Objective: The purpose of our study was to investigate whether Minneso
ta Multiphasic Personality Inventory-2 cluster solutions of chronic lo
w-back pain patients would replicate those found in previous research
with the Minnesota Multiphasic Personality Inventory. Setting: A multi
disciplinary pain clinic in the southeastern United States. Patients:
The subjects were 201 chronic low-back pain patients who had suffered
a work-related back injury. Outcome Measures: The Minnesota Multiphasi
c Personality Inventory-2. Results: We found four relatively homogeneo
us subgroups of chronic low-back pain patients that were similar to th
ose identified by previous researchers using data collected with the M
innesota Multiphasic Personality Inventory. Conclusion: These findings
indicate that interpretations of the Minnesota Multiphasic Personalit
y Inventory-2 should parallel those of the Minnesota Multiphasic Perso
nality Inventory for chronic low-back pain patients. They further sugg
est that the results of Minnesota Multiphasic Personality Inventory-ba
sed studies are also applicable to Minnesota Multiphasic Personality I
nventory-2.