Table 1

Epidemiological characteristics of the two study populations

	Ghana	Brazil
Number of children	1877	1209
Person years	1455	1104
Age range at baseline (months)	0–59	6–48
Diarrhoea
Incidence rate/PY	9.0	7.0
Longitudinal prevalence	17%	5%
Mean duration of episodes (days)	6.1	2.7
Mean WAZ by age at measurement
0–12 months	−1.56	−0.51
>12–24 months	−1.86	−0.89
>24–36 months	−1.70	−0.81
>36–48 months	−1.57	−0.84
>48–60 months	−1.63	−0.89
0–60 months	−1.67	−0.83
WAZ <−2	30%	13%
Mean HAZ	−2.39	−1.30
HAZ <−2	62%	25%
Mortality
Deaths (n)	77	4
Mortality rate/1000 PY	52.9	3.6