Table 3. Statistical analysis of work accidents (Student’s t-test for independent samples), Belém, Pará, Brazil, 2009-2016 (n=211).

Occupational category
	Nurses (n=25)		Nursing technicians (n=186)		Significance
	Mean	Standard deviation	Mean	Standard deviation
Age	42.04	10.39	38.89	8.54	0.157
Number of accidents	2.50	1.51	13.29	6.47	0.000*
Sex
	Male (n=59)		Female (n=152)		Significance
	Mean	Standard deviation	Mean	Standard deviation
Age	39.94	8.88	37.51	8.46	0.072

*Statistically significant.