Table 2. Distribution of bone density among different groups of patients based on T-score.
| T-score (male aged 50 years and over, and postmenopausal female) | Lumbar spine, n (%) | Femoral neck, n (%) | Total hips, n (%) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Normal | Osteopenia | Osteoporosis | P value† | Normal | Osteopenia | Osteoporosis | P value† | Normal | Osteopenia | Osteoporosis | P value† | |||
| Gender, n (%) | 0.067 | 0.091 | 0.044 | |||||||||||
| Male (N=180) | 25 (13.9) | 81 (45.0) | 74 (41.1) | 35 (19.4) | 110 (61.1) | 35 (19.4) | 59 (32.8) | 105 (58.3) | 16 (8.9) | |||||
| Female (N=510) | 67 (13.1) | 184 (36.1) | 259 (50.8) | 85 (16.7) | 284 (55.7) | 141 (27.6) | 149 (29.2) | 277 (54.3) | 84 (16.5) | |||||
| BMI, n (%) | <0.001 | <0.001 | <0.001 | |||||||||||
| <18.5 (N=83) | 2 (2.4) | 23 (27.7) | 58 (69.9) | 4 (4.8) | 41 (49.4) | 38 (45.8) | 7 (8.4) | 52 (62.7) | 24 (28.9) | |||||
| 18.5–24.9 (N=435) | 58 (13.3) | 168 (38.6) | 209 (48.0) | 75 (17.2) | 245 (56.3) | 115 (26.4) | 123 (28.3) | 247 (56.8) | 65 (14.9) | |||||
| 25.0–29.9 (N=152) | 29 (19.1) | 64 (42.1) | 59 (38.8) | 35 (23.0) | 99 (65.1) | 18 (11.8) | 68 (44.7) | 74 (48.7) | 10 (6.6) | |||||
| >30.0 (N=20) | 3 (15.0) | 10 (50.0) | 7 (35.0) | 6 (30.0) | 9 (45.0) | 5 (25.0) | 9 (45.0) | 10 (50.0) | 1 (5.0) | |||||
†, Pearson’s Chi-squared test for gender or Fisher’s exact test with simulated P value based on 2,000 replicates for BMI. BMI, body mass index; BMD, bone mineral density.