Internet-based interventions for eating disorders in adults: a systematic review

BMC Psychiatry

Table 1 Assessment of methodological quality

Items	Ljotsson et al. [16]	Robinson & Serfaty [[17]	Johnston et al. [15]	Carrard et al. [12]	Sanchez-Ortiz et al. [19]	Fernandez-Aranda et al. [14]	Carrard et al. [13]	Ruwaard et al. [18]
Methodological quality
Were the eligible criteria specified?	yes	yes	yes	yes	yes	no	yes	yes
Was the method of randomization described?	yes	yes	no	yes	yes	yes	yes	yes
Were the groups similar at baseline regarding important prognostic indicators?	yes	yes	unknown	yes	yes	yes	yes	yes
Were the index and the control interventions explicitly described?	yes	yes	yes	yes	yes	yes	yes	yes
Was the outcome assessor blinded to the interventions?	Unknown	yes	Unknown	no	yes	Unknown	no	Unknown
Was the dropout rate described and were the characteristics of dropouts compared with the completers?	yes	yes	yes	yes	yes	yes	No (no comparison)	no
Was long-term follow-up in the groups comparable?	no	no	yes	yes	no	no	yes	yes
Was the timing of the outcome measurements in the groups comparable?	yes	yes	yes	yes	yes	no	yes	yes
Was the sample size of each group described by means of a power calculation?	no	yes	yes	yes	yes	no	no	yes
Did the analysis include intention-to-treat analysis?	yes	yes	no	yes	yes	Unknown	no	yes
Were point estimates and measures of variability presented for the primary outcome measures?	yes	Mean but no standard deviation	yes	yes	yes	Mean but no standard deviation	yes	yes

ISSN: 1471-244X