. Author manuscript; available in PMC: 2014 Mar 11.

Published in final edited form as: Int J Methods Psychiatr Res. 2013 Mar 11;22(1):27–35. doi: 10.1002/mpr.1380

Table 1.

Demographic characteristics and anxiety subtype levels of the TRAILS sample at T1, T2 and T3

Assessment wave	T1 (2001–2002)	T2 (2003–2004)	T3 (2005–2007)
Age, mean (SD); range	11.1 (0.56); 10.1–12.6 years	13.6 (0.53); 12.2–15.2 years	16.3 (0.71); 14.7–18.7 years
Anxiety, mean (SD), range
GAD	0.65 (0.42), 0–2.0	0.48 (0.40), 0–2.0	0.51 (0.40), 0–2.0
OCD	0.57 (0.40), 0–2.0	0.33 (0.33), 0–2.0	0.28 (0.33), 0–2.0
PD	0.41 (0.33), 0–2.0	0.29 (0.30), 0–2.0	0.28 (0.28), 0–2.0
SA	0.36 (0.32), 0–1.7	0.23 (0.27), 0–1.6	0.22 (0.25), 0–1.4
SP	0.75 (0.39), 0–2.0	0.66 (0.43), 0–2.0	0.70 (0.45), 0–2.0

Note: SD, standard deviation; GAD, generalized anxiety disorder; OCD, obsessive-compulsive disorder; PD, panic disorder; SA, separation anxiety disorder; SP, social phobia.