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. 2017 Oct 31;83(22):e01369-17. doi: 10.1128/AEM.01369-17

TABLE 3.

Unadjusted and adjusted logistic regression models at the baseline visita

Outcome variable Unadjusted model
 Adjusted model Ab
 Adjusted model Bc
ORd (95% CI) P valuee OR (95% CI) P valuee OR (95% CI) P valuee
Bedroom 1.74 (0.91–3.33) 0.09 2.94 (0.89–9.74) 0.08 1.81 (0.67–4.87) 0.24
Touched site 1.58 (0.65–3.81) 0.31 0.61 (0.15–2.54) 0.49 1.34 (0.41–4.43) 0.62
HH size (no. of people)
    1–2 3.18 (0.88–11.48) 0.08 7.06 (1.06–47.14) 0.04* 3.88 (0.69–21.87) 0.12
    3 1.06 (0.30–3.71) 0.93 1.23 (0.31–4.85) 0.76 0.45 (0.10–2.02) 0.30
    4 2.86 (0.50–16.36) 0.23 10.86 (1.11–106.65) 0.04* 1.88 (0.26–13.50) 0.53
    ≥5 Ref Ref Ref Ref Ref Ref
House type
    Attached Ref Ref Ref Ref Ref Ref
    Single family 2.23 (0.70–7.20) 0.17 1.95 (0.40–9.59) 0.41 1.59 (0.37–6.77) 0.52
    Apartment 2.56 (0.41–15.90) 0.31 4.68 (0.55–39.79) 0.16 2.08 (0.20–21.85) 0.54
Domestic pets 1.18 (0.94–1.48) 0.16 1.32 (0.98–1.77) 0.07 1.31 (1.04–1.65) 0.02*
Season
    Summer Ref Ref Ref Ref Ref Ref
    Fall 1.80 (0.39–8.36) 0.45 2.20 (0.32–15.20) 0.42 1.42 (0.23–8.93) 0.70
    Winter 1.13 (0.39–8.36) 0.45 3.23 (0.54–19.26) 0.19 4.14 (0.60–28.73) 0.15
    Spring 0.67 (0.17–2.58) 0.55 1.93 (0.29–12.91) 0.49 1.68 (0.26–10.91) 0.58
Unwanted pests 0.54 (0.10–3.00) 0.47 1.29 (0.14–11.67) 0.82 0.63 (0.10–4.05) 0.62
No EPA cleaner 1.19 (0.46–3.10) 0.72 1.59 (0.54–4.70) 0.40 0.75 (0.22–2.57) 0.65
Decolonization
Any HH Abx use
    No use Ref Ref Ref Ref
    Human or pet use 13.36 (1.36–131.15) 0.03* 70.35 (1.33–3718.66) 0.04*
Individual Abx use
    Clinda 0.29 (0.11–0.80) 0.02* 0.27 (0.08–0.90) 0.03*
    Sulfa 1.93 (0.73–5.07) 0.18 3.06 (0.98–9.56) 0.05*
    Mup 0.59 (1.02–2.84) 0.46 0.76 (0.06–9.84) 0.83
a

Data are for 104 isolates. HH, household; Abx, antimicrobial; Clinda, clindamycin; Sulfa, trimethoprim-sulfamethoxazole; Mup, mupirocin; Ref, reference group.

b

Model A evaluates any use of antimicrobial drugs by human or domestic animal occupants.

c

Model B evaluates mupirocin, clindamycin, and trimethoprim-sulfamethoxazole use as individual variables.

d

ORs for adjusted models used logistic regression and took all listed covariates into account. Rural was not included in the models due to a zero stratum (cf. Table 1).

e

P values for all covariates were obtained using logistic regression. Significance, indicated in bold, is as follows: *, P ≤ 0.05.