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Table 1 Characteristics of Japanese women with newly diagnosed hip osteoarthritis caused by acetabular dysplasiaa

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

Characteristics    n (%) or median (range)
Age (years)   (n = 336) 57.7 (23.2–84.5)
Height (cm)   (n = 336) 153 (135–173)
Weight at age 20 (kg)   (n = 320) 50 (36–85)
Weight at diagnosis (kg)   (n = 336) 53 (31–105)
Weight change between age 20 and diagnosis (kg)   (n = 320) 4 (−28–40)
Body mass index at age 20 (kg/m2)   (n = 320) 20.9 (15.8–35.8)
Body mass index at diagnosis (kg/m2)   (n = 336) 22.8 (15.8–43.1)
Body mass index change between age 20 and diagnosis (kg/m2)   (n = 320) 1.6 (−13–16.7)
Presence of comorbidity Present (n = 335) 157 (47)
Smoking Never (n = 334) 265 (79)
  Past   36 (11)
  Current   33 (10)
Consumption of alcohol Never (n = 333) 202 (61)
  Past   15 (5)
  Current   116 (35)
Sports club activities at school Present (n = 334) 155 (46)
Education Junior high school (n = 333) 46 (14)
  High school   186 (56)
  Junior college or higher   101 (30)
Physical work Present (n = 331) 27 (8)
Parity Present (n = 334) 269 (81)
Clinical information    
 Involved side Hemilateral (n = 336) 141 (42)
  Bilateral   195 (58)
 Radiographic index of acetabular dysplasia Sharp angle (n = 255) 46 (27–58)
  Acetabular roof obliquity angle (n = 252) 23 (0–53)
  Acetabular head index (%) (n = 253) 65.5 (35.7–105.7)
 Duration since symptom onset (years)   (n = 330) 2.0 (0–43.0)
 Disease stage at OA diagnosis Pre-OA (n = 336) 43 (13)
  Initial stage   48 (14)
  Advanced stage   95 (28)
  Terminal stage   150 (45)
  1. aVariables are expressed as no. (%) or median (range)