Randomized placebo-controlled clinical trial investigating the effect of antioxidants and a vasodilator on overall safety and residual hearing preservation in cochlear implant patients

Table 7 Hearing loss 3 months post first fitting compared to baseline: results of the subgroup analysis by age—ITT set

Subgroup	Effect	Estimate	Standard error	p value	95% confidence interval
Younger or equal to 55 years	ACEMg - placebo	− 8.24	7.7076232	0.2980	(− 24.31, 7.84)
Older than 55 years	ACEMg - placebo	4.56	6.5936026	0.4981	(− 9.35, 18.48)

ISSN: 1745-6215