Food Insecurity Interventions to Improve Blood Pressure: The Healthy Food First Factorial Randomized Clinical Trial
Primary result · SBPResult — go to the resultDifference −2.5 mm Hg 95% CI −4.1 to −0.9Authors' conclusion
In this randomized comparative effectiveness trial, a food subsidy produced a moderate reduction in SBP and DBP compared with a delivered food box. Offering lifestyle counseling and a longer benefit duration did not produce better blood pressure outcomes. Food insecurity declined from baseline in all groups, but did not differ between groups.
Study context
- Population
- Adults with hypertension, systolic blood pressure (SBP) ≥130 mm Hg, English or Spanish speaking, reporting food insecurity, North Carolinarandomized
- Participants
- 458 adults
- Comparison
- Food subsidy vs food box; lifestyle counselling vs none; 12 vs 6 months duration
- Primary endpoint
- SBP
- Follow-up
- 6 months from randomization
Methodological details2 × 2 × 2 factorial, comparative effectiveness, 2 clinical networks, 364 clinical sites
- 2 × 2 × 2 factorial
- Comparative effectiveness
- 2 clinical networks, 364 clinical sites
Primary result
As reported in the abstract
Difference
−2.5 mm Hg
95% CI −4.1 to −0.9
P = 0.003
By group
Secondary outcomes
| Outcome | Estimate | |
|---|---|---|
| SBP and DBP · 18 monthsFood subsidyvs Food box | SBP difference −2.1 mm Hg (95% CI −4.2 to −0.05) | |
| SBP and DBP · 18 monthsFood subsidyvs Food box | DBP difference −1.6 mm Hg (95% CI −2.8 to −0.3) | |
| −6−4−202Difference, mm Hg (linear scale) |
SBP and diastolic blood pressure (DBP) · 12 months
- Differences in favour of food subsidy, not significant
SBP and DBP, lifestyle counselling vs none · any time point
- Offering lifestyle counselling did not produce significantly lower SBP or DBP
SBP and DBP, 12-month vs 6-month duration · any time point
- 12-month duration did not produce significantly lower SBP or DBP
Food security · 6, 12 and 18 months
- Food security scores decreased from baseline in all groups; no significant difference between groups
Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.
Original publication
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