Table 4.

Unadjusted parameter estimate (β) with standard errors (SE) of WAZ according to sociodemographic and hygienic characteristics.

Variable	β	SE	p
Male sex	0.09	0.02	<0.0001
Age
13 years	0	0.02	0.7748
14 years	-0.07	0.18	0.7048
15 years	-0.15	0.18	0.4248
16 years	-0.06	0.05	0.2791
17 years	0	0.02	0.9000
Living in the old town district	-0.05	0.02	0.0066
Consumption of raw vegetables	0.02	0.02	0.1518
Consumption of raw meat	0	0.02	0.9486
Consumption of unboiled water	0.03	0.02	0.0787
Using collective catering facilities	-0.06	0.02	0.0003
Washing hands after coming home	0	0.02	0.9453
Washing hands before eating	-0.02	0.02	0.3587
Washing hands after toilet	-0.01	0.02	0.4759
Washing hands after contact with animals	0.02	0.02	0.235
Owing a cat	0.01	0.02	0.6879
Owing a dog	-0.01	0.02	0.4488
Owing cat and dog	0	0.02	0.2791
Helicobacter pylori infection	-0.05	0.02	0.0085