Table 2.

Preventable adverse events (pAEs) overall and categories before and after the communication training proportionately to Adverse Events (AEs)

pAE	2018		2020		Difference	p-value
	Total	Percentage	Total	Percentage		pAEs proportionately to AEs
pAEs overall	88	13.35%	73	8.83%	-33.90%	0.005a
Peripartum therapy delay	39	44.32%	37	50.68%	14.37%	0.209a
Diagnostic error	32	36.36%	16	21.92%	-39.73%	0.002a
Inadequate maternal birth position	30	34.09%	17	23.29%	-31.69%	0.006a
Organizational errors	29	32.95%	21	28.77%	-12.71%	0.49a
Inadequate fetal monitoring	16	18.18%	10	13.70%	-24.66%	0.75a
Medication error	2	2.27%	1	1.37%	-39.73%	0.588b

a Pearson-Chi Quadrat, b Fisher Test