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. 2017 Sep 22;2(3):e000389. doi: 10.1136/bmjgh-2017-000389

Table 1.

AMSTAR ratings for each systematic review

Review Q1
A priori design provided		 Q2
Duplicate study selection and data extraction		 Q3
Comprehensive literature search		 Q4
Publication status as inclusion criterion		 Q5
List of studies (included and excluded) provided		 Q6
Characteristics of included studies provided		 Q7
Quality assessment		 Q8
Quality used appropriate		 Q9
Methods used to combine appropriate		 Q10
Publication bias assessed		 Q11
Conflict of interest stated		 Total
Oral supplementation with vitamins alone or in combination with other micronutrients
 McCauley et al 24 Yes Yes Yes Yes Yes Yes Yes No Yes No Yes 9
 Rumbold et al 45 Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes 10
 Rumbold et al 46 46 Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes 10
 De-Regil et al25 Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes 10
 Lassi et al 26 Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes 10
Oral supplementation of minerals alone or in combination with other micronutrients
 An et al 27 No Yes Yes Cannot answer Yes Yes Yes No Yes No Yes 7
 Buppasiri et al28 Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes 10
 Hofmeyr et al 29 Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes 10
 Peña-Rosas et al 30 Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes 10
 Harding et al 31 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes 11
 Makrides et al 32 Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes 10
 Ota et al 33 Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes 10
 Soltani et al 34 No Yes Yes Yes Yes Yes Yes No Yes No No 7
Multiple micronutrients supplementation
 Fall et al 35 No Cannot answer No No No Yes No No Yes No Yes 3
 Haider et al 36 Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes 10
 Ramakrishnan et al 37 No No Yes Yes No Yes No No Yes Yes Yes 6
Protein supplementation and nutritional education
 Ota et al38 38 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes 11
Marine oil and fatty acids supplementation
 Makrides et al39 Yes Yes Yes Yes Yes Yes Yes No Yes No Yes 9
 Salvig et al40 No Yes No Cannot answer Yes Yes Yes No No No Yes 5
Reduced salt intake
 Duley et al41 Yes Yes No Cannot answer Yes Yes Yes No Yes No Yes 7
Soil-transmitted helminthiasis preventive chemotherapy
 Salam et al42 Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes 10
Preventive antimalarial drugs
 Radeva-Petrova et al43 Yes Yes Yes Yes Yes Yes Yes No Yes No Yes 9
 Muanda et al 44 No Yes Yes No No Yes Yes No Yes Yes Yes 7