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Table 1 Age and sex distribution of common bacterial isolates from various site of infections among patients at Debre Markos Referral Hospital (2011–2014)

From: Bacterial agents and antibiotic resistance profiles of infections from different sites that occurred among patients at Debre Markos Referral Hospital, Ethiopia: a cross-sectional study

Type of isolate Sex Age in years
Male (n = 226) Female (n = 349) P value 0–4
(n = 50)
5–9
(n = 31)
10–14
(n = 43)
15–18
(n = 29)
19–30
(n = 262)
31–44
(n = 84)
45–90
(n = 76)
P value
N (%) N (%) N (%) N (%) N (%) N (%) N (%) N (%) N (%)
S. aureus 38 (16.8) 62 (17.8) 0.76 3 (6) 1 (3.2) 10 (23.3) 5 (17.2) 46 (17.6) 23 (27.4) 12 (15.8) 0.02
E. coli 13 (5.8) 26 (7.4) 0.43 3 (6) 3 (9.7) 1 (3.4) 26 (9.9) 2 (2.4) 4 (5.3) 0.06
P. aeruginosa 12 (5.3) 18 (5.2) 0.94 3 (6) 4 (12.9) 1 (2.3) 1 (3.4) 13 (5) 1 (1.2) 7 (9.2) 0.11
Salmonella spp. 18 (8) 7 (2) 0.001 12 (24) 3 (9.4) 5 (1.9) 2 (2.4) 3 (3.9) <0.001
Shigella spp. 8 (3.5) 2 (0.6) 0.008 4 (8) 2 (6.5) 1 (2.3) 1 (0.4) 2 (2.4) 0.001
N. gonorrhoeae 4 (1.8) 12 (3.4) 0.23 1 (2.3) 2 (6.9) 13 (5) 0.04
S. pyogens 8 (3.5) 9 (2.6) 0.51 1 (2) 5 (16.1) 8 (18.6) 3 (1.1) <0.001
S. pneumoniae 8 (3.5) 8 (2.3) 0.24 2 (6.5) 3 (7) 3 (6.4) 2 (0.8) 6 (7.1) 1 (1.3) 0.002
Klebsiella spp. 5 (2.2) 6 (1.7) 0.68 10 (3.8) 1 (1.2) 0.14
Proteus spp. 1 (0.4) 3 (0.9) NA 2 (0.8) 2 (2.6) NA
Citrobacter spp. 1 (0.4) 2 (0.6) NA 1 (0.4) 2 (2.6) NA
Enterobacter spp. 3 (0.9) NA 3 (1.1) NA
N. meningitidis 3 (0.9) NA 1 (1.2) 2 (2.6) NA
S. agalactiae 3 (0.9) NA 3 (1.1) NA
NG 110 (48.7) 185 (53.2) 0.26 24 (48) 11 (35.5) 19 (44.2) 17 (58.6) 134 (51.1) 46 (54.8) 44 (57.9) 0.26
  1. NA not applicable, NG no growth of organisms, n total number of patients in each category of sex and age