PMID- 11191580
OWN - NLM
STAT- MEDLINE
DCOM- 20010301
LR  - 20220408
IS  - 0022-3018 (Print)
IS  - 0022-3018 (Linking)
VI  - 188
IP  - 12
DP  - 2000 Dec
TI  - A brief assessment of psychosocial functioning of subjects with bipolar I 
      disorder: the LIFE-RIFT. Longitudinal Interval Follow-up Evaluation-Range 
      Impaired Functioning Tool.
PG  - 805-12
AB  - Those afflicted with bipolar disorder often suffer from substantial functional 
      impairment both when in episode and when in remission. This study examined the 
      psychometric properties of a brief assessment of psychosocial functioning, the 
      Range of Impaired Functioning Tool (LIFE-RIFT), among subjects with bipolar I 
      disorder. The study sample consisted of 163 subjects who presented with bipolar I 
      disorder at intake into the NIMH Collaborative Depression Study (CDS). All 
      LIFE-RIFT items come from the Longitudinal Interval Follow-up Evaluation (LIFE). 
      Follow-up data that were used to examine the reliability and validity of the 
      scale come from assessments of psychosocial functioning that were conducted 6, 
      12, 18, and 24 months after intake into the CDS. The results of factor analyses 
      indicate that the scale items are measures of one construct, psychosocial 
      functioning. The interrater agreement on the scale score was very good with an 
      intraclass correlation coefficient was 0.94. The internal consistency reliability 
      among the scale items was uniformly satisfactory over the four assessment 
      periods, with coefficient alpha ranging from 0.78 to 0.84. Mixed-effect 
      regression analyses showed that during mood episodes subjects were significantly 
      more impaired than those in recovery. In conclusion, the psychometric properties 
      of the LIFE-RIFT were examined in subjects with bipolar I disorder. The analyses 
      from this longitudinal, observational study provide empirical support for the 
      reliability and validity of the scale. The LIFE-RIFT provides a brief, 
      inexpensive alternative to scales currently used to assess psychosocial 
      functioning and can be easily added to semistructured assessments that are used 
      in clinical and treatment outcome studies.
FAU - Leon, A C
AU  - Leon AC
AD  - Weill Medical College of Cornell University, Department of Psychiatry, New York, 
      New York 10021, USA.
FAU - Solomon, D A
AU  - Solomon DA
FAU - Mueller, T I
AU  - Mueller TI
FAU - Endicott, J
AU  - Endicott J
FAU - Posternak, M
AU  - Posternak M
FAU - Judd, L L
AU  - Judd LL
FAU - Schettler, P J
AU  - Schettler PJ
FAU - Akiskal, H S
AU  - Akiskal HS
FAU - Keller, M B
AU  - Keller MB
LA  - eng
GR  - R01 MH025478/MH/NIMH NIH HHS/United States
PT  - Journal Article
PT  - Multicenter Study
PL  - United States
TA  - J Nerv Ment Dis
JT  - The Journal of nervous and mental disease
JID - 0375402
SB  - IM
MH  - *Adaptation, Psychological
MH  - Adult
MH  - Bipolar Disorder/*diagnosis/psychology
MH  - Factor Analysis, Statistical
MH  - Female
MH  - Follow-Up Studies
MH  - Humans
MH  - Longitudinal Studies
MH  - Male
MH  - Outcome Assessment, Health Care
MH  - Psychiatric Status Rating Scales/*statistics & numerical data
MH  - Psychometrics
MH  - Reproducibility of Results
MH  - *Social Adjustment
EDAT- 2001/02/24 12:00
MHDA- 2001/03/07 10:01
CRDT- 2001/02/24 12:00
PHST- 2001/02/24 12:00 [pubmed]
PHST- 2001/03/07 10:01 [medline]
PHST- 2001/02/24 12:00 [entrez]
AID - 10.1097/00005053-200012000-00003 [doi]
PST - ppublish
SO  - J Nerv Ment Dis. 2000 Dec;188(12):805-12. doi: 10.1097/00005053-200012000-00003.