Table 1. Description of variables

KNHANES Description Osteoporosis Normal
Age Age (year) 68.69±8.39 54.75±12.17
HE_wt Weight (kg) 55.88±8.43 58.91±9.25
HE_ht Height (cm) 152.77±5.93 157.12±6.15
HE_wc Waist circumference (cm) 82.79±9.26 80.73±9.59
GS Grip strength (kgf) 18.91±5.03 22.13±5.13
BMI Body mass index 23.93±3.29 23.87±3.55
EQ5D Quality of life 0.86±0.16 0.94±0.11
EC_wht_23 Average working time per week (hour) 12.36±19.79 21.96±22.37
BE3_31 Walking per week (day) 4.41±2.72 4.75±2.6
BE5_1 Strength training per week (day) 1.38±1.17 1.52±1.31
LQ4_00 Activity restriction Yes: 410No: 1,604 Yes: 742No: 9,173
EC1_1 Occupational activity Yes: 673No: 1,341 Yes: 5,328No: 4,587
BE3_71 Work-related moderate-intensity physical activity Yes: 12No: 2,002 Yes: 53No: 9,862
BE3_81 Work-related moderate-intensity physical activity Yes: 77No: 1,937 Yes: 512No: 9,403
BE3_75 Leisure-related high-intensity physical activity Yes: 30No: 1,984 Yes: 633No: 9,282
BE3_85 Leisure-related moderate-intensity physical activity Yes: 222No: 1,792 Yes: 2,049No: 7,866
BO1_1 Weight change No: 1,420Increase: 310Decrease: 284 No: 6,318Increase: 1,094Decrease: 2,503