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Table 1 Baseline characteristics in the C and F group

From: Adefovir dipivoxil induced hypophosphatemic osteomalacia in chronic hepatitis B: a comparative study of Chinese and foreign case series

Characteristics Descriptive statistics C group F group Df P Value
Case number n 120 32   
Age Mean ± SD 51.89 ± 10.96 56.47 ± 11.36 150 0.039a
  Range 22–79 31–81
Gender     1 0.844c
 Male n (%) 92 (76.7%) 24 (75.0%)
 Female n (%) 28 (23.3%) 8 (25.0%)
Period of pain (months) n 86 17 0.098b
  Median (Interquartile range) 18 (12–26.5) 13 (5.5–24)
  Range 1–102 1–72
ADV total treatment time (months) n 115 30 0.939b
  Median (Interquartile range) 60 (36–72) 57 (38–69)
  Range 5–144 9–132
ADV treatment time of pain onset (months) n 87 22 0.153b
  Median (Interquartile range) 36 (24–48) 47.5 (28–60)
  Range 2–95 1–90
BMI (kg/m2) n 8 5 11 0.192a
  Mean ± SD 21.21 ± 1.85 23.44 ± 3.98
  Range 19.53–24.70 18.00–28.00
Initial time of pain relief (months) n 76 20 0.003b
  Median (Interquartile range) 1.5 (1–2) 3 (2–6)
  Range 0.3–6.0 0.5–18.0
Initial time of serum Phos. Rising (months) n 53 11 0.115b
  Median (Interquartile range) 2 (1–3) 3.5 (1.75–6)
  Range 0.3–12.0 0.5–11.0
  1. ADV Adefovir Dipivoxil, BMI body mass index, Phos. phosphate
  2. aTwo independent sample t test
  3. bTwo independent sample Mann-Whitney U test
  4. c Fisher’s exact test