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Table 3 Frequency distribution of anxiety levels in the control and the intervention groups at the beginning and the end of the study

From: The role of the ICU liaison nurse services on anxiety in family caregivers of patients after ICU discharge during COVID-19 pandemic: a randomized controlled trial

Levels of the variable anxiety

Control

Intervention

P

z

Frequency

Percent

Frequency

Percent

Pre-intervention anxiety

No anxiety

0

0.0

0

0.0

0.005

2.819

Mild

6

20.0

0

0.0

Moderate to low

7

23.3

3

10.0

Moderate to high

7

23.3

9

30

Relatively severe

8

26.7

13

43

Severe

2

6.7

5

16.7

Post-intervention anxiety

No anxiety

1

3.3

0

0.0

0.425

0.797

Mild

1

3.3

2

6.7

Moderate to low

8

26.7

9

30

Moderate to high

11

36.7

14

46.7

Relatively severe

8

26.7

5

16.7

severe

1

3.3

0

0.0