Table 1.
Characteristics of the study sample
| Without osteoporosis (n = 159) | With osteoporosis (n = 127) | p value | |
|---|---|---|---|
| Age, years median [IQR] (range) | 78 [74–89] (65–93) | 82 [76–88] (65–98) | <0.0011 |
| BMI, kg/m2 median [IQR] | 27 [24–32] | 25 [22–29] | <0.0011 |
| No. of medications median [IQR] | 5 [3–7] | 5 [3–7] | 0.761 |
| No. of diagnoses median [IQR] | 3 [2–4] | 3 [2–5] | <0.051 |
| Prior fracture after the age of 50% | 39 | 54 | <0.013 |
| ≥one falls within the last 12 months% | 69.8 | 63.3 | 0.243 |
| DXA T-score (n = 275) | |||
| Lumbar spine median [IQR] | -1.07 [-1.66–0.0] | -2.68 [-3.16– –2.04] | <0.0011 |
| Femoral neck median [IQR] | -1.68 [-2.06– –1.0] | -2.90 [-3.23– –2.51] | <0.0011 |
| Total hip median [IQR] | -1.07 [-1.60– –0.42] | -2.35 [-2.9– –1.89] | <0.0011 |
| QUS calcaneal (n = 221) | |||
| BUA dB/MHz, median [IQR] | 105.6 [95.2–117.8] | 86.9 [78.9–96.7] | <0.0011 |
| SOS m/s, median [IQR] | 1539.3 [1519.4–1558.3] | 1508.3 [1488.1–1527.6] | <0.0011 |
| SI T-score, median [IQR] | -1.2 [-2.1– –0.3] | -2.8 [-3.6– –2.0] | <0.0011 |
| RA phalangeal (n = 245) | |||
| T-score median [IQR] | -1.36 [-2.08– –0.37] | -2.62 [-3.36– –1.90] | <0.0011 |
Abbreviations: IQR Inter Quartile Range, BMI Body Mass Index, DXA Dual Energy X-ray Absorptiometry, QUS Quantitative Ultrasound, RA Radiographic Absorptiometry, BUA Broadband Ultrasound Attenuation, SOS Speed of Sound, SI Stiffness Index.1Man-Whitney test, 2two sample t-test, 3chi2 test.