Table 1 Characteristics of the study participants according to serum parathyroid hormone levels.
Characteristics | PTH levels (pmol/L) | P Value | ||||
|---|---|---|---|---|---|---|
Q1 (0.70–3.41) | Q2 (3.41–4.51) | Q3 (4.51–5.83) | Q4 (5.83–54.01) | |||
Age | 40.84 ± 14.53 | 45.59 ± 15.49 | 49.55 ± 16.22 | 52.68 ± 16.55 | < 0.0001 | |
Gender | Male | 464 (56.59%) | 498 (54.37%) | 430 (50.00%) | 438 (47.61%) | < 0.0001 |
Female | 356 (43.41%) | 418 (45.63%) | 430 (50.00%) | 482 (52.39%) | ||
Race/ethnicity (%) | < 0.0001 | |||||
Non-Hispanic White | 484 (59.02%) | 471 (51.42%) | 440 (51.16%) | 415 (45.11%) | ||
Non-Hispanic Black | 141 (17.20%) | 177 (19.32%) | 175 (20.35%) | 275 (29.89%) | ||
Mexican American | 149 (18.17%) | 193 (21.07%) | 188 (21.86%) | 174 (18.91%) | ||
Other Race | 46 (5.61%) | 75 (8.19%) | 57 (6.63%) | 56 (6.09%) | ||
PIR | 2.73 ± 1.57 | 2.83 ± 1.69 | 2.75 ± 1.59 | 2.69 ± 1.57 | 0.426 | |
BMI | 26.86 ± 5.25 | 27.66 ± 5.33 | 28.67 ± 5.76 | 29.73 ± 6.26 | < 0.001 | |
Total spine BMD, gm/cm2 | 1.05 ± 0.14 | 1.04 ± 0.15 | 1.03 ± 0.15 | 1.03 ± 0.17 | 0.038 | |
TBS | 1.42 ± 0.13 | 1.39 ± 0.14 | 1.36 ± 0.14 | 1.33 ± 0.15 | < 0.001 | |
Alkaline phosphatase, mg/dl | 66.45 ± 24.90 | 70.30 ± 24.35 | 70.44 ± 22.05 | 77.71 ± 31.85 | < 0.001 | |
Blood urea nitrogen, mg/dl | 12.22 ± 4.61 | 12.45 ± 4.43 | 12.93 ± 4.96 | 14.33 ± 7.76 | < 0.001 | |
Total cholesterol, mg/dl | 198.86 ± 41.92 | 198.93 ± 40.85 | 201.13 ± 45.36 | 197.89 ± 40.65 | 0.429 | |
Total protein, mg/dl | 7.15 ± 0.47 | 7.19 ± 0.50 | 7.13 ± 0.44 | 7.12 ± 0.47 | 0.014 | |
Serum uric acid, mg/dl | 5.20 ± 1.28 | 5.35 ± 1.34 | 5.43 ± 1.33 | 5.72 ± 1.55 | < 0.001 | |
Calcium, mg/dl | 9.60 ± 0.33 | 9.53 ± 0.32 | 9.47 ± 0.31 | 9.42 ± 0.42 | < 0.0001 | |
Creatinine, mg/dl | 0.92 ± 0.19 | 0.92 ± 0.21 | 0.93 ± 0.20 | 1.07 ± 0.78 | < 0.0001 | |
Phosphorus, mg/dl | 3.88 ± 0.57 | 3.83 ± 0.55 | 3.76 ± 0.53 | 3.72 ± 0.58 | < 0.0001 | |
HDL-C, mg/dl | 54.13 ± 16.67 | 53.34 ± 15.28 | 54.25 ± 16.19 | 54.50 ± 16.52 | 0.758 | |
LDL-C, mg/dl | 116.97 ± 37.46 | 116.86 ± 35.92 | 119.42 ± 38.99 | 114.72 ± 37.29 | 0.147 | |
CRP, mg/dl | 0.39 ± 1.07 | 0.41 ± 0.71 | 0.41 ± 0.69 | 0.50 ± 0.69 | < 0.0001 | |
Vit D, mg/dl | 64.30 ± 21.16 | 58.30 ± 20.04 | 54.97 ± 18.53 | 50.21 ± 19.03 | < 0.0001 | |
Alcohol | Yes | 98 (11.95%) | 147 (16.05%) | 147 (17.09%) | 174 (18.91%) | < 0.0001 |
No | 68 (8.29%) | 105 (11.46%) | 120 (13.95%) | 134 (14.57%) | ||
Missing | 654 (79.76%) | 664 (72.49%) | 593 (68.95%) | 612 (66.52%) | ||
Coronary heart disease | Yes | 17 (2.07%) | 20 (2.18%) | 37 (4.30%) | 56 (6.09%) | < 0.0001 |
No | 800 (97.56%) | 895 (97.71%) | 820 (95.35%) | 855 (92.93%) | ||
Missing | 3 (0.37%) | 1 (0.11%) | 3 (0.35%) | 9 (0.98%) | ||
Physical activity | Yes | 362 (44.15%) | 391 (42.69%) | 354 (41.16%) | 383 (41.63%) | < 0.0001 |
No | 210 (25.61%) | 196 (21.40%) | 172 (20.00%) | 149 (16.20%) | ||
Missing | 248 (30.24%) | 329 (35.92%) | 334 (38.84%) | 388 (42.17%) | ||
Cancer | Yes | 47 (5.73%) | 74 (8.08%) | 80 (9.30%) | 95 (10.33%) | 0.012 |
No | 773 (94.27%) | 840 (91.70%) | 780 (90.70%) | 824 (89.57%) | ||
Missing | 0 (0.00%) | 2 (0.22%) | 0 (0.00%) | 1 (0.11%) | ||
Smoking | Yes | 467 (56.95%) | 453 (49.45%) | 401 (46.63%) | 409 (44.46%) | < 0.0001 |
No | 351 (42.80%) | 463 (50.55%) | 459 (53.37%) | 511 (55.54%) | ||
Missing | 2 (0.24%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) | ||
