Variables	Items	Number N	Complications		p
Variables	Items	Number N	n	%	p
Age of patient (years)	<30	91	22	24.2
	30 - 59	207	73	35.3	0.161
	≥60	117	36	20.8
Gender	Male	228	69	30.3
Gender	Female	187	62	33.2	0.528
Patient cooperation level	Calm	393	114	29.0
Patient cooperation level	Agitation	22	17	77.3	<0.0001
Insertion site of PVC	Wrist	134	29	21.6
	Back of the hand	89	20	22.5	0.037
	Forearm	140	59	42.1	0.118
	Elbow bend	40	17	42.5	0.001
	Others*	12	6	50.0	0.163
Type of operator	Nurse	305	36	32.7
Type of operator	Others**	110	95	31.1	0.760
Job tenure	<3 ans	321	99	30.8
Job tenure	≥3 ans	94	32	34.0	0.557
PVC gauge	Gauge 18	46	22	47.8
PVC gauge	Others***	369	109	29.5	0.048
Number of vein punctures	1	370	109	29.5
Number of vein punctures	2 - 3	45	22	48.9	0.008
Infusion solution: 10% hypertonic glucose dextrose	No	379	113	29.8
Infusion solution: 10% hypertonic glucose dextrose	Yes	36	18	50.0	0.013
Convenience	Patient on the floor	196	69	35.2	0.131
	On a chair	42	7	16.7
	On examination table	177	55	31.1	0.852
Duration of catheterization	<72 hours	351	76	21.7
Duration of catheterization	≥72 hours	64	55	85.9	<0.0001