Table 5

Comparison of dietary diversity score with frequent, moderate and infrequent consumption of street food and fast food

Mean DDS

95% CI

Kruskal-Wallis

p-value

Street foods

Never or

Hardly ever (n = 2171)

4.13[A]

4.07 - 4.20

p < 0.0001**

Moderate+ (n = 730)

3.77[B]

3.66 - 3.89

Frequent++ (n = 373)

3.81[B]

3.66 - 3.96

Fast foods

Never or

Hardly ever (n = 1999)

3.73[C]

3.66 - 3.80

< 0.0001**

Moderate+ (n = 1052)

4.41[B]

4.32 - 4.50

Frequent++ (n = 224)

4.69[A]

4.51 - 4.87

All (n = 3287)

4.02

3.96 - 4.07

+Moderate use = 2-3 times a month or about once a week; ++Frequent use = 2 or more times a week

**p < 0.0001 = significant difference in DDS between frequent and seldom consumers

[A], [B], [C] Different symbols indicate significant differences amongst groups, Bonferroni multiple comparison test, significant for p < 0.05.

Steyn et al. Nutrition Journal 2011 10:104   doi:10.1186/1475-2891-10-104