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. Author manuscript; available in PMC: 2017 Jul 1.
Published in final edited form as: Am J Psychiatry. 2016 Feb 19;173(7):695–704. doi: 10.1176/appi.ajp.2015.15040414

Table 2.

Impact of individual baseline factors on the hazard of developing bipolar spectrum (and bipolar-I/II) over follow-up, adjusting for demographics, parental non-bipolar categorical disorders, and offspring non-bipolar categorical disorders. Hazard ratios associated with a one standard-deviation increase in each factor are given.

Bipolar Spectrum (n=44) Bipolar I/II (n=15)

X2 Hazard Ratio 95% CI p X2 Hazard Ratio 95% CI P

 Parent
 Reports
Internalizinga 18.70 1.78 1.37, 2.31 <0.0001b 11.85 2.07 1.37, 3.12 0.0006b
Externalizing 4.11 1.41 1.01, 1.95 0.04 3.91 1.69 1.00, 2.84 0.05
Inattention/Disinhibition 2.36 1.16 0.96, 1.41 0.1 1.26 1.16 0.90, 1.51 0.3

 Child
 Reports
Internalizing 8.81 1.54 1.16, 2.06 0.003b 3.15 1.60 0.95, 2.69 0.08
Externalizing 8.54 1.78 1.21, 2.63 0.004b 4.62 2.07 1.07, 4.01 0.03
Affective Labilitya 13.58 1.66 1.27, 2.18 0.0002b 13.97 2.24 1.47, 3.42 0.0002b

 Depression
 Rating Scale
Depressive/Atypical Symptoms 1.95 1.24 0.92, 1.67 0.2 0.13 1.09 0.68, 1.77 0.7
Sleep Problems 0.03 0.98 0.75, 1.28 0.9 0.02 0.97 0.64, 1.48 0.9
Suicidality 5.70 1.23 1.04, 1.47 0.02b 1.86 1.22 0.92, 1.62 0.2

Mania Rating Scale Total Score 2.03 1.21 0.93, 1.58 0.2 0.53 1.19 0.75, 1.90 0.5
a

Significant in the penalized (Lasso) Cox Regression Model

b

Significant after correcting for multiple comparisons (False Discovery Rate)