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Table 3 Clinical risk factors of acquiring the ESBL-producing Escherichia coli and ST131 clone

From: Risk factors and molecular features of sequence type (ST) 131 extended-Spectrum-β-lactamase-producing Escherichia coli in community-onset female genital tract infections

Risk factors ESBL vs non-ESBL ST131 vs non-ST131
  N (%) OR 95% CI P N (%) OR 95% CI P
Preterm labor in pregnancy 3(16.7) 10.911 1.199–99.301 0.0339
Age
 30–39 6(33.3)     5(25.0)    
 40–49 6(33.3) 1.057 0.289–3.861 0.9330 3(15.0) 0.828 0.170–4.026 0.5497
 50–59 2(11.1) 0.385 0.075–1.967 0.2512 4(20.0) 5.541 0.130–236.943 0.8151
 > = 60 4(22.2) 0.625 0.156–2.494 0.5054 8(40.0) 5.130 0.099–266.909 0.3716
Menopause 6(33.3) 0.0365 0.126–1.059 0.0636 12(60.0) 0.208 0.005–8.843 0.4118
IUD 3(16.7) 6.460 1.004–41.568 0.0495 1(5.0) 0.965 0.088–10.645 0.9770
Recurrent within 1 month 14(77.8) 40.130 9.980–161.366 < 0.0001 6(30.0) 1.883 0.105–33.820 0.6677
Nursing home T/I 3(16.7) 3.488 0.709–17.152 0.1242 3(15.0) 1.088 0.096–12.292 0.9459
PID 14(77.8) 0.489 0.113–2.122 0.3396 10(50.0) 0.744 0.164–3.378 0.7017
UTIa 9(50.0) 18.915 5.469–65.411 < 0.0001 11(55.0) 1.513 0.362–6.319 0.5506
Previous antibioticsa 15(83.3) 68.390 14.870–314.531 < 0.0001 6(30.0) 1.172 0.063–21.644 0.9149
  1. ESBL, female genital tract infections with ESBL-producing E. coli; Non-ESBL, female genital tract infections with non-ESBL-producing E. coli; OR, odds ratio; 95% CI, 95% confidential interval; T/I, transfer-in; IUD, intrauterine device; PID, pelvic inflammatory disease; UTI, urinary tract infection; a within one month
  2. Multivariate analysis adjusted for age, pregnancy, intrauterine device use, menopause, admission from the nursing home, PID, recurrent vaginitis, UTI and previous antibiotic treatment within one month