Cochrane · systematic review · CD009122

Intensive glucose control versus conventional glucose control for type 1 diabetes mellitus

Fullerton, B, Jeitler, K, Seitz, M, et al. · Cochrane Database of Systematic Reviews · 2014 · Cochrane Library

Metabolic and Endocrine DisordersAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
16
current version
GRADE rated
13
No studies
3
Included studies
NR
No studies 3 · 18.8%Ungraded 0 · 0%Very low 2 · 12.5%Low 4 · 25%Moderate 5 · 31.3%High 2 · 12.5%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Intensive glucose control versus conventional glucose control for type 1 diabetes mellitus

Population: persons with type 1 diabetes mellitus
16 questions
OutcomeEffectEvidenceStatus / GRADE
Macrovascular complications
Intensive glucose control vs conventional glucose control
no estimate extractedNRLow
Downgraded: risk of bias, imprecision, indirectness
Microvascular complications
Intensive glucose control vs conventional glucose control
no estimate extractedNRNo studies
Manifestation of retinopathy
Intensive glucose control vs conventional glucose control
RR 0.27 [0.18, 0.42]2 studies · 768 participantsHigh
Progression of retinopathy
Intensive glucose control vs conventional glucose control
RR 0.61 [0.49, 0.76]2 studies · 764 participantsModerate
Downgraded: risk of bias, imprecision, indirectness
Progression of retinopathy
Intensive glucose control vs conventional glucose control
RR 2.32 [1.16, 4.63]2 studies · 96 participantsLow
Downgraded: risk of bias, imprecision, indirectness
Manifestation of nephropathy
Intensive glucose control vs conventional glucose control
RR 0.56 [0.46, 0.68]3 studies · 1475 participantsModerate
Downgraded: risk of bias, imprecision, indirectness
Progression of nephropathy
Intensive glucose control vs conventional glucose control
RR 0.793 studies · 179 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Manifestation of neuropathy
Intensive glucose control vs conventional glucose control
RR 0.35 [0.23, 0.53]3 studies · 1203 participantsHigh
Progression of neuropathy
Intensive glucose control vs conventional glucose control
no estimate extractedNRNo studies
Adverse events
Intensive glucose control vs conventional glucose control
no estimate extractedNRNo studies
Severe hypoglycaemia, baseline HbA1c < 9.0
Intensive glucose control vs conventional glucose control
RR 1.68 [1.29, 2.19]3 studies · 1583 participantsLow
Downgraded: risk of bias, imprecision, indirectness
Severe hypoglycaemia, baseline HbA1c ≥9.0
Intensive glucose control vs conventional glucose control
RR 1.04 [0.66, 1.64]8 studies · 525 participantsLow
Downgraded: risk of bias, imprecision, indirectness
Ketoacidosis
Intensive glucose control vs conventional glucose control
OR 4.93 [1.18, 20.6]3 studies · 96 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Health‐related quality of life
Intensive glucose control vs conventional glucose control
no estimate extracted2 studies · 1441 participantsModerate
Downgraded: risk of bias, imprecision, indirectness
All‐cause mortality
Intensive glucose control vs conventional glucose control
OR 1.02 [0.48, 2.19]10 studies · 2039 participantsModerate
Downgraded: risk of bias, imprecision, indirectness
Costs
Intensive glucose control vs conventional glucose control
no estimate extracted2 studies · 1441 participantsModerate
Downgraded: risk of bias, imprecision, indirectness