		Chemical products	Forced and/or maintained postures	Repetitive movements	Machines capable of causing injury	Old machinery/in poor condition	[Noise	[Vibrations	Visual strain/ inadequate illuminance	Biological agents	Isolated work	Monotonous work	Extended shifts	Stress
Swapping toxic chemical agents	Cc	−0.062	−0.017	−0.067	0.031	−0.090	−0.108	−0.140	−0.090	−0.017	−0.036	0.056	−0.087	0.106
Swapping toxic chemical agents	Sig	0.330	0.800	0.309	0.619	0.164	0.092	0.030	0.153	0.793	0.573	0.387	0.165	0.093
Safety Data Sheets	Cc	−0.028	0.158	−0.061	−0.085	−0.010	−0.055	−0.019	−0.115	−0.079	−0.036	0.003	−0.034	0.035
Safety Data Sheets	Sig	0.671	0.022	0.373	0.193	0.882	0.407	0.778	0.074	0.225	0.585	0.966	0.600	0.592
Breaks at work	Cc	−0.129	−0.167	−0.130	0.058	−0.025	0.115	0.073	0.007	−0.059	0.053	0.166	−0.059	−0.027
Breaks at work	Sig	0.046	0.015	0.054	0.369	0.707	0.078	0.264	0.915	0.361	0.413	0.012	0.352	0.677
Ventilation system	Cc	−0.155	−0.031	−0.031	0.028	−0.027	0.057	0.073	0.019	0.025	0.083	0.066	−0.037	0.051
Ventilation system	Sig	0.014	0.636	0.639	0.655	0.675	0.372	0.254	0.766	0.693	0.189	0.308	0.547	0.414
Electric chair for customer	Cc	−0.105	−0.062	0.133	−0.085	−0.029	−0.073	−0.055	−0.136	−0.056	0.064	−0.013	−0.023	−0.009
Electric chair for customer	Sig	0.096	0.354	0.044	0.177	0.654	0.254	0.386	0.030	0.373	0.312	0.843	0.715	0.891
Electric chair for tattoo artist	Cc	−0.047	−0.053	0.094	−0.083	−0.027	−0.056	0.030	−0.021	0.036	0.018	−0.033	−0.010	−0.068
Electric chair for tattoo artist	Sig	0.446	0.421	0.146	0.179	0.667	0.370	0.632	0.734	0.566	0.770	0.607	0.868	0.272
Tattoo scheduling	Cc	−0.100	0.028	0.020	−0.076	−0.113	−0.063	−0.124	−0.016	−0.040	0.050	0.077	0.014	0.003
Tattoo scheduling	Sig	0.120	0.682	0.765	0.237	0.085	0.328	0.057	0.806	0.538	0.436	0.242	0.820	0.963
Disinfection methods	Cc	−0.066	0.056	−0.070	−0.038	−0.067	−0.115	−0.018	−0.101	−0.085	−0.093	−0.004	−0.168	−0.085
Disinfection methods	Sig	0.309	0.414	0.300	0.557	0.311	0.082	0.783	0.115	0.189	0.155	0.947	0.009	0.191
Autoclave to sterilize	Cc	−0.065	0.049	−0.075	0.005	−0.064	−0.003	0.048	−0.021	−0.064	.133^*	−0.034	−0.119	−0.094
Autoclave to sterilize	Sig	0.301	0.464	0.253	0.934	0.323	0.963	0.454	0.731	0.312	0.035	0.601	0.055	0.133