| 24hrU | 24hrFR | Difference | |||
---|---|---|---|---|---|---|
Mean | 95% CI | Mean | 95% CI | Mean | 95% CI | |
Overall (n = 588) | 6.4 | 6.2 to 6.6 | 6.2 | 6.0 to 6.4 | − 0.2 | 0.5 to 0.1 |
By type of day (school or non-school day) | ||||||
 Collected on the same type of day (n = 279) | 6.2 | 5.9 to 6.5 | 6.2 | 5.9 to 6.6 | 0.0 | −0.4 to 0.4 |
 Not collected on the same type of day (n = 309) | 6.6 | 6.3 to 6.9 | 6.1 | 5.8 to 6.4 | −0.4 | −0.8 to − 0.0 |
By number of days between collection | ||||||
 Same day (n = 31) | 7.3 | 6.5 to 8.2 | 6.7 | 5.4 to 8.1 | −0.6 | −2.1 to 1.0 |
 Within 1–3 days (n = 306) | 5.8 | 5.5 to 6.1 | 6.2 | 5.9 to 6.5 | 0.4 | 0.1 to 0.8 |
 Within 4–7 days (n = 201) | 7.1 | 6.7 to 7.5 | 6.1 | 5.7 to 6.5 | −1.0 | −1.5 to −0.5 |
 >7 days (n = 51) | 6.9 | 6.0 to 7.8 | 5.9 | 5.3 to 6.6 | −1.0 | −2.1 to 0.1 |