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Table 5 Comparing percent change in BMD in patients < 50 years without and with baseline syndesmophytes

From: Which measuring site in ankylosing spondylitis is best to detect bone loss and what predicts the decline: results from a 5-year prospective study

Measuring site

% change in BMD

p value between groups

No syndesmophytes (n = 59)

Syndesmophytes present (n = 27)

Spine AP

1.13 ± 5.4*

6.44 ± 9.6**

0.01

Spine lateral

2.12 ± 8.0

6.04 ± 11.5*

0.19

vBMD

1.08 ± 7.6

4.15 ± 10.0

0.31

Total hip

–0.02 ± 3.6

2.84 ± 3.7**

0.001

Femoral neck

–3.15 ± 5.2***

–0.48 ± 5.0

0.04

Total radius

–0.35 ± 2.9

–0.68 ± 3.1

0.80

  1. Values are presented as mean ± SD
  2. *p < 0.05, **p < 0.01, ***p < 0.001, versus baseline
  3. Significant p values are shown in bold typeface
  4. AP anterior-posterior, BMD bone mineral density, vBMD volumetric BMD
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Arthritis Research & Therapy

ISSN: 1478-6362

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