Table 6.
Significance test summary
| Study | Significance test | Significance level | p-value | Author's conclusions |
|---|---|---|---|---|
| McNulty et al9 | DBM MRMC difference in mean AUC | 5% |
p(random readers and case) = 0.6696; p(fixed readers random case) = 0.5961; p(random readers fixed cases) = 0.6696 |
NSD diagnostic accuracy between tablet and secondary display |
| Tewes et al15 | Wilcoxon (U) rank-sum test for Likert scale evaluations; t-test (t1) for difference in mean correlation coefficient and t-test (t2) for difference in mean kappa score | 5% |
p(U) > 0.05; p(t1) > 0.05; p(t2) > 0.05 |
NSD between the tablet and primary display for both CT head and CTPA |
| Panughpath et al10 | Fisher's exact test | NR | p(F) < 1.00 | NSD between the table and secondary display for the detection of intracranial haemorrhage |
| Johnson et al18 | Difference in se, sp and ac | NR |
p(se) = 1.0; p(sp) = 1.0; p(ac) = 1.0 |
NSD in sensitivity, specificity and accuracy between a tablet and primary display |
| Yoshimura et al19 | DBM MRMC difference in mean AUC (tablet vs GSDF-calibrated primary display); DBM MRMC difference in mean AUC (tablet vs gamma-calibrated primary display; ANOVA |
5% |
p(tablet vs GSDF-calibrated primary display) > 0.05; p(tablet vs gamma-calibrated primary display) < 0.05; p(ANOVA) = 0.06 |
NSD between tablet and GSDF primary display; AUC was statistically smaller for the tablet when compared with gamma-calibrated primary display; ANOVA showed NSD between all three displays |
| Park et al8 | McNemar's test for difference in se and sp DBM MRMC difference mean AUC |
NR |
p(se) = 1.00; p(sp) = 0.885; p(AUC) = 0.183 |
NSD between iPad® and calibrated secondary liquid crystal display |
| Lee et al16 | Difference in AUC | 5% | NR | NSD between tablet and primary CRT for the detection of urolithiasis |
ac, accuracy; ANOVA, analysis of variance; AUC, area under receiver operating characteristic curve; CRT, cathode ray tube; CTPA, CT pulmonary angiogram; DBM, Dorfman-Berbaum-Metz; GSDF, greyscale display function; MRMC, multireader multicase; NR, not reported; NSD, no significant difference; se, sensitivity; sp, specificity.
iPad in the table refers to the Apple iPad (Apple, Cupertino, CA).