Table 5

Socioeconomic class (based on the ABEP scale), stratified by study phase (N=80)
Socioeconomic class Phase I (n=40) Phase III (n=40)
n (%) n (%) p-value1
A 0 (0) 0 (0) < 0.0005
B 11 [25] 4 [10]
C 28 (70) 24 (60)
D 1 (2.5) 9 (22.5)
E 0 (0) 3 (7.5)

1 Fisher’s exact test.

Nappo et al.

Nappo et al. BMC Public Health 2013 13:19   doi:10.1186/1471-2458-13-19

Open Data