Appendix 5: Summary tables and risk of bias assessments for studies included in the systematic literature review Summary table Citation Study Population Intervention Outcomes Sample Compliance to Results & design level measured size duration sodium target location of relevant to (urinary data) research question Alli et al. Cluster II Adults GPs were Blood pressure 56 12 months Low sodium SBP: (supine after (1992), (patients of randomised to diet: 177.0 + Control group pre-study: 5min rest) Italy GPs), with provide their 32.9 mmol/24hr 148.3 + 10.6mmHg parallel mild patients with one [] Normal sodium design hypertension of two dietary Control group post-study: diet: 169.3 + study (DBP: 90 strategies – 148 + 13.7mmHg (NS 49.4 mmol/24hr 104 mmHg) change from baseline) 1. Dietary advice (Changes within to reduce dietary Low sodium group and between sodium to study: 150.8 + 8.7mmHg groups all non- 80mmol/day Low sodium group 2. no dietary advice 144.2 + 11.1mmHg Note appears to relating to sodium (p<0.05 compared to be very poor baseline, NS compared to compliance in control group post-study) low sodium group DBP: Control group pre-study: 97.2 + 3.8mmHg
Appendix 5: Summary tables and risk of bias assessments for studies included in the systematic literature review Summary table Citation & location Study design level of Population Intervention Outcomes measured relevant to research question Sample size duration Compliance to sodium target (urinary data) Results Alli et al. (1992), Italy [] Cluster parallel design study II Adults (patients of GPs), with mild hypertension (DBP: 90 – 104 mmHg) GPs were randomised to provide their patients with one of two dietary strategies 1. Dietary advice to reduce dietary sodium to 80mmol/day 2. no dietary advice relating to sodium Blood pressure (supine after 5min rest) 56 12 months Low sodium diet: 177.0 + 32.9 mmol/24hr Normal sodium diet: 169.3 + 49.4 mmol/24hr (Changes within and between groups all Note appears to be very poor compliance in low sodium group SBP: Control group pre-study: 148.3 + 10.6mmHg Control group post-study: 148 + 13.7mmHg (NS change from baseline) Low sodium group 150.8 + 8.7mmHg Low sodium group 144.2 + 11.1mmHg (p<0.05 compared to baseline, NS compared to control group post-study) DBP: Control group pre-study: 97.2 + 3.8mmHg non- study: