Table 2 Factors associated with serum retinol changes in Kaya pupils (ANCOVA with repeated measures)
From: The positive impact of red palm oil in school meals on vitamin A status: study in Burkina Faso
Within subject effects | ||||
|---|---|---|---|---|
Source | Sum of squares | df | F | P value |
Time factor | 0.89 | 1 | 6.30 | 0.013 |
Time factor* age | 1.60 | 1 | 11.58 | 0.001 |
Time factor* height-for-age Z-score | 0.88 | 1 | 6.39 | 0.012 |
Time factor* sex | 0.56 | 1 | 4.08 | 0.045 |
Error | 28.74 | 210 | - | - |