Sleep factors

Chinese Athens insomnia scale-5

Difficulty falling sleep

0: No problem

1: Slightly delayed

2: Markedly delayed

3: Very delayed or did not sleep at all

Difficulty staying sleep

0: No problem

1: Minor problem

2: Considerable problem

3: Serious problem or did not sleep at all

Non-refreshing sleep

0: Satisfactory

1: Slightly unsatisfactory

2: Markedly unsatisfactory

3: Very unsatisfactory or did not sleep at all

Frequent awaking from sleep or dreams

0: Not earlier

1: A little earlier

2: Markedly earlier

3: Much earlier or did not sleep at all

Total sleep duration

0: Sufficient

1: Slightly insufficient

2: Markedly insufficient

3: Very insufficient or did not sleep at all