Abstract
Abstract Objectives Few prospective studies examine the impact of ethnicity or race on outcomes with lithium for bipolar disorder. This exploratory study examines differences in lithium response and treatment outcomes in Hispanics, African Americans, and non-Hispanic whites with bipolar disorder in the Lithium Treatment Moderate Dose Use Study (LiTMUS). Methods LiTMUS was a six-site randomized controlled trial of low-dose lithium added to optimized treatment (OPT; personalized, evidence-based pharmacotherapy) vs. OPT alone in outpatients with bipolar disorder. Of 283 participants, 47 African Americans, 39 Hispanics, and 175 non-Hispanic whites were examined. We predicted minority groups would have more negative medication attitudes and higher attrition rates, but better clinical outcomes. Results African Americans in the lithium group improved more on depression and life functioning compared to whites over the 6 month study. African Americans in the OPT only group had marginal improvement on depression symptoms. For Hispanics, satisfaction with life did not significantly improve in the OPT only group, in contrast to whites and African Americans who improved over time on all measures. Attitudes toward medications did not differ across ethnic/racial groups. Conclusions African Americans show some greater improvements with lithium than non-Hispanic whites, and Hispanics showed more consistent improvements in the lithium group. The impact of low-dose lithium should be studied in a larger sample as there may be particular benefit for African Americans and Hispanics. Given that the control group (regardless of ethnicity/race) had significant improvements, optimized treatment may be beneficial for any ethnic group.
| Original language | English (US) |
|---|---|
| Article number | 7320 |
| Pages (from-to) | 224-228 |
| Number of pages | 5 |
| Journal | Journal of Affective Disorders |
| Volume | 178 |
| DOIs | |
| State | Published - Jul 1 2015 |
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Keywords
- African Americans
- Bipolar disorder
- Health disparities
- Hispanics
- Lithium
- Treatment outcome
ASJC Scopus subject areas
- Psychiatry and Mental health
- Clinical Psychology
Cite this
An exploratory study of responses to low-dose lithium in African Americans and Hispanics. / Gonzalez Arnold, Jodi; Salcedo, Stephanie; Ketter, Terrence A.; Calabrese, Joseph R.; Rabideau, Dustin J.; Nierenberg, Andrew A.; Bazan, Melissa; Leon, Andrew C.; Friedman, Edward S.; Iosifescu, Dan; Sylvia, Louisa G.; Ostacher, Michael; Thase, Michael; Reilly-Harrington, Noreen A.; Bowden, Charles L.
In: Journal of Affective Disorders, Vol. 178, 7320, 01.07.2015, p. 224-228.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - An exploratory study of responses to low-dose lithium in African Americans and Hispanics
AU - Gonzalez Arnold, Jodi
AU - Salcedo, Stephanie
AU - Ketter, Terrence A.
AU - Calabrese, Joseph R.
AU - Rabideau, Dustin J.
AU - Nierenberg, Andrew A.
AU - Bazan, Melissa
AU - Leon, Andrew C.
AU - Friedman, Edward S.
AU - Iosifescu, Dan
AU - Sylvia, Louisa G.
AU - Ostacher, Michael
AU - Thase, Michael
AU - Reilly-Harrington, Noreen A.
AU - Bowden, Charles L.
PY - 2015/7/1
Y1 - 2015/7/1
N2 - Abstract Objectives Few prospective studies examine the impact of ethnicity or race on outcomes with lithium for bipolar disorder. This exploratory study examines differences in lithium response and treatment outcomes in Hispanics, African Americans, and non-Hispanic whites with bipolar disorder in the Lithium Treatment Moderate Dose Use Study (LiTMUS). Methods LiTMUS was a six-site randomized controlled trial of low-dose lithium added to optimized treatment (OPT; personalized, evidence-based pharmacotherapy) vs. OPT alone in outpatients with bipolar disorder. Of 283 participants, 47 African Americans, 39 Hispanics, and 175 non-Hispanic whites were examined. We predicted minority groups would have more negative medication attitudes and higher attrition rates, but better clinical outcomes. Results African Americans in the lithium group improved more on depression and life functioning compared to whites over the 6 month study. African Americans in the OPT only group had marginal improvement on depression symptoms. For Hispanics, satisfaction with life did not significantly improve in the OPT only group, in contrast to whites and African Americans who improved over time on all measures. Attitudes toward medications did not differ across ethnic/racial groups. Conclusions African Americans show some greater improvements with lithium than non-Hispanic whites, and Hispanics showed more consistent improvements in the lithium group. The impact of low-dose lithium should be studied in a larger sample as there may be particular benefit for African Americans and Hispanics. Given that the control group (regardless of ethnicity/race) had significant improvements, optimized treatment may be beneficial for any ethnic group.
AB - Abstract Objectives Few prospective studies examine the impact of ethnicity or race on outcomes with lithium for bipolar disorder. This exploratory study examines differences in lithium response and treatment outcomes in Hispanics, African Americans, and non-Hispanic whites with bipolar disorder in the Lithium Treatment Moderate Dose Use Study (LiTMUS). Methods LiTMUS was a six-site randomized controlled trial of low-dose lithium added to optimized treatment (OPT; personalized, evidence-based pharmacotherapy) vs. OPT alone in outpatients with bipolar disorder. Of 283 participants, 47 African Americans, 39 Hispanics, and 175 non-Hispanic whites were examined. We predicted minority groups would have more negative medication attitudes and higher attrition rates, but better clinical outcomes. Results African Americans in the lithium group improved more on depression and life functioning compared to whites over the 6 month study. African Americans in the OPT only group had marginal improvement on depression symptoms. For Hispanics, satisfaction with life did not significantly improve in the OPT only group, in contrast to whites and African Americans who improved over time on all measures. Attitudes toward medications did not differ across ethnic/racial groups. Conclusions African Americans show some greater improvements with lithium than non-Hispanic whites, and Hispanics showed more consistent improvements in the lithium group. The impact of low-dose lithium should be studied in a larger sample as there may be particular benefit for African Americans and Hispanics. Given that the control group (regardless of ethnicity/race) had significant improvements, optimized treatment may be beneficial for any ethnic group.
KW - African Americans
KW - Bipolar disorder
KW - Health disparities
KW - Hispanics
KW - Lithium
KW - Treatment outcome
UR - http://www.scopus.com/inward/record.url?scp=84925711482&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84925711482&partnerID=8YFLogxK
U2 - 10.1016/j.jad.2015.02.035
DO - 10.1016/j.jad.2015.02.035
M3 - Article
C2 - 25827507
AN - SCOPUS:84925711482
VL - 178
SP - 224
EP - 228
JO - Journal of Affective Disorders
JF - Journal of Affective Disorders
SN - 0165-0327
M1 - 7320
ER -