Skip to main content

Table 1 Demographic/baseline characteristics of participants in the SMS USA study (overall and by intervention assignment)

From: Examining the influence of a text message-based sleep and physical activity intervention among young adult smokers in the United States

 

Overall (n = 116)

Smoking cessation group (n = 72)

Sleep/activity group (n = 44)

P-value

Demographic/baseline characteristics

  

N (%)

  

Sex

 Male

61 (52.6)

40 (55.6)

21 (47.7)

0.45

 Female

55 (47.4)

32 (44.4)

23 (52.3)

Race

 White or Caucasian

78 (67.2)

47 (65.3)

31 (70.5)

0.68

 Other

38 (32.8)

25 (34.7)

13 (29.5)

Educational attainment

 High school or less/post-sec non-completer

24 (20.7)

13 (18.1)

11 (25.0)

0.48

 Currently enrolled in post-sec/post-sec completer

92 (79.3)

59 (81.9)

33 (75.0)

 

Median (25 %, 75 % quartile)

 

Daily text messaging usage

50 (20, 100)

50 (20, 100)

43.5 (18.5, 100)

0.46

  

Mean (SD)

  

Sleep quantity on work/school nights (hours)

6.19 (1.45)

6.42 (1.44)

5.82 (1.40)

0.03*

Sleep quantity on non-work/non-school nights (hours)

8.01 (2.11)

8.32 (2.05)

7.50 (2.14)

0.04*

Sleep quality score

17.20 (5.21)

17.00 (5.50)

17.52 (4.74)

0.60

Physical activity (hours/week)

5.70 (6.58)

6.38 (7.41)

4.59 (4.82)

0.16

  1. *Significant at p < 0.05