Table 4.

Results of Audiometry

No. Patients
Severity of Hearing Loss	First Audiometry, No. (%)	Second Audiometry, No. (%)
No HL	10 (43)	7 (39)
Mild HL	5 (22)	5 (28)
Moderate HL	5 (22)	3 (17)
Severe HL	2 (9)	2 (11)
Profound HL	1 (4)	1 (5)

Classification of sensorineural hearing loss in patients with bacterial meningitis with and without age and sex adjustment. Classification is based on PTA and ΔPTA in the worse ear. No hearing loss (≤20 dB HL), mild (21–40 dB HL), moderate (41–55 dB HL), moderately severe (56–70 dB HL), severe (71–90 dB HL), profound (>90 dB HL). Audiometries were performed 13 days (median) and 60 days (median) after hospitalization. First audiometry (n = 23), second audiometry (n = 18).

Abbreviations: HL, hearing loss; PTA, pure-tone average.