Table 2.

Most frequent diagnosis groups

Diagnosis	N	Age years	Recruitment period	Criteria	Outcome measures (range)	Previous analysis
Depression	135	17-70	1999-2005*	Depressed mood plus ≥2 of 6 defined core symptoms of depression; symptom duration ≥ 6 months; CES-D ≥ 24 points	CES-D (0-60)	[24]
Asthma	90	2-70	1999-2005	Physician’s diagnosis (ICD-10 J45)	Average Asthma Severity (NRS, 0-10)	[28]
Low Back Pain	75	17-75	1999-2005	Low back pain of ≥ 6 week duration. Exclusion: previous back surgery, 11 specific diagnoses	HFAQ (0-100), LBPRS (0-100),	[26]
Anxiety Disorders	64	17-75	1999-2005	Physician’s diagnosis (ICD-10 F40-F42 or F43.1)	Anxiety Severity (NRS, 0-10)	[27]
ADHD Symptoms	61	3-16	2001-2005	Physician’s diagnosis (ICD-10 F90), symptom duration ≥ 6 months	FBB-HKS Total score (0-3)	[29]
Migraine	45	17-75	1999-2005	Criteria of the International Headache Society [50]	Average Migraine Severity (NRS, 0-10)	[30]

CES-D Center for Epidemiological Studies Depression Scale, German version, ICD-10 International Classification of Diseases, Tenth Revision. *Recruitment period for previously published 4-year analysis [24]: 1998-2001. NRS Numerical rating scales [32], HFAQ, Hanover Functional Ability Questionnaire [51], LBPRS Low Back Pain Rating Scale Pain Score [52], ADHD Attention Deficit Hyperactivity Disorder, FBB-HKS Fremdbeurteilungsbogen für Hyperkinetische Störungen (parents’ questionnaire for ADHD core symptoms) [53,54].