Crossover Not stated Crossover Not 15 subjects Relevant Sufficient 2013 Unclear Low Low Low Low Low Low design but no design. stated started and results washout details are Subjects finished the from period and given on the complied to study. performed the randomisation instructions analyses subjects’ method. before and were compliance during the reported. to dietary trial. The instructions short time before and between the during the intervention trial. and measuring the health outcome makes performance bias unlikely. Subjects Not stated. Crossover Not 23% of the Relevant Not stated. Lu 2000 Unclear Low Low Low High Low Unclear consumed the design. The stated subjects initially results test meals in subjects recruited did not from random order were complete the performed on 3 separate blinded as study. analyses mornings but to the test were not further meals they reported. details on the received. random Test breads sequence were cut generation into similar were given. small triangles and randomly coded with a 3-digit number to
2013 Unclear Crossover design but no details are given on the randomisation method. Low Not stated Low Crossover design. Subjects complied to instructions before and during the trial. The short time between the intervention and measuring the health outcome makes performance bias unlikely. Low Not stated Low 15 subjects started and finished the study. Low Relevant results from performed analyses were reported. Low Sufficient washout period and the subjects’ compliance to dietary instructions before and during the trial. Lu 2000 Unclear Subjects consumed the test meals in random order on 3 separate mornings but not further details on the random sequence generation were given. Low Not stated. Low Crossover design. The subjects were blinded as to the test meals they received. Test breads were cut into similar small triangles and randomly coded with a 3-digit number to Low Not stated High 23% of the subjects initially recruited did not complete the study. Low Relevant results from performed analyses were reported. Unclear Not stated.