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Table 2 Number of documents retrieved by CISS and three other search engines, based on five queries composed in English by terms and expressions from a list of risk factors provided by specialists

From: Surveillance for the prevention of chronic diseases through information association

  Google Google scholar PubMed CISS
  + +/- -/+ - + +/- -/+ - + +/- -/+ - + +/- -/+ -
a 0 0 1 9 0 1 6 3 0 0 0 0 1 0 0 0
b 0 0 0 2 1 2 0 0 0 0 0 0 0 1 0 0
c 4 1 2 3 3 0 3 4 0 4 5 1 0 4 4 0
d 1 0 5 4 2 0 8 0 0 0 1 0 0 1 0 0
e 0 0 7 3 0 0 1 0 0 0 0 0 1 0 0 0
  1. Original Queries (rows): (a) Gestational background: Did she receive folic acid and iron? When did she start taking each of them and how long has she been taking them? Has she received other drugs in this pregnancy? (b) Gestational background: disorders during pregnancy such as hypertension, HDP, preeclampsia, eclampsia, heart disease, diabetes mellitus, gestational diabetes, anemia, bleeding (if so, in which trimester), maternal infections during pregnancy such as toxoplasmosis, CMV, AIDS, syphilis, UTI, Leucorrhoea, Streptococcus, reported stress and its cause. (c) Maternal background: age at menarche. (d) Child’s everyday life: sleep (hours of sleep per day, sleep disorders), playing routine. (e) Newborn background: low-weight TNB, low-weight PTNB, metabolic disease, nutritional disease.