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. Author manuscript; available in PMC: 2019 Jan 1.
Published in final edited form as: Addict Biol. 2017 Apr 21;23(1):291–303. doi: 10.1111/adb.12508

Table 1.

Participant Characteristics at baseline.

Study STRATUS EU (EFC4474; n=783) STRATUS US (EFC4964; n=784) META (EFC5794; n=530) Total (n=2097)
Frequency (n)
Sex (Female) 53.9 (422) 49.2 (386) 54.7 (290) 52.4 (1098)
Race (Caucasian) 97.7 (765) 87.4 (685) 89.4 (474) 91.7 (1924)
Mean (SD)
Age (years) 42.43 (10.51) 42.28 (11.35) 44.61 (11.78)a 42.93 (11.20)
BMI 24.99 (4.48) 27.79 (5.76)* 27.73 (5.41)* 26.73 (5.39)
Weight (kg) 72.58 (15.67) 81.36 (19.30)* 80.70 (18.29)* 77.91 (18.23)
Cigarettes (CPD) 23.56 (9.34) 23.27 (10.15) 22.51 (10.06) 23.18 (9.83)
Expired CO (ppm) 23.38 (12.86) 21.68 (11.22)* 21.75 (11.24)* 22.33 (11.88)
FTND 5.55 (2.15) 5.43 (2.17) 5.47 (2.07) 5.49 (2.14)
HADS Depression 2.06 (2.12) 2.33 (2.25)* - - 2.20 (2.19)
HADS Anxiety 4.61 (2.97) 4.90 (2.86)* - - 4.76 (2.92)

Note:

*

Significant compared to STRATUS EU at the p < 0.05 level.

a

Significant compared to STRATUS EU and STRATUS US, both p’s < .05. CPD = cigarettes per day.

BMI = body mass index; CPD = cigarettes per day; FTND = Fagerström Test for Nicotine Dependence; HADS = The Hospital Anxiety and Depression Scale.