Table 5.

Audiometry results by duration of treatment

	Treatment duration <7 days (N = 192)	Treatment duration ≥7 days (N = 56)	p value (<0.05)
First audiometry AC, dB
6,000 Hz, average ± SD	33.51±21.3	36.18±22.79	0.268
8,000 Hz, average ± SD	31.21±22.53	31.58±23.16	0.925
First audiometry BC, dB
3,000 Hz, average ± SD	27.16±17.38	30.86±18.32	0.3
4,000 Hz, average ± SD	31.47±17.44	35.69±19.85	0.247
Second audiometry AC, dB
6,000 Hz, average ± SD	20.09±14.57	27.63±20.19	0.032
8,000 Hz, average ± SD	18.78±16.71	24.21±17.45	0.067
Second audiometry BC, dB
3,000 Hz, average ± SD	18.51±12	28.41±16.78	0.015
4,000 Hz, average ± SD	21.82±12.38	33.41±19.23	0.012
AC difference, dB
6,000 Hz, average ± SD	13.61±16.88	8.55±11.26	0.076
8,000 Hz, average ± SD	12.57±17.06	7.37±14.18	0.076
BC difference, dB
3,000 Hz, average ± SD	10.92±14.77	7.05±9.96	0.15
4,000 Hz, average ± SD	12.1±14.7	8.41±13.92	0.292

AC, air conduction; BC, bone conduction.