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. 2021 Sep 13;4(9):e2121937. doi: 10.1001/jamanetworkopen.2021.21937

Table 2. Outcomes of Children and Adults With Conservatively Managed SS.

Domain and comparison data Standardized mean group differences Prevalence rates
Studies, No. Participants with SS, No. Hedges g (95% CI) P value I 2 τ N fs Studies, No. Participants with SS, No. Prevalence (95% CI) Studies, No. Participants with SS, No. OR (95% CI)a
Objective measures
General cognition
Peers 1 30 −0.08 (−0.67 to 0.51) .79 NA NA NA 2 65 0.05 (0.02 to 0.14) NA NA NA
Normsb 2 17 0.19 (−0.29 to 0.67) .43 0.00 0.00 0
Motor functioning, norms 1 13 −0.15 (−0.70 to 0.39) .59 NA NA NA NA NA NA NA NA NA
Verbal abilities, norms 1 14 0.09 (−0.44 to 0.63) .74 NA NA NA 1 14 0.07 (0.01 to 0.37) 1 13 0.33 (0.02 to 6.65)
Visuospatial abilities, norms 1 14 0.02 (−0.51 to 0.56) .93 NA NA NA 1 17 0.07 (0.01 to 0.36) 1 16 0.69 (0.04 to 11.11)
Adaptive and social skills, norms 1 13 −0.14 (−0.69 to 0.41) .62 NA NA NA NA NA NA NA NA NA
Arithmetic NA NA NA NA NA NA NA NA NA NA 1 18 0.71 (0.04 to 12.43)
Attention NA NA NA NA NA NA NA 1 19 0.13 (0.03 to 0.41) 1 26 1.04 (0.48 to 2.27)
Executive function NA NA NA NA NA NA NA 1 12 0.08 (0.01 to 0.41) NA NA NA
Global development, norms 1 23 0.58 (0.17 to 0.99) .01 NA NA NA NA NA NA NA NA NA
Memory: shorter-term NA NA NA NA NA NA NA 1 18 0.09 (0.03 to 0.23) 1 16 0.70 (0.05 to 10.33)
Processing speed NA NA NA NA NA NA NA 1 14 0.07 (0.01 to 0.37) 1 14 0.31 (0.01 to 6.12)
Subjective measures
Behavior
Externalizing, norms 1 24 −0.25 (−0.65 to 0.15) .22 NA NA NA NA NA NA NA NA NA
Internalizing, norms 1 24 −0.30 (−0.70 to 0.10) .14 NA NA NA NA NA NA NA NA NA
Overall, norms 1 24 −0.29 (−0.69 to 0.11) .16 NA NA NA NA NA NA NA NA NA
Quality of life, norms 1 24 0.00 (−0.40 to 0.40) >.99 NA NA NA NA NA NA NA NA NA

Abbreviations: NA, not applicable; Nfs, Orwin failsafe N; OR, odds ratio; SS, sagittal synostosis.

a

ORs are shown on a logarithmic scale.

b

Norms refers to comparisons against normative data for each measure.