Table 2.

Shiffman–Jarvik Withdrawal Scale, Urge to Smoke, and CO measures on male and female smokers in the two test sessions

	< 1 h Abstinence		> 13 h Abstinence
	Presmoking	Postsmoking	Presmoking	Postsmoking
Males
Craving	4.3 (1.2)	3.9 (1.1)	5.9 (1.0)	4.2 (1.0)
Psychological	2.6 (0.6)	2.9 (0.5)	3.5 (1.0)	3.0 (0.7)
Physiological	1.7 (.9)	1.6 (0.7)	2.1 (1.1)	1.8 (.9)
Stimulus	2.1 (1.2)	2.9 (1.2)	2.6 (1.2)	3.1 (1.4)
Appetite	3.8 (1.1)	4.0 (1.1)	4.2 (1.0)	4.3 (.9)
Urge to Smoke scale	3.4 (1.5)	1.9 (1.4)	5.6 (1.3)	2.3 (1.3)
CO	22.1 (10.1)	24.59 (11.9)	7.0 (4.9)	13.6 (7.0)
Females
Craving	3.7 (.9)	3.9 (1.2)	6.2 (1.0)	4.3 (1.2)
Psychological	2.5 (.6)	2.8 (0.8)	4.3 (1.4)	2.9 (1.1)
Physiological	1.5 (0.6)	1.4 (0.6)	2.5 (1.4)	1.7 (.9)
Stimulation	2.5 (1.3)	3.1 (1.3)	2.6 (1.4)	3.4 (1.9)
Appetite	3.4 (1.0)	4.1 (1.1)	4.1 (1.3)	4.2 (1.2)
Urge to Smoke scale	2.9 (1.5)	1.6 (.8)	5.5 (1.7)	2.3 (1.4)
CO	21.6 (8.9)	23.3 (7.4)	6 (4.2)	12.9 (4.6)

Note. Values are means and standard deviations (in parentheses).