Antibiotic-Resistant Bacteria Are Major Threats of Otitis Media in Wollo Area, Northeastern Ethiopia: A Ten-Year Retrospective Analysis

Table 1

Age and sex distribution of bacteria positive middle ear discharges diagnosed from 2001 to 2011 in Dessie Regional Laboratory ().

Variables	Frequency of bacteria positive ear discharges Number (%)		value
Sex
Men	516 (50.4)
Women	503 (49.1)
Unspecified	5 (0.5)
Age group in years		45
<5	153 (14.9)
5–15	253 (24.7)
16–35	434 (42.4)
36–50	105 (10.3)
≥51	47 (4.6)
Unspecified	32 (3.1)

: chi-square test; implies in each year of the study period “age’’ has a significant influence on developing bacterial middle ear infection.