Table 2.
Changes in nutritional knowledge score (points) three months and nine months after education by socioeconomic factors (mean and 95% confidence interval, 95% CI).
| Variables | Baseline | After 3 Months | After 9 Months | Change after 3 Months | p-Value | Change after 9 Months | p-Value |
|---|---|---|---|---|---|---|---|
| Total sample | |||||||
| educated | 6.1 (5.9; 6.4) | 8.5 (8.2; 8.8) | 8.3 (7.9; 8.6) | 2.4 (2.0; 2.7) | <0.001 | 2.1 (1.7; 2.5) | <0.001 |
| control | 5.5 (5.1; 6.0) | 6.2 (5.7; 6.6) | 7.2 (6.8; 7.6) | 0.6 (0.3; 0.9) | <0.001 | 1.7 (1.2; 2.1) | <0.001 |
| Difference | 0.6 | 2.3 | 1.1 | 1.8 | 0.4 | ||
| p-value | <0.05 | <0.001 | <0.001 | <0.001 | <0.05 | ||
| Girls | |||||||
| educated | 6.6 (6.2; 7.0) | 8.9 (8.5; 9.4) | 8.6 (8.2; 9.1) | 2.4 (1.9; 2.8) | <0.001 | 2.0 (1.6; 2.5) | <0.001 |
| control | 5.7 (5.0; 6.4) | 6.3 (5.6; 7.0) | 7.3 (6.7; 8.0) | 0.6 (0.2; 1.0) | <0.01 | 1.7 (1.0; 2.3) | <0.001 |
| Difference | 0.9 | 2.6 | 1.3 | 1.8 | 0.3 | ||
| p-value | <0.05 | <0.001 | <0.01 | <0.001 | 0.15 | ||
| Boys | |||||||
| educated | 5.6 (5.1; 6.0) | 7.9 (7.5; 8.4) | 7.8 (7.3; 8.3) | 2.3 (1.9; 2.8) | <0.001 | 2.2 (1.6; 2.8) | <0.001 |
| control | 5.4 (4.8; 6.0) | 6.1 (5.4; 6.7) | 7.1 (6.5; 7.7) | 0.6 (0.1; 1.1) | <0.05 | 1.6 (1.0; 2.3) | <0.001 |
| Difference | 0.2 | 1.8 | 0.7 | 1.7 | 0.6 | ||
| p-value | 0.61 | <0.001 | <0.05 | <0.001 | 0.10 | ||
| Urban | |||||||
| educated | 6.3 (5.9; 6.6) | 8.2 (7.8; 8.6) | 7.9 (7.4; 8.3) | 2.0 (1.6; 2.3) | <0.001 | 1.6 (1.2; 2.0) | <0.001 |
| control | 4.7 (4.2; 5.2) | 5.3 (4.7; 5.8) | 6.8 (6.3; 7.4) | 0.6 (0.2; 0.9) | <0.01 | 2.1 (1.5; 2.7) | <0.001 |
| Difference | 1.6 | 2.9 | 1.1 | 1.4 | −0.5 | ||
| p-value | <0.001 | <0.001 | <0.01 | <0.001 | 0.27 | ||
| Rural | |||||||
| educated | 5.9 (5.4; 6.4) | 9.1 (8.6; 9.6) | 9.1 (8.5; 9.6) | 3.2 (2.6; 3.7) | <0.001 | 3.2 (2.5; 3.9) | <0.001 |
| control | 6.8 (6.0; 7.5) | 7.4 (6.7; 8.2) | 7.7 (7.0; 8.5) | 0.7 (0.2; 1.3) | <0.05 | 1.0 (0.3; 1.6) | <0.01 |
| Difference | −0.9 | 1.7 | 1.4 | 2.5 | 2.2 | ||
| p-value | 0.06 | <0.001 | <0.01 | <0.001 | <0.001 | ||
| Low FAS | |||||||
| educated | 5.7 (5.1; 6.2) | 8.7 (8.1; 9.3) | 8.4 (7.8; 9.0) | 3.0 (2.4; 3.6) | <0.001 | 2.7 (2.0; 3.5) | <0.001 |
| control | 4.4 (3.6; 5.2) | 4.8 (4.0; 5.5) | 6.4 (5.6; 7.2) | 0.3 (0.0; 0.7) | 0.08 | 2.0 (1.0; 3.0) | <0.001 |
| Difference | 1.3 | 3.9 | 2.0 | 2.7 | 0.7 | ||
| p-value | <0.05 | <0.001 | <0.001 | <0.001 | 0.11 | ||
| Higher FAS | |||||||
| educated | 6.3 (6.0; 6.7) | 8.5 (8.1; 8.8) | 8.2 (7.8; 8.6) | 2.1 (1.8; 2.5) | <0.001 | 1.9 (1.5; 2.3) | <0.001 |
| control | 5.9 (5.4; 6.5) | 6.7 (6.1; 7.2) | 7.5 (7.0; 8.0) | 0.7 (0.3; 1.1) | <0.001 | 1.5 (1.0; 2.0) | <0.001 |
| Difference | 0.4 | 1.8 | 0.7 | 1.4 | 0.4 | ||
| p-value | 0.16 | <0.001 | <0.05 | <0.001 | 0.10 | ||
Nutrition knowledge score (range: 0–18). FAS indicates Family Affluence Scale (low: 0–4 points, higher: 5–7 points). Difference calculated as the absolute difference between the educated vs. control group. Change calculated as the difference between follow-up vs. baseline within one group (educated or control). p-value—significance level for difference (Mann–Whitney test) or change (Wilcoxon test).