Time intervals | Mean difference ± SE | P value | 95% confidence interval | |||
---|---|---|---|---|---|---|
Lower bound | Upper bound | |||||
Oral hygiene knowledge | Baseline | 3 months | − 3.00 ± 0.20 | < 0.001 | − 3.41 | − 2.58 |
6 months | − 4.23 ± 0.19 | < 0.001 | − 4.61 | − 3.84 | ||
3 months | 6 months | − 1.23 ± 0.17 | < 0.001 | − 1.58 | − 0.88 | |
Oral hygiene practice | Baseline | 3 months | − 0.91 ± 0.14 | < 0.001 | − 1.19 | − 0.64 |
6 months | − 1.08 ± 0.15 | < 0.001 | − 1.37 | − 0.78 | ||
3 months | 6 months | − 0.16 ± 0.14 | 0.27 | − 0.45 | 0.12 | |
Oral hygiene attitude | Baseline | 3 months | − 0.33 ± 0.09 | 0.001 | − 0.52 | − 0.14 |
6 months | − 0.92 ± 0.10 | < 0.001 | − 1.13 | − 0.72 | ||
3 months | 6 months | − 0.59 ± 0.09 | < 0.001 | − 0.77 | − 0.41 | |
Overall KAP | Baseline | 3 months | − 4.26 ± 0.26 | < 0.001 | − 4.78 | − 3.74 |
6 months | − 6.24 ± 0.27 | < 0.001 | − 6.78 | − 5.69 | ||
3 months | 6 months | − 1.98 ± 0.26 | < 0.001 | − 2.49 | − 1.46 |