HbA1c ReductionLifestyle intervention for prediabetes

Clinical evidence dossier

Lifestyle intervention for prediabetes

HbA1c

Evidence signal

Authoritative 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
8
Supporting studies available for review
8
Randomized trials
6
Reported effects
9

Clinical conclusion

Lifestyle intervention for prediabetes shows a strong positive evidence signal for improving HbA1c across the studied comparisons.

Observed effects

Observed study estimates; not a pooled treatment effect.

Change from baseline

Mean difference

-2.3 to -0.7 %

2 eligible estimates12–52 weeksObserved median: -1.5 %

Between-group effect

Mean difference

-0.52 to 0.24 %

4 eligible estimates26–156 weeksObserved median: 0.015 %

Change from baseline

Mean difference

-0.84 to -0.84 mmol/mol

2 eligible estimates52–52 weeksObserved median: -0.84 mmol/mol

Evidence composition

Non-randomized studies
1
Other designs
0
Unresolved designs
1
Magnitude-eligible effects
8

Consistency

Authoritative consistency classification

consistent

Positive
7
No effect
1
Mixed
0
Negative
0

Population and applicability

Structured population data were available for 8 of 8 supporting studies. 4 studies described participants with type 2 diabetes. 8 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.

  • 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)
  • Young Adult (19–39)
  • Middle Aged (40-64)
  • Male
  • Female
  • with T2 Diabetes
  • Adults diagnosed with type 2 diabetes.
  • Patients with a history of nephrectomy.
  • Individuals seeking lifestyle changes to manage diabetes.

Limitations

  • 1 relevant study has unresolved authoritative design evidence and does not contribute to design-specific or RoB-specific claims.
  • Evidence uses heterogeneous comparison contexts: baseline_within_group, unknown_unresolved, usual_care.
  • 2 supporting studies have high, serious, critical, unclear, or unavailable risk-of-bias information.

Supporting evidence

Inspect the authoritative studies and omitted support records for this dossier.

View supporting evidence