Table 9.

Comparisons of Internal consistency (alpha values) obtained in the Maltese study with the original and others published in different languages.

	General Overuse	General Harm	Specific Necessity	Specific Concerns
Developer of BMQ (Horne et al.,1999)a	0.60-0.80	0.47-0.83	0.55-0.86	0.63-0.80
Portuguese (Salgado et al., 2013)b	-	-	0.76	0.67
German (Mahler et al., 2010)c	0.80	0.79	0.83	0.83
Italian (Argentero et al., 2010)d	-	-	0.78	0.72
Spanish (Tordera et al., 2009)e	0.70	0.68	0.83	0.72
Spanish (De las Cuevas et al.,2011)f	0.75▲		0.80	0.72
Maltese version of BMQg	0.48	0.56	0.73	0.66

^aThe original BMQ was developed using six chronic illness groups. Ranges of alpha are shown for all groups involved in the study.

^bPortuguese version analysed the BMQ-Specific for the general population of medicine users.

^cGerman version analysed the BMQ-General and BMQ-Specific across patients with a variety of chronic illnesses.

^dItalian version analysed BMQ-Specific in four chronic illness groups (asthma, diabetes, cardiovascular and depression).

^eSpanish version analysed BMQ-General and BMQ-Specific for a sample of asthmatic patients.

^fSpanish version analysed BMQ-General and BMQ-Specific in a sample of psychiatric patients and undergraduate students reading medicine and psychology (patients are tabulated).

^gMaltese version analysis was carried out using BMQ-General and BMQ-specific on four chronic illness groups (asthma, diabetes, cardiovascular and depression).

^▲General items in the patient population gave a mono-factorial solution, therefore alpha was calculated on all 8-items together