Table 1.
Demographic and socio-economic characteristics of non-complier and complier subjects, and prevalence of H. pylori infection
| Characteristics | Test non-compliers (n = 200) n (%) | Test compliers (n = 363) n (%) | p1 | Prevalence2 n (%) | p3 |
| Age (years) | 0.6 | 0.024 | |||
| 20–29 | 53 (26.5) | 84 (23.4) | 40 (47.6) | ||
| 30–39 | 35 (17.5) | 78 (21.7) | 56 (71.8) | ||
| 40–49 | 42 (21.0) | 80 (22.3) | 57 (71.3) | ||
| ≥ 50 | 70 (35.0) | 117 (32.6) | 78 (66.7) | ||
| Sex | 0.009 | 0.1 | |||
| Male | 95 (47.5) | 129 (35.9) | 76 (58.9) | ||
| Female | 105 (52.5) | 230 (64.1) | 155 (67.4) | ||
| Ethnicity | 0.6 | <0.001 | |||
| White | 151 (75.5) | 279 (77.7) | 165 (59.1) | ||
| Non white | 49 (24.5) | 80 (22.3) | 66 (82.5) | ||
| Family income (MW) | 0.09 | <0.0014 | |||
| ≤ 1.00 | 27 (14.1) | 37 (10,5) | 31 (83.8) | ||
| 1.01–3.00 | 66 (34.4) | 138 (39.0) | 92 (66.7) | ||
| 3.01–5.00 | 42 (21.9) | 99 (28.0) | 71 (71.7) | ||
| ≥ 5.01 | 57 (29.7) | 80 (22.6) | 35 (43.8) | ||
| Education | 0.5 | 0.0014 | |||
| ≤ 4 | 39 (21.5) | 69 (19,2) | 49 (71.0) | ||
| 5–7 | 41 (22.7) | 84 (23.4) | 60 (71.4) | ||
| 8–10 | 32 (17.7) | 72 (20.1) | 48 (66.7) | ||
| ≥ 11 | 69 (38.1) | 109 (30.4) | 53 (48.6) | ||
| Marital status | 0.4 | 0.8 | |||
| With partner | 127 (63.5) | 241 (67.1) | 156 (64.7) | ||
| Without partner | 73 (36.5) | 118 (32.9) | 75 (63.6) | ||
| Size of present family | 0.7 | 0.03 | |||
| 1–3 | 92 (46.0) | 171 (47.6) | 100 (58.5) | ||
| ≥ 4 | 108 (54.0) | 188 (52.4) | 131 (69.7) |
1p of difference between test-compliers and test non-compliers according to the independent variables
2 prevalence among test-compliers
3p of the association between the independent variable and the prevalence of H. pylori infection
4test for linear trend