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Table 4 Skeletal measures of participants stratified by age in the FORMEN baseline study, 2007-2008

From: Design and baseline characteristics of a prospective cohort study for determinants of osteoporotic fracture in community-dwelling elderly Japanese men: the Fujiwara-kyo Osteoporosis Risk in Men (FORMEN) Study

Index All age groups 65-69 years 70-74 years 75-79 years 80 years and older P for trend
BMD (g/cm2 )
LS 1.026 ± 0.191 1.022 ± 0.177 1.023 ± 0.185 1.030 ± 0.199 1.042 ± 0.226 0.1877
TH 0.878 ± 0.126 0.901 ± 0.124 0.880 ± 0.121 0.864 ± 0.129 0.841 ± 0.130 <0.0001
FN 0.740 ± 0.116 0.763 ± 0.117 0.741 ± 0.111 0.720 ± 0.114 0.715 ± 0.118 <0.0001
TR 0.684 ± 0.112 0.702 ± 0.109 0.685 ± 0.107 0.674 ± 0.117 0.651 ± 0.119 <0.0001
BMC (g)
LS 54.3 ± 13.3 54.2 ± 12.1 54.2 ± 13.4 54.5 ± 14.1 54.4 ± 14.4 0.7020
TH 36.5 ± 6.1 37.4 ± 6.3 36.5 ± 5.8 36.0 ± 5.9 35.2 ± 6.3 <0.0001
FN 3.9 ± 0.6 4.0 ± 0.6 3.9 ± 0.6 3.8 ± 0.6 3.8 ± 0.7 <0.0001
TR 8.9 ± 2.5 9.2 ± 3.5 8.9 ± 1.8 8.8 ± 1.8 8.5 ± 2.0 <0.0001
Area (cm2 )
LS 51.9 ± 5 52.2 ± 4.6 51.8 ± 5.1 52.0 ± 5.1 50.9 ± 5.2 0.0039
TH 41.6 ± 3.5 41.5 ± 3.6 41.5 ± 3.4 41.7 ± 3.3 41.8 ± 3.6 0.1959
FN 5.3 ± 0.4 5.2 ± 0.3 5.3 ± 0.4 5.3 ± 0.3 5.3 ± 0.3 0.0801
TR 13.0 ± 2.0 13.1 ± 2.7 13.0 ± 1.5 13.0 ± 1.5 13.1 ± 1.6 0.6968
Biochemical marker of bone turnover
OC (ng/ml) 4.8 (3.2, 6.5) 4.5 (2.6, 6.1) 4.8 (3.2, 6.5) 5.0 (3.5, 6.8) 5.4 (4.0, 6.9) <0.0001
ucOC (ng/ml) 2.9 (1.5, 5.4) 2.7 (1.5, 4.9) 2.9 (1.6, 5.4) 3.0 (1.6, 5.7) 3.4 (1.8, 6.4) <0.0001
TRACP-5b (mU/dl) 212.3 (121.7, 370.4) 200.2 (115.0, 348.7) 211.0 (120.2, 370.5) 212.3 (122.0, 369.3) 254.0 (152.5, 423.3) <0.0001
  1. BMD: Bone mineral density
  2. BMC: Bone mineral content
  3. LS: Lumbar spine TH: Total hip FN: Femoral neck TR: Trochanter
  4. OC: Osteocalcin
  5. ucOC: Undercarboxylated osteocalcin
  6. TRACP-5b: Tartrate resistant acid phosphatase isoenzyme 5b
  7. Values of bone densitometric measures represent mean ± SD.
  8. OC values represent median with interquartile limits in parentheses.
  9. ucOC and TRACP-5b values represent geometric mean with values for M-SD and M+SD in parentheses.
  10. Bone densitometric data at the spine and at the hip were obtained from 1916 and 2008 participants, respectively, without severe deformities in the region of interest.
  11. Number of participants with available measurements for OC, ucOC and TRACP-5b were 1971, 1970 and 2003, respectively.