The effect of age at time of cochlear implantation on the pragmatic development of the prelingual hearing impaired children

The Egyptian Journal of Otolaryngology

Table 1 The demographic data of the participated children

		Prelingual SNHL children CI before 3 years	Prelingual SNHL children CI after 3 years	Value	p value
The chronological age range (min.–max.), in years		4.00–7.40	4.50–7.40	–
The chronological age (mean ± SD), in years		5.9 ± 1.26	6.09 ± 1.09	t = 1.92	0.06*
IQ (mean ± SD) *******		90.2 ± 7.29	90.5±6.5	t = 1.23	0.23*
Mental age (mean ± SD), in years***		5.4 ± 1.29	5.5±0.75	t = 0.55	0.58*
Gender (Number %)	Male	16 (53.3%)	18 (60%)	χ² = 0.27	0.60**
Gender (Number %)	Female	14 (46.7%)	12 (40%)	χ² = 0.27	0.60**

*Paired t test, p value significant at < 0.05
**Chi-square test (χ²); p value significant at < 0.05
***IQ ratio and the mental age were the data obtained by the Stanford-Binet intelligence scale, Arabic Version (5th edition) [16]