Research Article
Association between Chronic Urticaria and Helicobacter pylori Infection among Patients Attending a Tertiary Hospital in Tanzania
Table 1
Baseline characteristics of case and control subjects after matching.
| | Characteristics | Control subjects (n = 55) | Case subjects (n = 55) | value |
| | Median age, years (IQR) | 31 (27–45) | 34 (22–46) | 0.1231 |
| | Age groups (years) | | | | | <20 | 9 (16.4) | 10 (18.2) | 0.3173 | | 20–29 | 19 (34.6) | 18 (32.7) | — | | 30–39 | 12 (21.8) | 12 (21.8) | — | | 40–49 | 8 (14.5) | 8 (14.5) | — | | >50 | 7 (12.7) | 7 (12.7) | — |
| | Sex | — | — | 1.0 | | Male | 16 (29.1) | 16 (29.1) | — | | Female | 39 (70.9) | 39 (70.9) | — |
| | Residence area | — | — | 0.2008 | | Urban | 31 (56.4) | 37 (67.3) | — | | Rural | 24 (43.6) | 18 (32.7) | — |
| | Occupational status | — | — | 0.4652 | | Self-employed | 9 (16.4) | 13 (23.6) | — | | Formal employed | 21 (38.2) | 17 (30.9) | — | | Nonemployed/retired/NA | 25 (45.4) | 25 (45.5) | — |
| | Specific attack time | — | — | — | | Cold/hot temp | — | 1 (1.8) | — | | Not specific | — | 54 (98.2) | — |
| | Associated with angioedema | — | — | — | | Yes | — | 10 (18.2) | — | | No | — | 45 (81.8) | — |
| | Personal or family history of atopy | — | — | 0.8273 | | Yes | 14 (25.5) | 15 (27.3) | — | | No | 41 (74.5) | 40 (72.7) | — |
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Wilcoxon signed-rank test; NA: not applicable (children). |
