Table 2.
Patients with elevated calcium who had parathyroid hormone (PTH) levels evaluated were more likely to be female, have commercial private insurance, and have fewer co-morbidities. There was a variable relationship between age and PTH evaluation.
| Demographics | PTH Workup (N=3,200) |
no PTH Workup (N=7,232) |
p-value |
|---|---|---|---|
| Age in years (mean ± SD) | 60.7 +/− 15.1 | 51.3 +/− 24.5 | <.0001 |
| Age Group | <.0001 | ||
| 1. <=35 years old | 209 ( 6.5) | 1618 (22.4) | |
| 2. 36 to 45 years old | 242 ( 7.6) | 592 ( 8.2) | |
| 3. 46 to 55 years old | 596 (18.6) | 1157 (16.0) | |
| 4. 56 to 65 years old | 907 (28.3) | 1627 (22.6) | |
| 5. 66 to 75 years old | 743 (23.2) | 1282 (17.8) | |
| 6. 76 to 85 years old | 393 (12.3) | 698 ( 9.7) | |
| 7. >85 years old | 110 ( 3.4) | 237 ( 3.3) | |
| Gender | <.0001 | ||
| Female | 2174 (67.9) | 4198 (58.6) | |
| Male | 1026 (32.1) | 2967 (41.4) | |
| Race/Ethnicity | <.0001 | ||
| 1. White | 1818 (56.8) | 4007 (55.4) | |
| 2. Black | 1314 (41.1) | 2746 (38.0) | |
| 3. Other | 68 ( 2.1) | 479 ( 6.6) | |
| Insurance | <.0001 | ||
| 1. Commercial | 2014 (62.9) | 3957 (54.7) | |
| 2. Medicare | 998 (31.2) | 1877 (26.0) | |
| 3. Medicaid | 146 ( 4.6) | 931 (12.9) | |
| 4. Other/Uninsured/Unknown | 42 ( 1.3) | 467 ( 6.5) | |
| Encounter Type | <.0001 | ||
| 1. Outpatient | 2383 (74.5) | 3524 (48.7) | |
| 2. Inpatient | 572 (17.9) | 2494 (34.5) | |
| 3. ER | 147 ( 4.6) | 662 ( 9.2) | |
| Any Elixhauser Comorbidity | <.0001 | ||
| No | 729 (22.8) | 1454 (20.1) | |
| Yes | 2471 (77.2) | 5778 (79.9) | |
| Kidney Stones | 120 ( 3.8) | 147 ( 2.0) | <0.001 |
| Fracture | 216 ( 6.8) | 538 ( 7.4) | 0.2100 |
| Osteoporosis | 302 ( 9.4) | 359 ( 5.0) | <.0001 |
| Year of Index Calcium | |||
| 2011 | 700 (21.9) | 1291 (17.9) | <0.001 |
| 2012 | 618 (19.3) | 1248 (17.3) | |
| 2013 | 575 (18.0) | 970 (13.4) | |
| 2014 | 610 (19.1) | 1419 (19.6) | |
| 2015 | 697 (21.8) | 2304 (31.9) |