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. 2010 Aug 16;11:183. doi: 10.1186/1471-2474-11-183

Table 4.

Sub-group analysis of clinical characteristics related to OP

Osteoporosis group (n = 1455)

Premenopausal Perimenopausal Postmenopausal
(n = 72, %) (n = 143, %) (n = 1240, %)
Sites of pain or numbness
 1 site 14 (19.44) 15 (10.50) 193 (15.56)
 2 sites 12 (16.67) 23 (16.08) 262 (21.13)
 3 sites 26 (36.11) 25 (17.48) 225 (18.15)
 4 sites 14 (19.44) 36 (25.17) 178 (14.35)
 5 sites 6 (8.33) 44 (30.77) 382 (30.81)
 Average sites 2.80 3.50 3.24
 Chi-square 11.200
 P 0.004
Duration of the symptoms
 < 1 month 5 (6.94) 11 (7.69) 59 (4.76)
 1-3 months 9 (12.50) 7 (4.90) 49 (3.95)
 3-6 months 8 (11.11) 9 (6.29) 58 (4.68)
 6-12 months 15 (20.83) 26 (18.18) 72 (5.81)
 12-36 months 12 (16.67) 21 (14.69) 257 (20.73)
 36-72 months 11 (15.28) 30 (20.98) 131 (10.56)
 72-144 months 5 (6.94) 13 (9.09) 250 (20.16)
 > 144 months 7 (9.72) 26 (18.18) 364 (29.35)
 Average months 36.44 52.95 75.58
 Chi-square 17.299
 P 0.000
Occurrences of bone fracture
 Never 67 (93.06) 87 (60.84) 1047 (84.44)
 Single 2 (2.78) 42 (29.37) 70 (5.65)
 Multiple 3 (4.17) 14 (9.79) 123 (9.92)
 Chi-square 5.067
 P 0.079