Good and Bad Sleep in Childhood: A Questionnaire Survey amongst School Children in Southern Italy

Table 1

Demographic characteristics of the sample.

	N	M	F	6–8 years	9–12 years
Total sample	482	240*	240*	164	318
S. Nicola La Strada	117	52	65	26	91
Naples	83	40	43	31	52
Pomigliano d’Arco	282	148	132	107	175

*Summing up the number of subjects in the males and females groups does not yield the total sample number since two children did not report their sex on the questionnaire.