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Table 1 Comparison of antimicrobial resistance to 21 antibiotics among Shigella strains from Shanxi Province, China

From: Antimicrobial resistance and genetic characterization of Shigella spp. in Shanxi Province, China, during 2006–2016

Antibiotic S. flexneri S. sonnei Total χ 2 P value
No. Tested No. Resistant (%) No. Tested No. Resistant (%) No. Tested No. Resistant (%)
AMP 337 332 98.5 137 131 95.6 474 463 97.7 3.6 0.06
PIP 337 44 13.1 137 32 23.4 474 76 16.0 7.7 0.01
TIC 337 320 95.0 137 130 94.9 474 450 94.9 0.0 0.98
CFZ 337 67 19.9 137 57 41.6 474 124 26.2 23.8 0.00
FOX 337 1 0.3 137 0 0.0 474 1 0.2   
CRO 337 68 20.2 137 55 40.2 474 123 26.0 20.2 0.00
CAZ 337 1 0.3 137 2 1.5 474 3 0.6 2.1 0.20
CFP 337 47 14.0 137 38 27.7 474 85 17.9 12.6 0.00
FEP 337 0 0.0 137 0 0.0 474 0 0.0   
NOR 337 84 24.9 137 2 1.5 474 86 18.1 31.6 0.00
LEV 337 11 3.3 137 0 0.0 474 11 2.3 4.6 0.04
IMP 337 3 0.9 137 1 0.7 474 4 0.8 0.0 1.00
GEN 337 82 24.3 137 110 80.3 474 192 40.5 166.9 0.00
TO 337 29 8.6 137 13 9.5 474 42 8.9 0.1 1.00
AK 337 1 0.3 137 0 0.0 474 1 0.2   
SXT 337 287 85.2 137 132 96.4 474 419 88.4 105.3 0.00
TE 337 248 73.6 137 123 89.8 474 371 78.3 15.0 0.00
C 337 265 78.6 137 7 5.1 474 272 57.4 215.3 0.00
ATM 337 17 5.0 137 10 7.3 474 27 5.7 7.1 0.01
NIT 337 0 0.0 137 0 0.0 474 0 0.0   
TIM 337 5 1.5 137 3 2.2 474 8 1.7 0.2 0.70
  1. A p value that < 0.05 was considered statistically significant that compared the resistance rates between S. flexneri and S. sonnei