Items

Before supervision

After supervision

X2

p

Wearing PPE

2.80% (20/715)

0.84% (6/715)

14.873

<0.001

Removing PPE

5.87% (84/1430)

0.84% (24/2860)

56.974

<0.001

Personal Behavior

8.38% (44/525)

1.90% (10/525)

22.568

<0.001