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. Author manuscript; available in PMC: 2020 Jul 1.
Published in final edited form as: J Pain. 2019 Jan 26;20(7):842–851. doi: 10.1016/j.jpain.2019.01.011

Table 5:

Principal component extraction matrix

Item Weighted ORT Unweighted ORT (Yes/No)
1 2 3 1 2 3
Family History of Alcohol Abuse .541 .340 −.339 .532 .486 −.213
Family History of Illegal Drugs .585 .543 −.226 .580 .560 −.247
Family History of Prescription Drug Abuse .439 .640 .023 .454 .552 −.038
Personal History of Alcohol Abuse .506 −.383 −.254 .490 −.375 −.265
Personal History of Illegal Drug Abuse .803 −.374 −.121 .792 −.403 −.162
Personal History of Prescription Drug Abuse .813 −.312 −.088 .802 −.348 −.126
Age 16-45 years .570 −.126 .247 .565 −.170 .252
Psych Disease: ADD, OCD, bipolar, schizophrenia .471 −.011 .485 .473 −.046 .524
Psych Disease: Depression .332 .128 .701 .364 .181 .667