Table 3

 Childhood socioeconomic features of the study population by seropositivity for H pylori and hepatitis A virus

H pyloriHepatitis A virus
Seropositive (n=446)Seronegative (n=259)Seropositive (n=407)Seronegative (n=59)
Father’s occupation
 Manual388 (87)192 (74)344 (84)36 (61)
 Non-manual58 (13)67 (26)63 (16)23 (39)
Mean (SD) no. of siblings4.6 (2)3.7 (2)4.6 (2)2.3 (1)
Mean (SD) crowding (people per room)3.2 (2.4)2.1 (1.9)3.2 (2.4)2.3 (1)
Own bed230 (52)177 (68)212 (52)53 (90)
Own bedroom240 (54)190 (73)224 (55)53 (90)
Bathroom381 (85)237 (92)358 (88)55 (93)
Refrigerator190 (43)160 (62)187 (46)49 (83)
Hot water supply118 (26)125 (48)113 (28)44 (75)
Household pets152 (34)89 (34)126 (31)25 (42)
Social class grouping
 Low242 (54)84 (32)212 (52)7 (12)
 Middle204 (46)175 (68)195 (48)52 (88)
Seropositive for:
H pylori 446 (100)0275 (67)16 (27)
 Hepatitis A virus275 (94) 132 (75)†† 407 (100)0
  • In subsets of 291 and ††175 subjects.

  • Values are numbers (%) or mean (SD) as indicated.