Table 6 Bivariable and multivariable logistic regression analysis of factors associated with non-prescribed antimicrobial use among customers in drug retailer outlets in Central Zone, Tigray, Ethiopia, 2016

 Male

1.78 (1.33, 2.39)^b

1.72 (1.21, 2.44)^b

 Female

1

 18–27

1

 28–37

0.64 (0.45, 0.90)^b

 38–47

0.64 (0.42, 0.98)^b

 48–57

0.69 (0.40, 1.18)^a

 ≥ 58

0.93 (0.55, 1.59)

 Urban

1

 Rural

1.49 (1.07, 2.07)^b

 Married

1

 Unmarried

1.45 (1.05, 1.98)^b

 Divorced/Widowed

1.20 (0.64, 2.27)

 < 6.51

1.67 (1.13, 2.48)^b

 6.52–19.48

0.96 (0.61, 1.50)

 19.49–32.50

0.78 (0.48, 1.26)

 ≥ 32.51

1

 Systemic Infection

1

 Topical Infection

0.94 (0.60, 1.47)

 Eye/Ear Infection

1.51 (0.98, 2.31)^a

 Public health facilities

1

1

 Private pharmacies/drug stores

0.88 (0.65, 1.20)

-

 Others (Private clinic, NGO)

0.58 (0.30, 1.09)^a

0.47 (0.23, 0.98)

 Within 5 km radius

1

 Far from 5 km radius

1.44 (0.97, 2.15)^a

 Fast

1

1

 Moderate

2.26 (1.51, 3.39)^b

1.92 (1.20, 3.09)^b

 Delay

1.61 (1.12, 2.31)^b

1.56 (1.03, 2.38)

 No

1

1

 Yes

1.46 (1.06, 2.01)^b

3.51 (2.45, 5.02)^b

 No

1

 Yes

3.61 (2.68, 4.86)^b

 None

1

1

 1–3

2.47 (1.73, 3.53)^b

2.04 (1.36, 3.06)^b

  ≥ 4

1.39 (0.97, 2.01)^a

2.66 (1.24, 5.68)