FTND
Mean (SD)

HONC
Mean (SD)

NDSS
Mean (SD)

Cotinine (µg/L)

Current smokers

Morning type
Intermediate type
Evening type

3.04 (2.42)
2.84 (2.55)
3.54 (3.00)

5.24 (2.92)
5.41 (2.89)
5.98 (3.08)

17.2 (7.44)
16.6 (8.44)
19.3 (10.43)

146 (97.3)
144 (97.9)
161 (107)

Former smokers

Morning type
Intermediate type
Evening type

2.13 (2.26)
2.04 (2.20)
2.64 (2.76)

3.49 (2.87)
3.69 (2.93)
4.48 (3.29)

16.8 (7.69)
16.8 (8.02)
19.1 (9.80)

n.a.*
n.a.
n.a.

*Cotinine information available only on current smokers
FTND=the Fagerström Test for Nicotine Dependence, HONC=the Hooked on Nicotine Checklist, NDSS=the Nicotine Dependence Syndrome Scale
Table 4: Means (and standard deviations) of the FTND, the HONC, the NDSS and plasma cotinine levels (μg/L) (cotinine information available only on current smokers) in three diurnal type groups among current smokers (n=712) and former smokers (n=633) in DILGOM sub-sample of the FINRISK study.