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Table 2 Heritability estimates of the saccade parameters in SCA2 patients, preclinical carriers and healthy controls

From: Heritability of saccadic eye movements in spinocerebellar ataxia type 2: insights into an endophenotype marker

Variables SCA2 patients Preclinical carriers Healthy controls
  ICC p H ICC p H ICC p H
Saccade velocity (°/s) 0.47 0.002 ~94% 0.19 0.222 NA 0.136 0.289 NA
Saccade accuracy (%) 0.16 0.170 NA 0.20 0.208 NA 0.013 0.473 NA
Saccade latency (ms) 0.16 0.170 NA 0.13 0.294 NA 0.286 0.121 NA
  1. ICC Intraclass correlation coefficient, H heritability, NA Not attributable heritability estimates