Table 2 Quality assessment of studies examining the effects of iron supplementation in low birth weight infants
From: Benefits of Iron supplementation for low birth weight infants: A systematic review
Item | Was a method of randomization used? | Were the groups similar at baseline regarding the most important prognostic indicators? | Were the eligibility criteria specified? | Was the outcome assessor blinded? | Was the care provider blinded? | Was the patient blinded? | Were point estimates and measures of variability presented for the primary outcome measures? | Did the analysis include an intention-to-treat analysis? |
|---|---|---|---|---|---|---|---|---|
Hammond et al. 1960[22] | Y | Y | NA | NA | NA | NA | Y | Y |
Brozovic et al. 1974[23] | NA | NA | Y | NA | NA | NA | Y | N |
Lundstrom et al. 1977[2] | N | NA | Y | NA | NA | NA | Y | Y |
Iwai et al. 1986[24] | NA | NA | N | NA | N | N | Y | Y |
Hall et al. 1993[25] | Y | Y | Y | NA | NA | Y | Y | Y |
Griffin et al. 1999[26] | Y | N | Y | NA | NA | Y | N | Y |
Franz et al. 2000[27] | Y | Y | Y | NA | NA | NA | Y | N |
Friel et al. 2001[28] | Y | Y | Y | NA | NA | NA | Y | Y |
Aggarwal et al. 2005[29] | Y | Y | Y | NA | NA | Y | Y | Y |
Miller et al. 2006[30] | N | N | Y | NA | NA | NA | N | Y |
Arnon et al. 2007[31] | Y | Y | Y | NA | NA | NA | Y | N |
Steinmacher et al. 2007[32] | Y | Y | Y | NA | NA | NA | Y | Y |
Braekke et al. 2007[33] | N | NA | Y | NA | NA | NA | Y | Y |
Sankar et al. 2009[34] | Y | Y | Y | Y | N | Y | Y | Y |
Berglund et al. 2010[35] | Y | Y | Y | NA | Y | Y | Y | Y |