TABLE 3

Study Characteristics of Included Prospective Cohort Study

SourceSetting, Place, Country, PeriodStudy PopulationDiagnostic Test Used for Determination of H pylori Infection (Cutoff Point)Patients Lost to Follow-up, %OR (95% CI)Quality Score
Tindberg et al,48 1999Vaccine trial, Southern part of Sweden, Stockholm, 1984–1995305 children, born in 1984, who participated in a pertussis vaccine trial, starting at 6 mo to 11 y; mean age at end of follow-up: 10.9 y (range: 10.5–12.3 y)ELISA (0.360 [A405 nm]), measured at 6 mo, 8 mo, 10 mo, 18 mo, 2 y, 4 y, and 11 yBlood samples from 6 to 18 mo of age and at least 1 additional serum sample drawn at 2, 4, or 11 y of age were available from 294 children; lost to follow-up: 11 (3.6%)RAP (during last 6 mo): 2.0 (0.8–4.6) UAP (during childhood): 1.4 (0.7–2.9) UAP (last 6 mo): 2.2 (1.2–4.7)9
  • ELISA indicates enzyme-linked immunosorbent assay.