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. 2015 Jul 24;10(7):e0133570. doi: 10.1371/journal.pone.0133570

Table 3. Characteristics of profiles in hardcore smokers and non-hardcore smokers.

Hardcore smokers (N = 510) Non-hardcore smokers (N = 338)
Receptive (n = 186) Ambivalent (n = 300) Resistant (n = 24) Receptive (n = 101) Ambivalent (n = 184) Disengaged (n = 53)
Demographics
Female, N (%) 53.8 a 48.0 a 54.2 a 59.4 a 53.8 a 58.5 a
Age (SD) 52.3 (7.3) a 52.9 (7.2) a 54.3 (6.5) a 51.3 (6.9) a 51.2 (8.1) a 53.9 (7.6) a
Socioeconomic status
Low (%) 51.6 a 59.7 a 54.2 a 59.4 a 53.3 a 50.9 a
High (%) 48.4 a 40.3 a 45.8 a 40.6 a 46.7 a 49.1 a
Smoking history
Age of smoking onset (SD) 16.3 (4.1) a 16.3 (5.6) a 16.2 (11.0) a 16.2 (3.8) a 17.7 (5.4) b 17.3 (4.9) ab
Years smoked in life (SD) 34.9 (8.5) a 35.5 (8.2) a 37.0 (9.8) a 31.4 (9.1) a 30.9 (10.4) a 31.8 (11.3) a
Nicotine dependence
FTND (SD) 5.54 (1.81) a 5.09 (1.77) b 5.54 (2.02) ab 3.98 (2.37) a 3.02 (2.23) b 1.85(2.14) c
Cigarettes per day (SD) 22.0 (6.6) a 20.8 (6.6) a 19.9 (6.4) a 13.3 (11.0) a 11.1 (7.2) b 7.1 (4.4) c
Intention to quit (%)
Within 1 year 21.5 a 6.3 b 0 b 38.6 a 19.0 b 9.4 c
Within 5 years 25.8 a 14.0 b 8.3 b 19.8 a 11.4 b 5.7 c
Not quitting, but smoking less 31.2 a 34.0 b 20.8 b 28.7 a 38.6 b 32.1 c
Not quitting, not smoking less 21.5 a 45.7 b 70.8 b 12.9 a 31.0 b 52.8 c
Smoking-related beliefs
Quitting self-efficacy (SD) 3.85 (1.07) a 3.80 (1.06) a 3.63 (1.65) a 4.06 (.91) a 4.16 (.85) a 4.78 (1.27) b
Pros of smoking (SD) 3.09 (.57) a 3.75 (.58) b 4.41 (.77) c 3.12 (.73) a 3.44 (.64) b 3.37 (.87) b
Cons of smoking (SD) 5.16 (.45) a 4.20 (.45) b 2.70 (.42) c 5.25 (.44) a 4.24 (.42) b 3.04 (.45) c
Pros of quitting (SD) 5.25 (.58) a 4.26 (.58) b 2.74 (.64) c 5.49 (.47) a 4.36 (.43) b 3.23 (.50) c
Cons of quitting (SD) 3.29 (.61) a 3.71 (.62) b 3.62 (1.03) b 3.23 (.72) a 3.47 (.62) b 3.07 (.87) a

Note: Profiles were based on pros and cons scales. If profiles within a sample share a superscript character, they are not significantly different from each other (p < .05).