Agreement between methods in measurement of stature
| Number | Mean difference, cm | 95% CI | ||
|---|---|---|---|---|
| Lower | Upper | |||
| Difference Harpenden – Harpenden | 10 | –0.29 | –0.60 | –0.02 |
| Difference Harpenden – bench rule | 87 | –0.59 | –0.70 | –0.49 |
| Difference Harpenden – ultrasound | 86 | –0.70 | –1.06 | –0.35 |
| Difference Harpenden – ultrasound ceiling | 85 | 1.36 | 0.87 | 1.84 |
| Difference Harpenden – armspan | 87 | 0.45 | –0.48 | 1.38 |
| Difference Harpenden – questionnaire | 68 | –0.98 | –1.48 | –0.49 |
| Difference Harpenden – interview | 86 | –1.12 | –1.58 | –0.67 |
Mean difference is an estimate of “trueness” and the 95% Confidence Interval for the difference between individual measurements is an estimate of “precision”.