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Table 2 Characteristics of fatigue severity scale scores

From: Evaluating fatigue in patients recovering from COVID-19: validation of the fatigue severity scale and single item screening questions

FSS items

Hospitalized

Non-hospitalized

n (%)

Mean ± SD

Floor n (%)

Ceiling n (%)

Skew

n (%)

Mean (SD)

Floor n (%)

Ceiling n (%)

Skew

1

529 (96.5)

4.8 ± 2.1

72 (13.6)

166 (31.4)

 − 0.6

541 (99.1)

5.9 ± 1.7

26 (4.8)

296 (54.7)

 − 1.6

2

524 (95.8)

4.4 ± 2.0

75 (14.3)

111 (21.2)

 − 0.3

536 (98.2)

5.0 ± 2.0

55 (10.3)

194 (36.2)

 − 0.7

3

529 (96.5)

4.5 ± 2.1

78 (14.7)

126 (23.8)

 − 0.4

537 (98.4)

5.4 ± 1.8

36 (6.7)

203 (37.8)

 − 1.0

4

527 (96.2)

4.5 ± 2.1

70 (13.3)

124 (23.5)

 − 0.4

540 (98.9)

5.3 ± 1.9

43 (7.9)

210 (38.5)

 − 1.0

5

526 (96.0)

4.0 ± 2.1

100 (18.2)

88 (16.1)

 − 0.1

536 (98.2)

5.0 ± 2.0

57 (10.6)

178 (33.2)

 − 0.7

6

529 (96.5)

4.3 ± 2.1

87 (16.4)

107 (20.2)

 − 0.2

536 (98.2)

5.0 ± 2.1

67 (12.5)

177 (33.0)

 − 0.8

7

527 (96.2)

4.3 ± 2.1

90 (17.1)

105 (19.9)

 − 0.3

538 (98.5)

5.1 ± 2.0

61 (11.3)

196 (36.4)

 − 0.9

8

530 (96.7)

4.4 ± 2.2

96 (18.1)

132 (24.9)

 − 0.3

539 (98.7)

5.3 ± 2.1

65 (12.1)

240 (44.5)

 − 1.0

9

529 (96.5)

4.2 ± 2.2

117 (22.1)

121 (22.9)

 − 0.2

539 (98.7)

5.3 ± 2.1

57 (10.6)

248 (46.0)

 − 1.0

FSS Score*

528 (96.4)

4.4 ± 1.8

31 (5.9)

40 (7.6)

 − 0.3

536 (98.2)

5.2 ± 1.7

12 (2.2)

87 (16.2)

 − 1.0

  1. FSS fatigue severity scale; SD standard deviation
  2. *Calculated if at least 8/9 items completed