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. Author manuscript; available in PMC: 2022 Apr 1.
Published in final edited form as: Pediatr Neurol. 2021 Jan 23;117:29–33. doi: 10.1016/j.pediatrneurol.2021.01.004

Table 1.

Patient Characteristics

Variable Holter Group (N = 131) Non-Holter Group (N = 325) P-value
Sex, N (%) (Holter=130, No Holter=308) 0.6600
 Female 62 (47.7) 154 (50.0)
 Male 68 (52.3) 154 (50.0)
Age of Onset, Median (IQR) (Holter=111, No Holter=307) 7.0 (5.0–13.0) 11.0 (7.0–15.0) <.0001
Age at Time of Holter (years), (N = 130), Median (IQR) 17.3 (12.9–22.8) NA
Duration of Illness (years), Median (IQR) (N = 110) 8.7 (5.3–11.6) NA
Short GAA Repeat Length, Median (IQR) (Holter=114, No Holter=302) 706.0 (558.0–833.0) 690.0 (500.0–800.0) 0.1400
FARS Score, Median (IQR) (N = 58) 59.9 (46.7–74.0) NA

Patient and disease characteristics among those who had Holter data available and those who did not. Abbreviation: FARS, Friedreich Ataxia Rating Scale; IQR, interquartile range