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. 2009 Jan 21;2009(1):CD006296. doi: 10.1002/14651858.CD006296.pub2

Giacco 2000.

Methods Trial Design: RCT 
 Randomisation procedure: not stated, randomised with 2 parallel groups 
 Allocation concealment: not reported 
 Blinding: not reported 
 Intention to treat analysis: stated intention to treat, but all participants originally randomised not included (9 excluded)
Participants Country: Italy 
 Setting: community 
 Number: 63 
 Age: low‐GI group 29 ± 11 years, high‐GI group 26 ± 8 years 
 Sex: low‐GI group 12 males,17 females, high‐GI group 9 males, 16 females 
 Inclusion criteria: type 1 diabetic patients 
 Exclusion criteria: renal failure, liver disease or symptomatic cardiovascular disease 
 Other characteristics: C‐peptide negative, BMI 23.9 ± 0.6 kg/m2, duration of diabetes 10.3 ± 6.3 years, treated with insulin, HbA1c levels between 7 and 10%
Interventions Trial intervention: low glycaemic index diet (GI= 70%, 50g/day fibre, 
 comparison intervention: high gycemic index diet (GI=90%, 15 g/day fibre) 
 Duration: 24 weeks
Outcomes Main outcome measure: % glycated haemoglobin, mean daily plasma glucose, lipids, hypoglycaemic events, body weight, insulin dose
Notes Source of funding: Italian National Research Council and Bayer Italy 
 Drop‐outs: 9 drop outs, reasons not given
Risk of bias
Bias Authors' judgement Support for judgement
Allocation concealment? Unclear risk B ‐ Unclear