3 (8)

Cigarettes per day

  

   mean ± SD

20.8 ± 8.2

19.7 ± 7.4

   median (range)

20 (10, 45)

20 (10, 40)

Number of years smoked

  

   mean ± SD

18.8 ± 10.5

19.0 ± 10.4

   median (range)

18 (3, 40)

20 (3, 40)

Fagerström Test for Nicotine Dependence

  

   mean ± SD

5.8 ± 1.8

5.2 ± 2.2

   median (range)

6 (2, 10)

6 (1, 9)

Contemplation ladder

  

   mean ± SD

8.5 ± 1.3

8.8 ± 1.4

   median (range)

9 (6, 10)

9 (6, 10)

Previous stop attempts, n (%)

  

   None

6 (15)

6 (15)

   1 to 2

17 (42)

15 (38)

   3 to 5

11 (28)

13 (32)

   6 or more

6 (15)

6 (15)

Other tobacco users in the household, n (%)

  

   No

27 (68)

26 (65)

   Yes

13 (32)

14 (35)

  1. * These include: American Indian/Alaska native (n = 1), Asian (n = 1), Black (n = 2) and White Hispanic (n = 1).