TABLE 4.
Depict the comparison of age characteristics for NPC and Control groups
| t‐test for equality of means | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Levene's test for equality of variances | t | df | Sig. (2‐tailed) | Mean difference | Std. error difference | 95% Confidence interval of the difference | |||
| F | Sig. | Lower | Upper | ||||||
| Age | 0.164 | 0.686 | 0.791 | 86 | 0.433 | 1.541 | 1.947 | −2.380 | 5.462 |
| Implant age | 2.062 | 0.155 | 1.992 | 86 | 0.051 | 4.077 | 2.047 | −0.22 | 8.177 |
| Duration of profound loss | 1.743 | 0.190 | −0.085 | 83 | 0.933 | −1.447 | 1.710 | −3.584 | 3.295 |
Abbreviations: df, degree of freedom; Sig, significance; Std. error difference = Standard error difference; t, t value in t‐test.