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. Author manuscript; available in PMC: 2020 May 6.
Published in final edited form as: Genet Med. 2019 Nov 6;22(3):590–597. doi: 10.1038/s41436-019-0683-y

Table 3-.

Models Predicting PROMIS Domain Scores

Variable β Estimate 95% Confidence Limits P-value
Pain Interference
Chronic vs. Sporadic Symptoms 7.27 2.07 12.46 0.007
Recurrent vs. Sporadic Symptoms 7.24 3.37 11.11 0.0003
Panhematin Use 2.95 −0.77 6.68 0.12
Neuropathy 6.27 0.08 12.45 0.05
Nausea 5.24 0.98 9.50 0.02
*N=140, R-square=0.229
Depression
Anxiety 5.36 1.86 8.85 0.003
Chronic vs. Sporadic Symptoms 6.88 2.27 11.49 0.004
Recurrent vs. Sporadic Symptoms 4.71 1.34 8.09 0.007
*N=164, R-square=0.128
Physical Function
Chronic vs. Sporadic Symptoms −5.95 −10.52 −1.37 0.01
Recurrent vs. Sporadic Symptoms −4.65 −8.00 −1.30 0.007
Panhematin Use −3.78 −7.08 −0.47 0.03
Neuropathy −9.10 −14.67 −3.54 0.001
Anxiety −3.97 −7.50 −0.43 0.03
*N=142, R-square=0.236
Fatigue
Male 2.92 −2.01 7.85 0.2
Anxiety 2.10 −1.76 5.96 0.3
Neuropathy 5.47 −0.73 11.68 0.08
Chronic vs. Sporadic Symptoms 9.65 4.55 14.74 0.0003
Recurrent vs. Sporadic Symptoms 5.66 1.92 9.40 0.003
PBG Level 0.02 −0.01 0.05 0.2
*N=158, R-square=0.165
Anxiety
Chronic vs. Sporadic Symptoms 4.34 −0.81 9.49 0.1
Recurrent vs. Sporadic Symptoms 2.01 −1.98 5.99 0.3
Male 2.23 −2.94 7.41 0.4
Age at Onset −0.08 −0.24 0.08 0.3
*N=156, R-square=0.034
Sleep Disturbance
Anxiety 2.71 −0.78 6.19 0.1
Chronic vs. Sporadic Symptoms 7.18 2.59 11.78 0.002
Recurrent vs. Sporadic Symptoms 5.35 1.99 8.71 0.002
*N=164, R-square=0.098
Satisfaction with Social Roles
Chronic vs. Sporadic Symptoms −5.04 −10.92 0.85 0.1
Recurrent vs. Sporadic Symptoms −5.20 −9.40 −1.00 0.02
Panhematin Use −4.84 −8.98 −0.70 0.02
Neuropathy −7.80 −15.58 −0.02 0.05
Anxiety −5.99 −10.46 −1.53 0.009
*N=136, R-square=0.183