Mean difference (95% CI) in quality rating scores between the tablet and the smartphone compared with the computer using linear regression models for clustered data for all images aggregated and by image type
| Image category | Computer | Tablet Mean difference (95% CI) | Smartphone Mean difference (95% CI) |
|---|---|---|---|
| All images (n=1458) | 0 (ref) | 0.38 (0.20 to 0.55) | 0.49 (0.29 to 0.70) |
| Burns (n=486) | 0 (ref) | 0.08 (−0.15 to 0.31) | 0.54 (0.30 to 0.77) |
| Dermatology (n=324) | 0 (ref) | 0.77 (0.38 to 1.16) | 0.65 (0.28 to 1.01) |
| Other clinical images (n=324) | 0 (ref) | 0.39 (0.14 to 0.63) | 0.31 (−0.03 to 0.66) |
| Non-clinical images (n=324) | 0 (ref) | 0.42 (0.16 to 0.67) | 0.45 (0.20 to 0.71) |