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Table 2 Influence of demographics and pain characteristics on Military Personality Inventory (MPI) results of adolescents with complex regional pain syndrome (CRPS)

From: Impact of adolescent complex regional pain syndrome on the psychopathology of young men ahead of military service: a retrospective cohort analysis of Korean conscription data

Variable Prevalence Logistic regression analysis
Normal MPI (n = 43) Abnormal MPI (n = 20) OR 95% CI P
Age (year, median) 19.35 19.28 0.25 0.01–4.24 0.334
Education [n (%)]
 College or more 28 (65.1) 12 (60.0) 1   
 High school or less 15 (34.9) 8 (40.0) 0.99 0.22–4.52 0.986
Socioeconomic status [n (%)]
 High 7 (16.3) 1 (5.0) 1   
 Middle 23 (53.5) 10 (50.0) 14.38 0.50–413.72 0.120
 Low 13 (30.2) 9 (45.0) 23.71 0.81–695.42 0.066
Parental coresidence status [n (%)]
 Both 36 (83.7) 18 (90.0) 1   
 One parent 6 (14.0) 2 (10.0) 0.41 0.02–7.00 0.536
 None 1 (2.3) 0 (0.0) 0 0 1.000
mCSS (2–9) 4.21 3.70 0.73 0.37–1.43 0.358
NRS (0–10) 6.40 5.95 0.97 0.56–1.68 0.358
Pain duration (month) 21.40 40.35 1.05 1.02–1.08 0.002*
CRPS type [n (%)]
 I 34 (79.1) 15 (75.0) 1   
 II 9 (20.9) 5 (25.0) 3.76 0.61–23.33 0.155
Affected site [n (%)]
 Upper extremity 12 (27.9) 6 (30.0) 1   
 Lower extremity 29 (67.4) 14 (70.0) 0.98 0.20–4.90 0.983
 Multiple 2 (4.7) 0 (0.0) 0 0 0.999
Treatment [n (%)]
 Physical or pharmacological therapy 15 (34.9) 6 (30.0) 1   
 Sympathetic nerve intervention 22 (51.2) 11 (55.0) 6.90 0.76–62.51 0.086
 Spinal cord stimulation 6 (14.0) 3 (15.0) 4.06 0.38–43.02 0.245
  1. MPI Military Personality Inventory, OR Odds ratio, CI Confidence interval, mCSS Modified Complex regional pain syndrome Severity Score, NRS Numerical rating scale, CRPS Complex regional pain syndrome