Table 1 Participant demographics
| Â | Physicians (n= 7) | |||
| Â | Experimental group (n= 4) | Control group (n= 3) | ||
Age (years) | 42.8 ± 4.8 | 51.3 ± 2.6 | ||
Gender, male | 3 (75) | 2 (67) | ||
Length of time in practice (years) | 14.3 ± 4.0 | 20.0 ± 2.9 | ||
Past nutrition education | ||||
 A few lectures during medical school | 4 (100) | 3 (100) | ||
 Workshops or webinars | 0 (0) | 0 (0) | ||
 A nutrition course | 0 (0) | 0 (0) | ||
 Postsecondary degree in nutrition | 0 (0) | 0 (0) | ||
| Â | Patients (n= 65) | |||
| Â | Experimental group | Control group | ||
| Â | Phase 1 Usual care (n= 18) | Phase 2 Sodium Calculator (n= 18) | Phase 1 Usual care (n= 15) | Phase 2 Usual care (n= 14) |
Age (years) | 70.4 ± 8.8 | 69.9 ± 11.0 | 73.1 ± 10.5 | 66.2 ± 10.4 |
Gender, male | 8 (44.4) | 9 (50.0) | 15 (52) | 9 (64.3) |
Number of antihypertensive medications | 1.6 ± 0.5 | 1.4 ± 0.92 | 2.1 ± 1.4 | 1.5 ± 1.0 |
Systolic blood pressure (mmHg) | 137 ± 18.4 | 141.3 ± 16.2 | 139 ± 19.1 | 137 ± 18.3 |
Diastolic blood pressure (mmHg) | 78 ± 13.6 | 76 ± 10.7 | 78 ± 14.5 | 82 ± 12.9 |
BMI (kg/m2) | 34.6 ± 6.6 | 30.0 ± 6.3 | 31.1 ± 8.0 | 32.3 ± 4.2 |
Received advice from a dietitian about dietary sodium in the past | 2 (11.1) | 0 (0.0) | 2 (13.3) | 2 (14.3) |
Received advice from physician about dietary sodium in the past | 6 (33.3) | 3 (16.7) | 5 (33.3) | 6 (42.9) |
Sodium/salt affects your blood pressure | ||||
°Agree | 17 (94.4) | 15 (83.4) | 12 (80.0) | 10 (71.4) |
°Neutral | 1 (5.6) | 2 (11.1) | 1 (6.7) | 3 (21.4) |
°Disagree | 0 (0.0) | 0 (0.0) | 2 (13.3) | 1 (7.1) |
°N/A | 0 (0.0) | 1 (5.6) | 0 (0.0) | 0 (0.0) |
Currently trying to follow a low-sodium diet (pre-intervention) | 7 (38.9) | 9 (50.0) | 5 (33.3) | 5 (35.7) |