One year and life-time prevalence of abdominal pain, abdominal pain characteristics and the seroprevalence of IgG antibodies to H pylori in 1982: crude and multivariate adjusted odds ratios (OR)3-152
| Symptoms and IgG antibody status | n (%) | Unadjusted OR | Sex and age adjusted OR | Multivariate adjusted OR | 95% CI3-153 |
| History of abdominal pain (life-time prevalence)3-154 | |||||
| IgG seronegative | 248 (12.5) | 1.0 | 1.0 | 1.0 | – |
| IgG borderline | 84 (12.4) | 0.99 | 0.99 | 0.92 | (0.68–1.25) |
| IgG seropositive | 165 (17.8) | 1.51 | 1.47 | 1.18 | (0.91–1.54) |
| Abdominal pain within the preceding year (one-year period prevalence)3-150 | |||||
| IgG seronegative | 229 (11.5) | 1.0 | 1.0 | 1.0 | – |
| IgG borderline | 74 (10.9) | 0.94 | 0.96 | 0.89 | (0.63–1.24) |
| IgG seropositive | 128 (13.8) | 1.23 | 1.27 | 1.23 | (0.91–1.65) |
| Epigastric pain | |||||
| IgG seronegative | 356 (42.1) | 1.0 | 1.0 | 1.0 | – |
| IgG borderline | 123 (40.9) | 0.95 | 0.89 | 0.89 | (0.67–1.18) |
| IgG seropositive | 188 (45.2) | 1.13 | 0.99 | 0.92 | (0.70–1.19) |
| Nocturnal pain | |||||
| IgG seronegative | 237 (28.1) | 1.0 | 1.0 | 1.0 | – |
| IgG borderline | 118 (39.3) | 1.66 | 1.58 | 1.62 | (1.19–2.19) |
| IgG seropositive | 155 (37.3) | 1.52 | 1.36 | 1.13 | (0.85–1.51) |
| Pain duration3-151 | |||||
| Minutes | 153 (32.0) | 1.0 | 1.0 | 1.0 | – |
| Days | 101 (43.7) | 1.65 | 1.53 | 1.33 | (0.92–1.91) |
| Factors aggravating pain | |||||
| Spring3-150 | |||||
| IgG seronegative | 45 (51.7) | 1.0 | 1.0 | 1.0 | – |
| IgG borderline | 19 (51.4) | 0.99 | 1.05 | 1.20 | (0.44–3.26) |
| IgG seropositive | 44 (67.7) | 1.96 | 2.14 | 1.68 | (0.70–4.05) |
| Autumn | |||||
| IgG seronegative | 55 (63.2) | 1.0 | 1.0 | 1.0 | – |
| IgG borderline | 29 (78.4) | 2.11 | 2.01 | 3.29 | (0.99–11.0) |
| IgG seropositive | 42 (64.6) | 1.06 | 0.97 | 0.68 | (0.27–1.69) |
| Drinking | |||||
| IgG seronegative | 201 (34.9) | 1.0 | 1.0 | 1.0 | – |
| IgG borderline | 54 (28.0) | 0.72 | 0.71 | 0.81 | (0.55–1.20) |
| IgG seropositive | 78 (27.8) | 0.72 | 0.74 | 0.71 | (0.50–1.01) |
| Eating | |||||
| IgG seronegative | 231 (40.1) | 1.0 | 1.0 | 1.0 | – |
| IgG borderline | 63 (32.6) | 0.72 | 0.67 | 0.62 | (0.43–0.91) |
| IgG seropositive | 134 (47.7) | 1.36 | 1.08 | 1.06 | (0.76–1.47) |
| Mental stress | |||||
| IgG seronegative | 350 (60.8) | 1.0 | 1.0 | 1.0 | – |
| IgG borderline | 108 (56.0) | 0.82 | 0.81 | 0.84 | (0.59–1.20) |
| IgG seropositive | 145 (51.6) | 0.69 | 0.72 | 0.69 | (0.50–0.95) |
↵3-150 Significant in women in multivariate analyses.
↵3-151 IgG antibody status was used as the dependent variable. Other pain episodes were not associated with H pylori infection.
↵3-152 The upper odds ratio represents the risk of having the symptom in IgG borderline cases compared with IgG seronegative people. The lower odds ratio is the corresponding risk in IgG seropositive people compared with IgG seronegative people.
↵3-153 Confidence intervals for multivariate adjusted odds ratios.
↵3-154 Significant in men in multivariate analyses.