LNSLNS We agree unreservedly and wholeheartedly with Dr Ockel’s arguments. School is indeed an extremely relevant problem area, which can result in headaches in children and adolescents and has often been dealt with in the literature (1, 2). Scientific articles, however, whose objective is to be published, are always faced with the necessity of doing justice to the manuscript submission standards of the relevant journal, where space is often a limiting factor.

Independently of this dilemma, which is well known to many authors, something that must be borne in mind for the statistical evaluation of study data are the selection and application of adequate and appropriate methods, whose requirements may impose further restrictions on authors. By way of a conclusion, we wish to point out that a manuscript entitled “Gender-specific predictor analyses for the occurrence of recurrent headaches in German schoolchildren” (Gaßmann J, van Gessel H, Barke A, Kröner-Herwig B) was submitted for review to the journal “Cephalalgia” on 18 August 2009. In that article, we analyzed variables of the area “school” as mentioned. We showed that the presence of “learning difficulties” and “dysfunctional coping strategies” increases the probability in girls of developing recurrent headaches. In this context, the relevance of variables that concern school was confirmed at least in part in the described epidemiological longitudinal study.
DOI: 10.3238/arztebl.2010.0061b

Dipl.-Psych. Jennifer Gaßmann
Psychologische Psychotherapeutin
Abteilung für Klinische Psychologie & Psychotherapie
Georg-Elias-Müller-Institut für Psychologie
Georg-August-Universität Göttingen
Goßlerstr. 14, 37073 Göttingen, Germany
jgassma2@gwdg.de

Conflict of interest statement
The authors of both contributions declare that no conflict of interest exists according to the guidelines of the International Committee of Medical Journal Editors.
1.
Hurrelmann K, Klocke A, Melzer W, Ravens-Sieberer U: WHO-Jugendgesundheitssurvey. Konzept und ausgewählte Ergebnisse für die Bundesrepublik Deutschland. Erziehungswissenschaft 2003; 27: 79–108.
2.
Santinello M, Vieno A, De Vogli R: Primary headache in Italian early adolescents: the role of perceived teacher unfairness. Headache 2009; 49: 366–74 MEDLINE
3.
Gaßmann J, Vath N, van Gessel H, Kröner-Herwig B: Risk factors for headache in children [Riskofaktoren für Kopfschmerzen bei Kindern]. Dtsch Artzebl Int 2009; 106: 509–16 VOLLTEXT
1. Hurrelmann K, Klocke A, Melzer W, Ravens-Sieberer U: WHO-Jugendgesundheitssurvey. Konzept und ausgewählte Ergebnisse für die Bundesrepublik Deutschland. Erziehungswissenschaft 2003; 27: 79–108.
2. Santinello M, Vieno A, De Vogli R: Primary headache in Italian early adolescents: the role of perceived teacher unfairness. Headache 2009; 49: 366–74 MEDLINE
3. Gaßmann J, Vath N, van Gessel H, Kröner-Herwig B: Risk factors for headache in children [Riskofaktoren für Kopfschmerzen bei Kindern]. Dtsch Artzebl Int 2009; 106: 509–16 VOLLTEXT