Table 3.
Percentage of households with bacterial counts exceeding international guidelines
| Bacterial counts cfu/g†‡¶ | Water and complementary food samples∗ | p value | |||||
|---|---|---|---|---|---|---|---|
| Water (n=53) | LB0 (n=53) | LB4 (n=53) | SRP0 (n=53) | SRP4 (n=53) | Traditional foods (n=120) | ||
| Aerobic bacteria ≥104 cfu/g | 50.9 (27)a | 7.5 (4)b | 49.1 (26)d | 77.4 (41)c | 92.5 (49)e | 71.7 (86)f | <0.001 |
| Coliform ≥100 cfu/g | 35.8 (19)a | 1.9 (1)b | 52.8 (28)d | 75.5 (40)c | 92.5 (49)e | 45.8 (55)d | <0.001 |
| Enterobacteriaceae ≥100 cfu/g | 50.9 (27)a | 3.8 (2)b | 58.5 (31)d | 86.8 (46)c | 98.1 (52)e | 50.0 (60)d | <0.001 |
Figures in parentheses indicate numbers
∗LB0 is Lishe bora immediately after preparation; LB4 is Lishe bora 4 hours after preparation; SRP0 is soy-rice porridge immediately after preparation; and SRP4 is soy-rice porridge 4 hours after preparation
†Bacterial counts in mean Log10 cfu/g; the assay cannot detect values <50 cfu/g
‡% (n) with χ2-test p value comparing water, LB0, and SRP0; LB0 and LB4; SRP0 and SRP4; LB4, SRP4, and traditional foods
¶Comparisons with unlike superscripts (a, b, c, d, e, and f) indicate significant differences (p<0.05) between subgroups; cfu=Colony-forming unit; LB=Lishe bora; SRP=Soy-rice porridge