Factors associated with H pylori epidemiology in symptomatic children in Buenos Aires, Argentina

Table 1 Demographical data of the children included in the study

	H pylori (+)	n (%)	H pylori (-)	n (%)	P
n	140		192
Age (yr) (mean ± SD)	9.89 ± 3.16		10.02 ± 2.96		0.708
Gender
Female	77	(54.9)	110	(57.4)
Male	63	(45.1)	82	(42.6)	0.660
Ethnic group
Caucasian	130	(93.1)	170	(88.7)
Asian	0	(0.0)	4	(2.0)
American Indian	10	(6.9)	18	(9.3)	0.156
Educational level
Kindergarten	14	(9.8)	24	(12.4)
BGE1	116	(83.2)	150	(78.4)
Polimodal2	10	(7.0)	18	(9.2)	0.564
Place of residence
BA city3	6	(4.2)	10	(5.2)
Great BA4	9	(6.3)	7	(3.6)
BA province5	125	(89.5)	175	(91.2)	0.491

¹ Basic general education (for children from 6 to 15 years old);

² For children from 15 to 18 years old;

³Buenos Aires city (inner city);

⁴Great Buenos Aires (suburban areas);

⁵Buenos Aires province (inner city).

Table 2 Potential factors associated with H pylori positivity

	H pylori (+)	n (%)	H pylori (-)	n (%)	P
Domestic crowding
Siblings
0	3	(2.1)	10	(5.2)
1	38	(27.1)	68	(35.4)
2	23	(16.4)	58	(30.2)
3	29	(20.7)	18	(9.4)	< 0.001b
4	15	(10.8)	16	(8.3)
5	9	(6.4)	10	(5.2)
> 5	23	(16.5)	12	(6.3)
Rooms in the house
1	10	(7.1)	14	(7.3)
2	61	(43.6)	83	(43.2)
3	44	(31.4)	57	(29.7)	> 0.700
4	12	(8.6)	14	(7.3)
5	13	(9.3)	24	(12.5)
Contact with pets
No	21	(14.7)	32	(16.6)
Yes	119	(85.3)	160	(83.4)	0.407
Dog	101	(91.8)	132	(91.7)	0.577
Cat	46	(41.8)	42	(29.2)	0.025a
Hamster	11	(10.0)	9	(6.3)	0.193
Reptile	6	(5.5)	7	(4.9)	0.518
Bird	20	(18.4)	14	(9.7)	0.036a
History of digestive diseases among family members
No	58	(41.4)	93	(48.5)
Yes	82	(58.6)	99	(51.5)	0.105
GU1 or DU2	24	(16.4)	30	(15.2)	0.429
Gastritis	74	(50.7)	75	(37.9)	0.012a
GC3	16	(11.2)	31	(15.8)	0.145

¹ Gastric Ulcer;

² Duodenal Ulcer;

³ Gastric Cancer;

^aSignificantly different (P < 0.05);

^bSignificantly different (P < 0.001).