Clinical evidence dossier
Lifestyle intervention for prediabetes
HbA1c
Evidence signal
Evidence signal
Strong
This is an authoritative evidence signal supplied by Clinical Reference. It is not a formal clinical grade, treatment recommendation, or pooled effect estimate.
Evidence snapshot
- Authoritative support records
- 13
- Supporting studies available for review
- 13
- Randomized trials
- 10
- Reported effects
- 12
Clinical conclusion
Lifestyle intervention for prediabetes shows a moderate positive evidence signal for improving HbA1c across the studied comparisons.
The conclusion and evidence-signal classification are distinct authoritative fields and are reproduced as published.
Observed effects
Observed study estimates; not a pooled treatment effect.
Change from baseline
Absolute change
−0.2% to −0.2%
Change from baseline
Mean difference
−2.3% to −0.39%
Between-group effect
Mean difference
−0.52% to 0.24%
Change from baseline
Mean difference
−0.84 mmol/mol to −0.84 mmol/mol
Between-group effect
Mean difference
−0.5 mmol/mol to −0.5 mmol/mol
Evidence composition
- Non-randomized studies
- 2
- Other designs
- 0
- Unresolved designs
- 1
- Magnitude-eligible effects
- 11
Consistency
Consistency classification
Consistent
- Positive
- 11
- No effect
- 2
- Mixed
- 0
- Negative
- 0
Population and applicability
Structured population data were available for 13 of 13 supporting studies. 5 studies described participants with type 2 diabetes. 13 studies described adult participants.
This population information refers to the materialized supporting studies available for review. Omitted support records remain part of the authoritative support accounting and are available through the audit experience.
View reported population descriptions
These descriptions are reported across the supporting studies; they are not a single synthesized population.
- Young Adult (19–39)
- Middle Aged (40-64)
- Male
- Female
- with T2 Diabetes
- Adults aged 18-65 years with prediabetes in two sub-urban communities in Seremban, Malaysia
- Adults diagnosed with diabetes and hypertension.
- Individuals seeking culturally tailored health interventions.
- Adults with non-diabetic hyperglycaemia (NDH/prediabetes) identified via two-stage risk score screening, aged 40-75 y (white European) or 25-75 y (South Asian)
- Japanese adults aged 30-65 with prediabetes.
- Individuals at high risk for developing type 2 diabetes.
- Adults diagnosed with prediabetes.
Limitations
- 2 supporting studies do not have a displayable topic-matched quantitative effect.
- Evidence uses heterogeneous comparison contexts: baseline_within_group, unknown_unresolved, usual_care.
- 3 supporting studies have high, serious, critical, unclear, or unavailable risk-of-bias information.
- 2 studies contain conflicting p-value and significance fields; those significance claims are suppressed.
Supporting evidence
Inspect the authoritative studies and omitted support records for this dossier.