Research Article
Clinical and Imaging Characteristics of Smear Negative Pulmonary Tuberculosis Patients: A Comparative Study
Table 2
Univariate analysis of study variables among SNPTB and SPPTB patients, Addis Ababa, Ethiopia, 2021.
| | Study variables | Health centers’ classification | AHRIL’s classification | | SPPTB | SNPTB | | SPPTB | SNPTB | | | Freq (%) | Freq (%) | COR | value | Freq (%) | Freq. (%) | COR | value |
| | Gender | Female | 49 (44.6) | 89 (43.8) | 0.97 | 0.905 | 55 (39.3) | 83 (48) | 1.43 | 0.124 | | Male | 61 (55.5) | 114 (56) | 1 | | 85 (60.7) | 90 (52) | 11 | |
| | Age group | ≥45 | 18 (16.4) | 51 (25.1) | 1.71 | 0.076 | 22 (15.7) | 47 (27.2) | 2 | 0.016 | | <45 | 92 (83.6) | 152 (75) | 1 | | 118 (84.3) | 126 (73) | 11 | |
| | Occupation | DL | 70 (68.6) | 146 (75) | 0.8 | 0.409 | 89 (66.4) | 127 (77) | 0.57 | 0.032 | | Non-DL | 32 (31.4) | 50 (26) | 1 | | 45 (33.6) | 37 (22.6) | 11 | |
| | Cough | No | 0 | 8 (4) | 1 | | 2 (1.5) | 6 (3.5) | 2.47 | 0.273 | | Yes | 106 (96) | 193 (95) | 1 | | 135 (98) | 164 (96) | 11 | |
| | Weight loss | No | 15 (14.6) | 42 (21.1) | 1.57 | 0.171 | 23 (17) | 34 (20.4) | 1.24 | 0.464 | | Yes | 88 (85.4) | 157 (79) | 1 | | 112 (83) | 133 (80) | 1 | |
| | Fever | No | 27 (25.2) | 62 (31.2) | 1.37 | 0.239 | 35 (25.6) | 54 (32) | 1.45 | 0.139 | | Yes | 80 (74.8) | 137 (69) | 1 | | 102 (75) | 115 (68) | 1 | |
| | Night sweeting | No | 23 (21.5) | 41 (20.8) | 1 | | 28 (20.6) | 36 (21.4) | 1 | | | Yes | 84 (78.5) | 156 (79) | 1.04 | 0.889 | 108 (79) | 132 (79) | 0.95 | 0.858 |
| | Chest pain | No | 40 (38.5) | 63 (31.7) | 0.74 | 0.236 | 48 (35.8) | 55 (32.5) | 0.86 | 0.55 | | Yes | 64 (61.5) | 136 (68) | 1 | | 86 (64.2) | 114 (68) | 1 | |
| | Shortness of breath | No | 38 (13) | 59 (20.1) | 0.72 | 0.201 | 47 (36.7) | 50 (30.3) | 0.75 | 0.248 | | Yes | 62 (62) | 134 (69) | 1 | | 81 (63.3) | 115 (70) | 1 | |
| | Hemoptysis | No | 87 (87) | 155 (82) | 1.51 | 0.24 | 103 (80) | 139 (86) | 0.63 | 0.142 | | Yes | 13 (13) | 35 (18.4) | 1 | | 26 (20.2) | 22 (13.7) | 1 | |
| | Previous TB | No | 101 (92) | 171 (84.2) | 1 | | 130 (93) | 142 (82) | 1 | | | Yes | 9 (8.2) | 32 (15.8) | 2.1 | 0.062 | 10 (7.1) | 31 (17.9) | 2.84 | 0.007 |
| | HIV serostatus | Positive | 17 (17.7) | 32 (19.2) | 1.14 | 0.673 | 19 (15.8) | 30 (21) | 1.29 | 0.39 | | Negative | 79 (82.3) | 135 (81) | 1 | | 101 (84) | 113 (79) | 1 | |
| | Underweight BMI | No | 119 (69) | 84 (60) | 1.3 | 0.282 | 67 (60.9) | 136 (67) | 1.47 | 0.106 | | Yes | 54 (31.2) | 56 (40) | 1 | | 43 (39.1) | 67 (33) | 1 | |
| | BCG scar | No | 56 (61.5) | 120 (67) | 1.29 | 0.338 | 78 (66.7) | 98 (64.5) | 0.91 | 0.708 | | Yes | 35 (38.5) | 58 (32.6) | 1 | | 39 (33.3) | 54 (35.5) | 1 | |
| | Alcohol use | No | 25 (26) | 43 (23.9) | 1 | | 36 (29.3) | 32 (20.9) | 1 | | | Yes | 71 (74) | 137 (76) | 0.89 | 0.693 | 87 (70.7) | 121 (79) | 0.64 | 0.111 |
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SNPTB: smear negative pulmonary tuberculosis; SPPTB: smear positive pulmonary tuberculosis; COR: crude odds ratio (univariate analysis); BMI: body mass index; DL: daily labourer.
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