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Table 1 Demographic and clinical characteristics of the ALS populations included in the study

From: Leveraging process mining for modeling progression trajectories in amyotrophic lateral sclerosis

Features

PRO-ACT

ALS–BS

p-value

n

 

5389

43

–

Sex

Female

2018 (37.4)

21 (48.8)

0.123

Male

3371 (62.6)

22 (51.2)

 

Onset site

Bulbar

1122 (20.8)

11 (25.6)

<0.01 *

Spinal

3875 (71.9)

31 (72.1)

Spinal and bulbar

59 (1.1)

1 (2.3)

Other

333 (6.2)

0 (0.0)

Age at onset

[years]

55.26 ± 11.68

59.14 ± 10.84

0.034

FVC at baseline

%

82.24 ± 17.94

96.47 ± 15.35

<0.01

Weight at baseline

[kg]

75.86 ± 15.79

68.85 ± 9.20

0.019

Total ALSFRS at baseline

[score/40]

30.12 ± 5.47

36.12 ± 9.20

<0.01

Disease duration

[days]

1063.03 ± 456.22

1241.67 ± 722.13

0.201

Follow-up duration

[days]

407.06 ± 175.27

931.49 ± 627.49

<0.01

Follow-up visits

 

12.74 ± 6.23

7.44 ± 2.80

<0.01

Survival

Censored

3967 (73.6)

23 (53.5)

<0.01

 

Dead/Tracheostomized

1442 (26.4)

20 (46.5)

  1. Numerical features are described using mean ± standard deviation, categorical features are described using cardinality (percentage). Kruskal-Wallis and \(\chi ^{2}\) tests at .01 significance level were used for assessing the equality of the distributions of the continuous and categorical variables, respectively, in the two datasets. * indicates a non-complete fulfillment of the statistical test’s assumptions. FVC = Forced Vital Capacity, ALSFRS = ALS Functional Rating Scale