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Table 1 Characteristics of the study sample

From: Calcaneal quantitative ultrasound and Phalangeal radiographic absorptiometry alone or in combination in a triage approach for assessment of osteoporosis: a study of older women with a high prevalence of falls

 

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

  1. 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.