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Table 1 Descriptive statistics for variables measured at study entry. Mean (SD) for quantitative variables and proportion for categorical variables

From: Joint modeling of multivariate longitudinal data and survival data in several observational studies of Huntington’s disease

 

Enroll-HD

PREDICT-HD

REGISTRY

Track-HD

N

643

873

481

150

N obs

1.44(0.67)

4.16(2.73)

2.09(1.43)

3.80(1.85)

Age at Entry

40.23(11.40)

39.69(9.75)

40.60(11.14)

40.57(8.34)

Age at Event

41.77(11.38)

44.64(10.28)

43.61(11.01)

44.47(8.57)

Diagnosis

0.16

0.26

0.40

0.33

Female

0.61

0.64

0.56

0.54

CAG

42.54(1.94)

42.51(1.98)

42.76(2.00)

42.99(1.94)

TMS

4.37(5.75)

4.83(5.13)

4.72(6.89)

2.89(2.16)

SDMT

48.86(13.01)

51.02(11.69)

45.11(13.82)

51.93(9.95)

  1. Note. Nobs number of observations per participant, CAG cytosine-adenine-guanine expansion, TMS total motor score, SDMT symbol digit modalities test