. 2015 Aug 7;18(5):950–958. doi: 10.1093/ntr/ntv149

Table 2.

Frequency of Self-Reported Physical Health Symptoms in the Last 12 Months in Adolescence (Wave 5) and in Early Adulthood (Wave 6) by Smoking and DSM-IV Nicotine Dependence at Wave 5 ( N = 908)

Health symptoms		Wave 5 health symptoms					Wave 6 health symptoms
		Smoking and nicotine dependence at wave 5					Smoking and nicotine dependence at wave 5
		Total ( N = 908)	Did not smoke ( N = 530)	Smoked not ND ( N = 259)	Smoked ND ( N = 119)	Likelihood ratio test X² (2)	Total ( N = 908)	Did not smoke ( N = 530)	Smoked not ND ( N = 259)	Smoked ND ( N = 119)	Likelihood ratio test X² (2)
Headache	Mean ( SD )	8.9 (19.5)	8.9 (18.8)	8.9 (21.0)	9.3 (18.9)	0.0	5.2 (15.8)	3.8 ^a (12.1)	6.1 ^b (18.2)	9.0 ^b (22.9)	16.0***
Stomach ache	Mean ( SD )	6.2 (13.0)	5.7 ^a (12.3)	6.3 (13.1)	8.0 ^b (15.6)	6.0*	5.4 (14.2)	4.6 ^a (12.6)	4.6 ^a (9.9)	10.5 ^b (24.2)	26.0***
Sore throat or cough	Mean ( SD )	4.6 (10.7)	4.6 (10.9)	3.9 ^a (7.2)	6.0 ^b (15.1)	8.0*	3.3 (7.4)	3.3 (7.6)	3.1 (7.4)	3.6 (6.9)	0.0
Muscle or joint pain	Mean ( SD )	7.0 (20.5)	7.8 (22.1)	5.7 (17.2)	6.5 (19.6)	4.0	6.7 (17.8)	6.3 ^a (16.9)	5.5 ^a (14.2)	11.0 ^b (26.3)	10.0**
Chest pain	Mean ( SD )	2.2 (11.2)	1.4 ^a (7.2)	2.6 (13.1)	4.6 ^b (18.6)	9.32**	1.8 (9.2)	1.0 ^a (7.0)	1.8 ^a (7.8)	4.8 ^b (17.0)	21.36***
Dizziness	Mean ( SD )	1.7 (9.5)	1.7 (8.7)	1.4 (9.1)	2.4 (13.0)	1.44	1.8 (9.0)	1.4 ^a (8.0)	1.6 ^a (5.7)	3.7 ^b (16.1)	7.4*
Overall	Mean ( SD )	5.1 (8.3)	5.0 (8.0)	4.8 (8.0)	6.1 (9.9)	4.0	4.0 (7.4)	3.4 ^a (6.5)	3.8 ^a (5.9)	7.1 ^b (12.1)	32.0***

DSM-IV = Diagnostic and Statistical Manual of Mental Disorders. Weighted estimates, unweighted N s. Within a row, means with different superscript letters are statistically significantly different from each other at P < .05 within each wave.

* P < .05; ** P < .01; *** P < .001.