Table 3. Relationship between clinical and demographic variables and procedural assertiveness, Curitiba, Paraná, Brazil, 2023.

Variable	Success (median)	Failure (median)	p *
DIVAscore **	6 (6-8)	6 (6-7)	0.784
Gestational Age at Birth (weeks)	35 (32-37)	36 (35-38)	0.276
Age at Insertion (days)	33 (17-47)	31 (15-45)	0.725
Birth weight (grams)	2140 (1300-2560)	2470 (2150-3000)	0.136

^*p - <0.05,

^**DIVA - Difficult Intravenous Access; p value - Kruskal-Wallis.