All (n = 304) | Boys (n = 141) | Girls (n = 163) | |
---|---|---|---|
Accelerometer | |||
MVPA, min/d (SD) | 95.2 (33.2) | 97.2 (33.8) | 93.4 (32.7) |
PAU-7S, noncalibrated | |||
MVPA, min/d (SD) | 106.5 (77.0) | 111.0 (77.2) | 102.7 (76.9) |
Between-method difference, min/d (95% CI)a | 11.4 (2.9;19.8) | 13.8 (1.5;26.0) | 9.3 (−2.5;21.1) |
Proportional agreement, %; (95% CI)b | 118 (107;128) | 120 (106;134) | 116 (101;131) |
Cronbach alpha | 0.76 | 0.73 | 0.78 |
Regression coefficientc | 0.428 (0.379;0.478) | 0.444 (0.367;0.520) | 0.414 (0.349;0.479) |
Spearman correlation coefficient | 0.31 | 0.33 | 0.29 |
Intra-class correlation coefficient | 0.20 | 0.24 | 0.16 |
Absolute agreement, %d | 46.7 | 48.2 | 45.4 |
Gross misclassification, %e | 14.1 | 14.9 | 13.5 |
Kappaf | 0.24 | 0.24 | 0.24 |
PAU-7S, calibrated | 95.2 (33.2) | 97.2 (33.8) | 93.4 (32.7) |
Between-method difference, min/d (95% CI)a | 0 (−3.3;3.3) | 1.3 (−3.4;5.6) | −1.09 (−5.6;3.5) |
Proportional agreement, %; (95% CI)b | 105 (101;109) | 106 (100;112) | 104 (99;110) |
Regression coefficientc | 1.9*10−6 (−0.116;0.116) | 0.007 (−0.177;0.192) | −0.012 (−0.160;0.137) |
Spearman correlation coefficient | 0.62 | 0.66 | 0.57 |
Intra-class correlation coefficient | 0.62 | 0.66 | 0.57 |
Absolute agreement, %d | 59.2 | 65.2 | 54.0 |
Gross misclassification, %e | 3.2 | 1.8 | 3.7 |
Kappaf | 0.50 | 0.57 | 0.44 |