Table 3.

Correlation between the scales of safety culture aspects and communication practices for both professional groups

Nurses	t0 (2016)					t1(2017)
Variable	1	2	3	4	5	6
1) Supervisor Expectations	–	0.38***	0.44***	0.08	0.31***	0.52***
2) Teamwork Within Units	0.39**	–	0.51***	0.08	0.25***	0.28***
3) Psychological Safety	0.43**	0.56***	–	0.19**	0.35***	0.53***
4) 2-Way-Communication	0.12*	0.19***	0.18**	–	0.41***	0.36***
5) Briefing	0.34***	0.39***	0.35***	0.39***	–	0.55***
6) Feedback	0.40***	0.48***	0.47***	0.28***	0.53***	–
Physicians	t0 (2016)					t1 (2017)
Variable	1	2	3	4	5	6
1) Supervisor Expectations	–	0.50***	0.54***	0.25*	0.51***	0.55***
2) Teamwork Within Units	0.44**	–	0.65***	0.44***	0.54***	0.65***
3) Psychological Safety	0.57***	0.54***	–	0.41***	0.67***	0.61***
4) 2-Way-Communication	0.20*	0.20*	0.19*	–	0.55***	0.50***
5) Briefing	0.44***	0.52***	0.53***	0.40***	–	0.64***
6) Feedback	0.54***	0.52***	0.52***	0.32***	0.67***	–

Notes: Spearman test for linear correlation between Safety culture aspects and Communication practices

Below the diagonal = t₀, above the diagonal = t₁; Higher correlation in either t₀ or t₁ highlighted in bold; significance level: *p < 0.05, **p < 0.01, ***p < 0.001