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Egyptian Rheumatology and Rehabilitation

Table 3 Comparison between the three studied periods according to lumbar and femur BMD

From: Bone mineral density changes in osteoporotic and osteopenic patients after COVID-19 infection

 

Baseline

After 9 months

After 21 months

Test of sig

p

Lumbar BMD

 COVID (n = 56)

  Mean ± SD

0.96 ± 0.11

0.91# ± 0.11

0.96 ± 0.11

F = 25.202*

 < 0.001*

 Non-COVID (n = 44)

  Mean ± SD

0.92 ± 0.11

0.92 ± 0.10

0.96# ± 0.11

F = 10.384*

 < 0.001*

Femur BMD

 COVID (n = 56)

  Mean ± SD

0.88 ± 0.12

0.84# ± 0.11

0.89 ± 0.13

F = 7.677*

0.002*

 Non-COVID (n = 44)

  Mean ± SD

0.89 ± 0.11

0.88 ± 0.13

0.89 ± 0.13

F = 1.335

0.268

  1. P value for comparing between the three studied periods
  2. SD standard deviation, F F test (ANOVA) with repeated measures (sig., bet. periods was done using post hoc test (adjusted Bonferroni)), BMD bone mineral density; COVID coronavirus disease
  3. #Significant with baseline
  4. *Statistically significant at p ≤ 0.05
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