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Table 1 Basic characteristics of schizophrenic patients compared to the general community in Japanese subjects

From: Effect of age and disease on bone mass in Japanese patients with schizophrenia

Age subgroup, years Subjects OSI
  Schizophrenia, n Community, n Schizophrenia, mean (SD) Community, mean (SD)
Male:     
20 to 29 20 15 3.13 ± 0.35 2.97 ± 0.52
30 to 39 43 28 2.89 ± 0.49 3.06 ± 0.46
40 to 49 32 57 2.76 ± 0.55* 2.96 ± 0.38
50 to 59 40 90 2.68 ± 0.43* 2.86 ± 0.32
60 to 69 30 76 2.57 ± 0.56* 2.87 ± 0.40
70 or older 13 61 2.10 ± 0.37* 2.84 ± 0.51
Total 178 327   
Female:     
20 to 29 24 15 2.80 ± 0.38 2.88 ± 0.34
30 to 39 32 40 2.98 ± 0.67 2.85 ± 0.37
40 to 49 34 62 2.72 ± 0.36 2.74 ± 0.32
50 to 59 39 136 2.48 ± 0.28 2.55 ± 0.36
60 to 69 28 150 2.20 ± 0.30* 2.37 ± 0.24
70 or older 27 102 2.08 ± 0.22* 2.27 ± 0.23
Total 184 505   
  1. Student's unpaired t test was used to evaluate the differences of osteosono-assessment index (OSI) values between schizophrenic patients and general community. *P < 0.05.