| Methods |
RCT of parallel group design. |
| Participants |
High risk ‐ mild to moderate hypertension (DBP 90‐110 mm Hg on 3 separate occasions). Participants recruited from a Dutch GP surgery ‐ 35 randomised, 46% men, mean age 45 years. |
| Interventions |
Pilot intervention of intensive dietary counselling by a dietitian in general practice. Participants visited 3 times and goals were to have a daily intake of 80‐100 mmol sodium, 30 g of fibre, 10‐12% of polyunsaturated fatty acids. Comparison group told they would see the dietitian in 3 months. Follow‐up at 3 months. |
| Outcomes |
SBP, DBP, urinary sodium. |
| Notes |
|
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Random sequence generation (selection bias) |
Unclear risk |
See Table 1 |
| Allocation concealment (selection bias) |
Unclear risk |
See Table 1 |
| Blinding of participants and personnel (performance bias)
All outcomes |
Unclear risk |
See Table 1 |
| Blinding of outcome assessment (detection bias)
All outcomes |
Unclear risk |
See Table 1 |
| Incomplete outcome data (attrition bias)
All outcomes |
Unclear risk |
See Table 1 |
