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Table 1 General characteristics of working-age TKA patients based on gender

From: The relationship between mental health/physical activity and pain/dysfunction in working-age patients with knee osteoarthritis being considered for total knee arthroplasty: a retrospective study

Characteristics Male patients Female patients P-value
No 65 87  
Age (no. (%))    0.431
 0–45 years 2 (3.08%) 7 (8.05%)  
 46–55 years 25 (38.46%) 33 (37.93%)  
 56–64 years 38 (58.46%) 47 (54.02%)  
Educational Level (%)    0.041
 Low 29 (45.31%) 22 (25.58%)  
 Secondary 24 (37.50%) 44 (51.16%)  
 High 11 (17.19%) 20 (23.26%)  
BMI (mean) 28.24 ± 3.19 31.08 ± 5.93 0.073
Depression PHQ-9 Score (mean) 2.86 ± 3.38 4.99 ± 3.91 < 0.001
WOMAC Pain (mean) 49.80 ± 21.65 35.92 ± 21.21 < 0.001
WOMAC Physical function (mean) 56.25 ± 17.41 41.47 ± 16.96 < 0.001
SF-36 Pain (mean) 42.98 ± 20.30 34.90 ± 17.65 0.01
SF-36 Mental health (mean) 83.06 ± 14.60 74.76 ± 13.78 < 0.001
SF-36 Vitality (mean) 68.20 ± 18.31 54.12 ± 18.10 < 0.001
SF-36 Social function (mean) 76.37 ± 22.40 64.08 ± 29.21 0.006
SF-36 Physical function (mean) 39.28 ± 17.43 25.87 ± 12.85 < 0.001
SF-36 Physical role function (no (%))    0.076
 0 22 (34.38%) 45 (51.72%)  
 25 10 (15.62%) 13 (14.94%)  
 50 10 (15.62%) 9 (10.34%)  
 75 6 (9.38%) 11 (12.64%)  
 100 16 (25.00%) 9 (10.34%)  
SF-36 Emotional role function (no (%))    0.496
 0 9 (14.29%) 18 (20.69%)  
 33 5 (7.94%) 6 (6.90%)  
 67 3 (4.76%) 8 (9.20%)  
 100 46 (73.02%) 55 (63.22%)  
Real working hours / week (mean) 39.15 ± 13.56 25.14 ± 12.26 < 0.001
Cycling activities (mean minutes / week) 95.68 ± 122.16 144.09 ± 174.95 0.07
Gardening activities (mean minutes / week) 198.81 ± 763.43 88.66 ± 147.00 0.204
Household activities (mean minutes / week) 301.21 ± 428.92 1153.00 ± 958.75 < 0.001
 Light 284.44 ± 424.87 986.76 ± 781.20 < 0.001
 Vigorous 16.77 ± 41.88 166.24 ± 367.33 0.002
Commuting activites (mean minutes / week) 204.95 ± 597.07 134.81 ± 569.07 0.472
Sports activities (mean minutes / week) 68.47 ± 153.33 79.88 ± 137.55 0.644
Leisuretime activities (mean minutes / week) 654.83 ± 956.99 439.45 ± 377.88 0.067
Work activities (mean minutes / week) 1815.00 ± 955.53 1314.42 ± 667.22 < 0.001
Total minutes (mean minutes / week) 2909.02 ± 1431.79 3004.70 ± 1278.75 0.667
 Light 1843.55 ± 1271.08 2149.90 ± 1062.44 0.111
 Moderate 837.66 ± 1059.58 681.56 ± 753.73 0.293
 Vigorous 227.81 ± 755.75 173.24 ± 258.69 0.534
  1. BMI body mass index, no. number, SF-36 36-Item Short Form Survey Instrument, TKA total knee arthroplasty, WOMAC Western Ontario and McMaster Universities Arthritis Index