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Table 1 Patient demographics and characteristics

From: A qualitative exploration of the patient experience of erosive and non-erosive hand osteoarthritis

Description Erosive HOA
(N = 15)
Non-erosive
HOA (N = 15)
Total sample
(N = 30)
Age, years, mean (min, max) 61 (43, 79) 56 (40, 75) 61 (40, 79)
Sex, n (%)
 Female 11 (73) 11 (73) 22 (73)
 Male 4 (27) 4 (27) 8 (27)
Ethnicity, n (%)
 Non-Hispanic or Latino 11 (73) 13 (87) 24 (80)
 Hispanic or Latino 2 (13) 2 (13) 4 (13)
 Missing data 2 (13) 0 (0) 2 (7)
Race, n (%)
 Black/African American 7 (47) 6 (40) 13 (43)
 White 6 (40) 7 (47) 13 (43)
 Hispanic 1 (7) 2 (13) 3 (10)
 Did not specify 1 (7) 0 (0) 1 (3)
Work status, n (%)
 Working full or part time 5 (33) 8 (53) 13 (43)
 Full-time homemaker 5 (33) 1 (7) 6 (20)
 Retired 3 (20) 3 (20) 6 (20)
 Disability 2 (13) 3 (20) 5 (17)
Highest level of education, n (%)
 College or University 5 (33) 5 (33) 10 (33)
 Some years at college 3 (20) 1 (7) 4 (13)
 High school diploma or GED 5 (33) 5 (33) 10 (33)
 Some high school 2 (13) 2 (13) 4 (13)
 Certificate program 0 (0) 1 (7) 1 (3)
 Grade school 0 (0) 1 (7) 1 (3)
Average hand pain severity over past 7 days, 0–10 NRSa, mean (min, max) 6.0 (5, 8) 5.9 (4, 9) 5.9 (4, 9)
Total MHQ score, mean (SD)b 70.0 (18.8) 69.6 (18.4) 69.8 (18.6)
Location of soft tissue swollen and tender PIP, n (%)c
 Thumb 13 (87) 11 (73) 24 (80)
 Middle finger 10 (67) 14 (93) 24 (80)
 Ring finger 7 (47) 10 (67) 17 (57)
 Index finger 6 (40) 6 (40) 12 (40)
 Little finger 6 (40) 2 (13) 8 (27)
Location of soft tissue swollen and tender DIP, n (%)c
 Middle finger 10 (67) 14 (93) 24 (80)
 Index finger 8 (53) 10 (67) 18 (60)
 Ring finger 4 (27) 6 (40) 10 (33)
 Little finger 3 (20) 2 (13) 5 (17)
Location of soft tissue swollen and tender MCP, n (%)c
 Middle finger 12 (80) 14 (93) 26 (87)
 Index finger 8 (53) 10 (67) 18 (60)
 Ring finger 6 (40) 7 (47) 13 (43)
 Little finger 4 (27) 4 (27) 8 (27)
 None 4 (27) 0 (0) 4 (13)
Swollen and tender CMC, n (%)d
 Yes 11 (73) 12 (80) 23 (77)
 No 2 (27) 2 (13) 6 (20)
Inflammation in the affected hand, n (%)
 Yes 15 (100) 7 (47) 22 (73)
 No 0 (0) 8 (53) 8 (27)
Location of OA elsewhere, n (%)c
 Knee 10 (66) 11 (73) 21 (70)
 Back 1 (6) 1 (6) 2 (7)
 Ankles 2 (13) 0 (0) 2 (7)
 Hip 1 (6) 0 (0) 1 (3)
Current treatments, n (%)
 Naproxen 7 (47) 9 (60) 16 (53)
 Ibuprofen 8 (53) 2 (13) 10 (33)
 Acetaminophen 3 (20) 0 (0) 4 (13)
 Tramadol 0 (0) 3 (20) 2 (7)
 Oxycodone 0 (0) 2 (13) 2 (7)
 Hydrocodone 0 (0) 2 (13) 2 (7)
 Voltaren gel 0 (0) 1 (6) 1 (3)
 Meloxicam 0 (0) 1 (6) 1 (3)
 Aspercream 0 (0) 1 (6) 1 (3)
 Celecoxib 1 (6) 0 (0) 1 (3)
 Duloxetine 1 (6) 0 (0) 1 (3)
 Fish oil 1 (6) 0 (0) 1 (3)
 Flexeril 0 (0) 1 (6) 1 (3)
  1. CMC Carpometacarpal, DIP Distal interphalangeal, GED General Educational Development, HOA Hand osteoarthritis, MCP Metacarpophalangeal, MHQ Michigan Hand Outcomes Questionnaire, NRS Numerical rating scale, OA Osteoarthritis, PIP Proximal interphalangeal, SD Standard deviation
  2. a0 = no pain, 10 = worst pain imaginable
  3. bData included for 27 out of the 30 participants, due to missing or incomplete data for 3 participants (n = 2 erosive, n = 1 non-erosive). The total MHQ score ranges from 0 to 100, with higher scores indicating better hand performance
  4. cMore than one option could be selected for each participant
  5. dMissing data for one participant