Table 2.
Comparison of bone metabolism between patients with or without increased prolactin.
| Variables | All subjects | Men | Women | |||
|---|---|---|---|---|---|---|
| NP (n = 541) | HP (n = 101) | NP (n = 310) | HP (n = 71) | NP (n = 470) | HP (n = 30) | |
| Type I collagen, ng/ml | 0.41 ± 0.23 | 0.37 ± 0.19 | 0.41 ± 0.24 | 0.40 ± 0.19 | 0.42 ± 0.23 | 0.30 ± 0.17 |
| Osteocalcin, ng/ml | 13.10 ± 5.37 | 12.00 ± 4.27 | 12.67 ± 5.63 | 12.14 ± 4.21 | 13.69 ± 4.95 | 11.59 ± 4.66 |
| PTH, pg/ml | 32.64 ± 19.90 | 29.92 ± 14.81 | 32.82 ± 20.68 | 30.48 ± 15.75 | 32.39 ± 18.85 | 28.36 ± 12.14 |
| BALP, µ/l | 118.73 ± 22.07 | 114.08 ± 19.35 | 117.73 ± 21.96 | 113.04 ± 19.53 | 120.09 ± 22.22 | 116.66 ± 19.17 |
| Calcitonin, pg/ml | 10.00 (5.25, 18.00) | 12.50 (7.00, 19.75) | 12.00 (6.00, 19.00) | 14.00 (6.00, 20.00) | 9.00 (4.00,17.00) | 10.00 (7.00,19.50) |
| 25(OH)VD, mmol/l | 42.48 ± 16.57 | 46.22 ± 18.93 | 42.98 ± 16.32 | 45.90 ± 19.14 | 41.79 ± 16.93 | 47.04 ± 18.93 |
| Total calcium, mmol/l | 2.32 ± 0.10 | 2.30 ± 0.12 | 2.32 ± 0.09 | 2.27 ± 0.12 | 2.33 ± 0.11 | 2.36 ± 0.08 |
Continuous data are presented as means ± standard deviations (SD) or medians (interquartile ranges, IQR) based on the data distribution. Categorical variables are presented as number. NP, normal prolactin group; HP, increased prolactin group; PTH, parathyroid hormone; BALP, bone alkaline phosphatase; 25(OH)VD, 25-hydroxy vitamin D.