Research Article

Nasal Carriage Rate, Antimicrobial Susceptibility Pattern, and Associated Factors of Staphylococcus aureus with Special Emphasis on MRSA among Urban and Rural Elementary School Children in Gondar, Northwest Ethiopia: A Comparative Cross-Sectional Study

Table 4

Epidemiologic risk factors for Staphylococcus aureus colonization among elementary school children in Gondar town, Northwest Ethiopia, 2018.

CharacteristicsNumber ()Overall Staphylococcus aureus isolates
No. () positive for S. aureusNo. () negative for S. aureusCrude OR (95 CI)P valueAdjusted OR (95 CI)P value

ResidenceUrban345 (55.47)83 (24.06)262 (75.94)0.87 0.6-1.270.48--
Rural277 (44.53)60 (21.66)217 (78.34)1(ref)1(ref)--

SexMale317 (51)79 (24.92)238 (75.08)0.8 0.55-1.160.244--
Female305 (49)64 (20.98)241(79.02)1(ref)1(ref)--

Age in years6-10 years221 (35.5)48 (21.72)173 (78.28)1.20 0.606-2.3810.599--
10-15 years345 (55.5)81 (23.48)264 (76.52)1.09 0.565-2.0900.804--
> 15 years56 (9.0)14 (25)42 (75)1(ref)1(ref)--

Educational statusGrade 1-4308 (49.5)71 (23.05)237 (76.95)0.99 0.684-1.4430.971--
Grade 5-8314 (50.5)72 (22.93)242 (77.07)1(ref)1(ref)--

Family’s monthly income<500 birr295 (47.4)59 (20)236 (80)1.51 0.989-2.3070.0561.38 0.83-2.270.214
500-1000 birr130 (20.9)30 (23.08)100 (76.92)1.26 0.753-2.1050.3801.13 0.65-1.970.66
>1000 birr197 (31.7)54 (27.41)143 (72.59)1(ref)1(ref)1(ref)1(ref)

Family size category2-5301 (48.4)62 (20.6)239 (79.40)1.30 0.893-1.8950.171.33 0.90-1.960.148
>5321 (51.6)81 (25.23)24 0 (74.77)1(ref)1(ref)1(ref)1(ref)

No. of students in classroom category21-4075 (12.06)19 (25.3)56 (74.7)0.38 0.15-0.980.0460.38 0.15-0.980.046
41-60486 (78.14)117 (24.1)369 (75.9)0.41 (0.18-0.90.0310.41 0.18-0.920.031
>6061 (9.8)7 (11.5)54 (88.5)1(ref)1(ref)1(ref)1(ref)

History of chronic diseaseYes77 (12.4)18 (23.38)59 (76.62)1.03 0.58-1.800.931--
No545 (87.6)125 (22.94)420 (77.06)1(ref)1(ref)--

History of hospitalizationYes100 (16.1)23 (23)77 (77)1.00 0.60-1.660.998--
No522 (83.9)120 (22.99)402 (77.01)1(ref)1(ref)--

History of surgeryYes39 (6.3)9 (23)30 (77)1.01 0.47-2.170.989--
No583 (93.7)134 (21.27)449 (77.02)1(ref)1(ref)--

History of visit hospitals/clinicYes299 (48.1)71 (23.75)228 (76.25)1.09 0.747-1.5770.667--
No323 (51.9)72 (22.29)251 (77.71)1(ref)1(ref)--

History of contact with health care workerYes71 (11.4)18 (25.35)53 (74.65)1.16 0.654-2.0480.616--
No551 (88.6)125 (22.69)426 (77.31)1(ref)1(ref)--

History of antibiotic usage in the past 4 weeksYes93 (15.0)20 (21.51)73 (78.5)0.90 0.53-1.540.712--
No529 (85.0)123 (23.21)406 (76.75)1(ref)1(ref)--

Adherence to antibiotic therapyCompleted73 (11.7)13 (17.81)60 (82.19)1.406 0.75-2.650.291--
Not completed18 (2.9)6 (33.33)12 (66.67)1(ref)1(ref)--

History of respiratory infectionYes91 (14.6)22 (24.18)69 (75.82)1.08 0.64-1.820.771--
No531 (85.4)121 (22.79)410 (77.21)1(ref)1(ref)--

Mothers’ educational statusUnable to read & write271 (43.6)57(21.033)214 (78.97)1.2 1.03-3.850.0391.57 0.723-3.4220.253
Informal education68 (10.9)17 (25)51 (75)1.594 0.713-3.5630.2561.49 0.596-3.7330.371
Primary school153 (24.6)35 (22.88)118 (77.12)1.79 0.890-3.6020.1021.47 0.678-3.1900.299
Secondary school81 (13.0)17 (20.99)64 (79.01)2.0 0.903-4.4290.0871.68 0.714-3.9700.217
Above grade 1249 (7.9)17 (34.69)32 (65.30)1(ref)1(ref)1(ref)1(ref)

Fathers’ educational statusUnable to read & write211 (33.9)41 (19.43)170 (80.57)1.98 1.063-3.6850.0311.98 1.063-3.6850.039
Informal education97 (15.6)28 (28.87)69 (71.13)1.18 0.596-2.3230.6401.18 0.596-2.3230.715
Primary school146 (23.5)31 (21.23)115 (78.77)1.77 0.921-3.4050.0871.77 0.921-3.4050.105
Secondary school103 (16.6)22 (21.36)81 (78.64)1.76 0.871-3.5440.1151.78 0.871-3.5440.132
Above grade 1265 (10.5)21 (32.31)44 (67.69)1(ref)1(ref)1(ref)1(ref)

Note: ref: reference; AOR: adjusted odds ratio; CI: confidence interval; OR: odds ratio.