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Table 3 Clinical efficacy of ketamine compared with placebo for both cohorts combined

From: A randomized, placebo-controlled, cross-over trial of ketamine in Rett syndrome

Both Cohorts (n = 21)

Measure

Placebo

LSM (SE)

Ketamine

LSM (SE)

Difference

(95% CI)

Treatment

(p-value)

MBA

44.56 (2.63)

45.57 (2.63)

1.01 (−0.73, 2.75)

0.2373

CGI-I

3.81 (0.09)

3.79 (0.09)

−0.01 (−0.22, 0.19)

0.8895

ClinDom

33.25 (0.96)

33.67 (0.96)

0.42 (−0.63, 1.46)

0.4149

RSBQ

38.04 (2.77)

38.97 (2.77)

0.93 (−2.13, 3.99)

0.5315

CSHQ

106.39 (5.90)

99.19 (5.90)

−7.19 (−16.48, 2.09)

0.1213

ParDom

33.58 (1.93)

34.29 (1.93)

0.71 (−0.97, 2.39)

0.3877

RTT CIA

34.50 (3.44)

33.54 (3.44)

−0.96 (−3.73, 1.81)

0.4779

  1. MBA Motor Behavior Assessment. Higher score indicates more severe RTT symptoms. CGI-I Clinical Global Impression-Improvement. Lower scores indicate more improvement. ClinDom Clinician Domain Likert Scale. Higher scores indicates more severe Rett symptoms. RSBQ Rett Syndrome Behavior Questionnaire. Higher score indicates more severe RTT symptoms. CSHQ Children’s Sleep Habits Questionnaire. Higher score indicates more sleep problems. ParDom Parent Domain Likert Scale. Higher scores indicates more severe Rett symptoms. RTT CIA Rett Caregiver Burden Inventory Assessment. Higher score indicates higher caregiver burden. LSM Least Square Mean, SE Standard Error, CI Confidence Interval