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Table 1 Distribution of the Study Population in Different BMD and TBS Categories

From: Factors associated with TBS worse than BMD in non-osteoporotic elderly population: Bushehr elderly health program

 

All sites BMD

1. Normal

2. Osteopenia

3. Osteoporosis

TBS

Women

1. Normal

28 (66.7%) b

132 (31.8%) b

84 (12.3%) c

2. Partially degraded

12 (28.6%) a

185 (44.6%) b

211 (30.8%) c

3. Degraded

2 (4.8%) a

98 (23.6%) a

390 (56.9%) c

Men

1. Normal

239 (93.4%) b

453 (72.8%) b

116 (44.1%) c

2. Partially degraded

14 (5.5%) a

132 (21.2%) b

87 (33.1%) c

3. Degraded

3 (1.2%) a

37 (6.0%) a

60 (22.8%) c

  1. BMD: Bone Mineral Density; TBS: Trabecular Bone Score; BMD categorized based on the lowest T-score of lumbar spine, femoral neck and total hip; Normal: lowest T-score ≥ −1.0; Osteopenia: −2.5 < lowest T-score < − 1.0; Osteoporosis: Lowest T-score ≤ − 2.5; TBS: Normal TBS > 1.31; Partially degraded: TBS 1.23–1.31; Degraded: TBS < 1.23; a: Discordant Subjects defined as “non-osteoporotic individuals with TBS worse than BMD” (including subjects with degraded TBS/normal BMD, degraded TBS/osteopenia, and partially degraded TBS/normal BMD); b: Others (including subjects with normal BMD/normal TBS, osteopenia/normal TBS, and osteopenia/partially degraded TBS); c: Excluded subjects with osteoporosis based on BMD of all sites