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Table 5 Association between selected characteristics and disease severity, according to age at diagnosis

From: Factors associated with diagnostic stage of hip osteoarthritis due to acetabular dysplasia among Japanese female patients: a cross-sectional study

Characteristics 20–57 years 58 years or more
OR (95 % CI) P OR (95 % CI) P
Weight at 20 years of age (kg) a <46.0 1.00 1.00
  46.0–49.9 1.87 (0.63–5.54) 0.26 0.56 (0.17–1.92) 0.36
  50.0–54.9 0.89 (0.30–2.69) 0.84 0.74 (0.22–2.50) 0.62
  55.0+ 1.18 (0.39–3.60) 0.78 4.43 (0.76–26.0) 0.09
   (Trend P = 0.86) (Trend P = 0.26)
Weight change since age 20 (kg) a <−2 1.86 (0.67–5.16) 0.23 0.48 (0.09–2.61) 0.40
  ±2 1.00 1.00
  2+ 1.98 (0.89–4.41) 0.09 1.05 (0.34–3.27) 0.93
   (Trend P = 0.54) (Trend P = 0.38)
Weight at diagnosis (kg) b <48.5 1.00 1.00
  48.5–53.4 0.79 (0.29–2.16) 0.64 1.80 (0.56–5.86) 0.33
  53.5–60.4 0.98 (0.38–2.58) 0.97 1.07 (0.32–3.64) 0.91
  60.4+ 1.55 (0.59–4.06) 0.37 3.71 (0.93–14.7) 0.06
   (Trend P = 0.33) (Trend P = 0.15)
Duration from symptom onset (years)a <1.0 1.00 1.00
  1.0–1.9 1.30 (0.47–3.62) 0.62 2.21 (0.61–8.09) 0.23
  2.0–5.9 2.22 (0.85–5.79) 0.10 3.95 (1.16–13.5) 0.03
  6.0+ 1.64 (0.57–4.76) 0.36 14.3 (3.08–66.5) <0.01
   (Trend P = 0.20) (Trend P < 0.01)
  1. aModel included height, weight at age 20, weight change since age 20, smoking, consumption of alcohol, education, parity, acetabular head index, and duration since symptom onset (N = 234)
  2. bModel included height, weight at diagnosis, smoking, consumption of alcohol, education, parity, acetabular head index, and duration since symptom onset (N = 244)