. 2019 Jul 4;19:874. doi: 10.1186/s12889-019-7181-7

Table 2.

Correlation between variables in the study

Variable	Cronbach’s α	1	2	3	4	5	6	7	8	9	10	11	12
1.Gender	–	1.00
2.Age group	–	−0.159^**	1.00
3.Position^a	–	−0.368^ 0.525^	0.185^ 0.322^	1.00
4.Job demand	0.885	0.041	−0.099^**	0.105^ 0.158^	1.00
5.Job control	0.743	−0.119^**	0.116^**	0.157^ −0.139^	− 0.066^**	1.00
6.Social support	0.863	0.005	0.039	0.037 −0.045^*	0.128^**	0.316^**	1.00
7.Job effort	0.920	0.006	−0.140^**	0.122^ 0.170^	0.631^**	−0.111^**	−0.098^**	1.00
8.Job reward	0.925	0.049^*	0.055^*	−0.050^* 0.085^**	−0.315^**	0.180^**	0.399^**	−0.574^**	1.00
9.Over-commitment	0.882	0.008	−0.084^*	0.070^ 0.173^	0.475^**	−0.069^**	−0.183^**	0.682^**	−0.569^**	1.00
10.Helplessness	0.888	0.062^**	−0.115^**	0.037^ 0.144^	0.418^**	−0.188^**	−0.249^**	0.589^**	−0.501^**	0.563^**	1.00
11.Low self-efficacy	0.806	0.058^**	−0.163^**	0.093^ −0.163^	0.004	−0.126^**	− 0.299^**	0.128^**	− 0.251^**	0.151^**	0.224^**	1.00
12. stress perception	0.770	0.066^**	−0.172^**	−0.023 0.197^**	0.318^**	−0.193^**	− 0.339^**	0.521^**	− 0.530^**	0.515^**	0.869^**	0.629^**	1.00
13.Needle-stick injury	–	0.073^**	−0.190^**	0.015 0.258^**	0.400^**	−0.153^**	−0.169^**	0.500^**	−0.424^**	0.450^**	0.538^**	0.191^**	0.528^**

Note:*: p < .05; **: p < .01; Double tailed for all tests; ^a: variable of position has been analyzed by 2 dummy variables, as “0, 0” = technician, “1, 0” = physician (list ahead), “0, 1” = nurse (list behind)