Table 3.
Parathyroid hormone (PTH) and blood pressure (BP) and dietary calcium intake in human studies.
| Reference (First Author) |
Method | Country and Participants | Ca Intake (mg/day) | PTH (pmol/L) | BP (SBP − DBP mmHg) | |
|---|---|---|---|---|---|---|
| Takagi 1991 [34] | Clinical trial | Japan, 9 HT, 65–86 years, CaSup (1 g) vs. diet Ca 500 mg, 8 weeks | 1 g/day (CaSup) | 27 | −13.6 mmHg to −5.0 mmHg | |
| 500 mg/day (diet) | 33 | −1.5 mmHg to +1.0 mmHg | ||||
| Jorde 2000 [36] | Cohort study | Norway, 1113 subjects, 30–79 years | 592.1(±459.6) | 4.5(±1.2) | 143.4(±19.9) − 84.3(±10.4) | |
| 400.3(±227.3) | 9.1(±2.4) | 153.9(±27.1) − 89.7(±14.1) | ||||
| Kamycheva 2004 [35] | Cross-sectional | Norway, 3570 subjects, >24 years | ♂ | 499(±259) | Q1 <1.9 | 136.9(±17.7) |
| 476(±257) | Q2 1.9–2.6 | 140.1(±19.6) | ||||
| 443(±233) | Q3 2.61–3.5 | 142.0(±20.3) | ||||
| 430(±243) | Q4 >3.5 | 145.2(±20.3) | ||||
| ♀ | 478(±277) | Q1 <1.8 | 133.2(±18.5) | |||
| 428(±227) | Q2 1.8–2.4 | 135.5(±21.5) | ||||
| 431(±226) | Q3 2.41–3.3 | 141.9(±22.4) | ||||
| 408(±217) | Q4 >3.3 | 146.5(±23.2) | ||||
NT = normotensive people; HT = hypertensive people, CaSup= calcium supplementation; SBP = systolic blood pressure; DBP = diastolic blood pressure. Values are expressed as mean (±standard deviation).