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. Author manuscript; available in PMC: 2013 Jul 1.
Published in final edited form as: J Obsessive Compuls Relat Disord. 2012 Apr 4;1(3):145–152. doi: 10.1016/j.jocrd.2012.03.004

Table 3.

Six Component Principal Components Analysis Solution

Component
YBOCS Category/Item Primary Symptom Contamination & Washing Hoarding Sexuality & Reassurance Aggression & Mental Symmetry & Perfectionism Doubt & Checking

Obsession: Contamination 56.8% .813 -.080 -.030 .050 .115 -.142
Compulsion: Washing 51.4% .801 -.032 -.023 -.020 .195 .039
Obsession: Somatic 8.1% .483 .225 -.079 .410 -.140 .188
Obsession: Hoarding 32.4% .078 .833 .250 .113 -.072 -.138
Compulsion: Hoarding 33.8% -.102 .806 .088 .147 .135 .016
Obsession: Losing Something 12.2% .049 .521 -.011 .052 .451 .315
Obsession: Know or Remember 14.9% .046 .093 .753 .090 -.146 -.279
Compulsion: Reassurance 6.8% -.178 .008 .624 -.016 .031 .272
Compulsion: Repeating 13.5% .093 .231 .587 .063 .109 .080
Obsession: Sexual 10.8% -.172 -.079 .446 .391 -.037 .336
Obsession: Impulsive Aggression 8.1% .031 .100 -.020 .778 .125 .055
Compulsion: Listmaking 10.8% .015 .297 .117 .536 -.005 -.016
Compulsion: Mental 24.3% -.427 -.040 .338 .481 .203 -.259
Compulsion: Counting 8.1% .173 -.358 .211 .453 .181 -.171
Obsession: Symmetry 25.7% .385 .082 .087 .044 .702 .175
Obsession: Misunderstood 12.2% -.080 .080 -.114 .203 .698 .031
Compulsion: Ordering 29.7% .530 -.136 .172 -.146 .620 .058
Obsession: Unintentional Harm 20.3% -.195 -.079 -.024 -.047 -.016 .786
Obsession: Scrupulosity 9.5% .325 .079 .433 .162 -.006 .491
Compulsion: Checking 44.6% .339 .105 .127 -.010 .008 .474

YBOCS = Yale-Brown Obsessive-Compulsive Scale. Primary Symptom = Evaluators identified up to three obsessions and three compulsions that were of primary clinical concern for each participant.