|
Frequency and risk of H. pylori seropositivity among persons residing in rural Tanzania (May to June, 1985) |
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| Characteristic |
No. H. pylori positive/Total No. (%) |
OR |
95% CI |
P value |
|
|
||||
| Sex * |
0.87 |
|||
| Female |
402/436 (92%) |
Ref. |
||
| Male |
322/351 (92%) |
1.04 |
0.67–1.62 |
|
| Age group, years* |
<0.001 |
|||
| 0–4 |
138/181 (76%) |
Ref. |
||
| 5–9 |
168/180 (93%) |
4.4 |
2.42–7.81 |
|
| 10–17 |
148/152 (97%) |
11.5 |
4.22–31.4 |
|
| ≥18 |
264/268 (99%) |
20.6 |
7.57–56.2 |
|
| Birth order† |
<0.001 |
|||
| 1 |
79/105 (75%) |
Ref. |
||
| 2 |
82/101 (91%) |
3.3 |
1.7–6.8 |
|
| ≥3 |
136/139 (97%) |
11.1 |
3.7–34 |
|
| Next-older sibling ± |
0.08 |
|||
| Seronegative |
23/29 (79%) |
Ref. |
||
| Seropositive |
189/208 (91) |
2.70 |
0.90–8.34 |
|
| Location of village |
0.25 |
|||
| Hill |
272/290 (94%) |
Ref. |
||
| Valley |
453/498 (91%) |
0.66 |
0.33–1.33 |
|
|
Abbreviations: OR odds ratio; CI Confidence Interval * Sex is missing for one person and age is missing for 7 persons † Only children with information on birth-order included in this analysis ± "Next-older sibling" refers to the next-older sibling of the case child | ||||
Mbulaiteye et al. Infectious Agents and Cancer 2006 1:3 doi:10.1186/1750-9378-1-3 |
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