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Table 2 Comparison of back pain and daily activity restrictions between low bone mass postmenopausal women with and without hypovitaminosis D

From: Association of back pain with hypovitaminosis D in postmenopausal women with low bone mass

Characteristics Hypovitaminosis D Without hypovitaminosis D p-value Odds ratio (CI95%)
Number of participants 2272 7033 - -
Back pain in the previous 6 months     
∙Yes 1580 (69.5%) 4704 (66.9%) 0.022 1.14 (1.03 – 1.26)
∙No 682 (30.0%) 2310 (32.8%)   
∙Don’t know 10 (0.4%) 19 (0.3%)   
Pain frequency     
∙All the time 193 (8.5%) 475 (6.8%) 0.004 1.24 (1.03 – 1.48)
∙Almost all the time 330 (14.6%) 1012 (14.4%)   0.96 (0.83 – 1.11)
∙Sometimes 809 (35.7%) 2366 (33.7%)   1.04 (0.92 – 1.16)
∙Rarely 249 (11.0%) 851 (12.1%)   0.85 (0.72 – 0.99)
∙Don’t know 682 (30.1%) 2310 (32.9%)   
Pain severity     
∙Very weak 67 (3.0%) 266 (3.8%)   0.74 (0.56 – 0.98)
∙Weak 363 (16.0%) 1087 (15.5%) 0.001 0.99 (0.86 – 1.14)
∙Moderate 783 (34.6%) 2439 (34.8%)   0.91 (0.81 – 1.02)
∙Severe 322 (14.2%) 807 (11.5%)   1.23 (1.07 – 1.43)
∙Very severe 46 (2.0%) 104 (1.5%)   1.33 (0.92 – 1.91)
∙Don’t know 682 (30.1%) 2310 (32.9%)   
Daily activity restriction in the previous 6 months     
∙Yes 391 (17.2%) 983 (14.0%) 0.001 1.28 (1.12 – 1.46)
∙No 1869 (82.3%) 6006 (85.4%)   
∙Don’t know 12 (0.5%) 42 (0.6%)   
  1. Data displayed as number of participants (%).
  2. CI, Confidence Interval.