Research Article

High Prevalence of Rifampicin Resistance Associated with Rural Residence and Very Low Bacillary Load among TB/HIV-Coinfected Patients at the National Tuberculosis Treatment Center in Uganda

Table 1

Characteristics of TB/HIV-coinfected patients.

CharacteristicRifampicin resistance (RR) not detected
() (%)
RR detected
() (%)
Total
() (%)
valueɣ

Sex
 Male40 (53.3)16 (44.4)56 (50.5)0.381
 Female35 (46.7)20 (55.6)55 (49.5)
Age (median (IQR))33 (27-39)34.5 (27-40)31 (25–39)0.420
Residence
 Urban57 (76.0)17 (47.2)74 (66.7)0.003
 Rural18 (24.0)19 (52.8)37 (33.3)
Antiretroviral therapy (ART)
 No current ART use45 (60.0)15 (41.7)60 (54.1)0.070
 Current ART use30 (40.0)21 (58.3)51 (45.9)
Current cotrimoxazole (CTX) use
 Yes47 (62.7)29 (80.6)76 (68.5)0.058
 No28 (37.3)7 (19.4)35 (31.5)
CTX and ART use combined
 Yes24 (32.0)19 (52.8)43 (38.7)0.035
 No51 (68.0)17 (47.2)68 (61.3)
History of TB treatment
 Yes12 (16.0)6 (16.7)18 (16.2)1.000
 No63 (84.0)30 (83.3)93 (83.8)
Cough
 Yes75 (100.0)31 (86.1)106 (95.5)0.003
 No0 (0.0)5 (13.9)5 (4.5)
Night sweats
 Yes55 (73.3)22 (61.1)77 (69.4)0.191
 No20 (26.7)14 (38.9)34 (30.6)
Weight loss
 Yes60 (80.0)20 (55.6)80 (72.1)0.007
 No15 (20.0)16 (44.4)31 (27.9)
TB symptom burden
 ≥4 symptoms43 (57.3)15 (41.7)58 (52.2)0.122
 <4 symptoms32 (42.7)21 (58.3)53 (47.8)
Bacillary load
 Very low8 (11.0)16 (48.5)24 (22.6)<0.001
 Low/medium/high65 (89.0)17 (51.5)82 (77.4)
Temperature
 Hypothermia21 (28.4)14 (38.9)35 (31.8)0.038
 Normal38 (51.4)21 (58.3)59 (53.6)
 Hyperthermia15 (20.2)1 (2.8)16 (14.6)
CD4 (median (IQR))182 (68-325)280 (119.5-523.5)433 (220-718)0.138
CD8 (median (IQR))466 (254-751)542.5 (333-911.5)414 (253-629)0.420
CD4/CD8 ratio
  <0.5258 (77.3)22 (61.1)80 (72.1)0.075
 0.52-4.117 (22.7)14 (38.9)31 (27.9)
WBC countß (median (IQR))5.89 (4.03-8.61)4.89 (4.08-6.61)6.73 (4.80-9.35)0.115
Hemoglobin§ (median (IQR))10.7 (9.1-12.5)11.5 (9.1-13.5)12.2 (10.2-13.9)0.195
MCV (median (IQR))78.4 (71.2-87.6)88.0 (77.1-96.9)78.7 (71.5-87.9)0.133

ɣ value is derived from Pearson’s chi-square test; value from nonparametric median test. TB: tuberculosis; WBC: white blood cell count; MCV: mean corpuscular volume; CD: cluster of differentiation; IQR: interquartile range. Cutoff ranges are according to Ugandan population estimate [21]; ß×103 cells per microliter; §grams per deciliter; femtoliters.