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Table 5 Regression for incidence rates (with overdispersion and offset term) of various types of episodes with significant influence of factor scores, in a sample of bipolar patients

From: Patterns of childhood adverse events are associated with clinical characteristics of bipolar disorder

Outcome Covariate Estimate (st. error) df** p-value
Depressive episodes Intercept −1.5 (0.3)   <0.001
Gender, male 0 (Ref)   
female 0.4 (0.17)   0.02
s(age)*   4.7 <0.001
s(Factor 3)*   6.6 0.04
Hypo/manic episodes Intercept −1 (0.09)   <0.001
s(age)*   8.7 <0.001
s(Factor 1)*   8.3 <0.001
age*Factor 1 −0.025 (0.008)   0.001
Psychotic episodes Intercept −2.2 (0.16)   <0.001
s(age)*   1.65 0.001
s(Factor 2)*   2.8 0.009
age*Factor 2 −0.032 (0.016)   0.042
Self – harm (N=123) Intercept −5.56 (1.56)   <0.001
Gender, male 0 (Ref)   
female 3.08 (0.6)   <0.001
age −0.064 (0.02)   0.002
s(Factor 3)*   7.8 <0.001
age*Factor 3 0.19 (0.03)   <0.001
Hospitalizations age −0.048 (0.003)   <0.001
Factor 1 −0.33 (0.11)   0.003
  1. *: s(.) = smoothed (.).
  2. **: Estimated df corresponds to amount of smoothing (approximate p-value).
  3. Factor 1 = emotional abuse/neglect-revised; Factor 2 = sexual abuse-revised; Factor 3 = physical abuse-revised.