Table 3. Correlations between measures of colonoscopy quality, NHCR 2009 – 2014.
| ADR | ADR-plus | SADR | SADR-plus | PDR | ||
| ADR | p | 1.00 | 0.65 | 0.98 | 0.58 | 0.82 |
| P value | – | < .0001 | < .0001 | < .0001 | < .0001 | |
| ADR-plus | p | 0.65 | 1.00 | 0.66 | 0.93 | 0.49 |
| P value | < .0001 | – | < .0001 | < .0001 | < .0001 | |
| SADR | p | 0.98 | 0.66 | 1.00 | 0.57 | 0.82 |
| P value | < .0001 | < .0001 | – | < .0001 | < .0001 | |
| SADR-plus | p | 0.58 | 0.93 | 0.57 | 1.00 | 0.44 |
| P value | < .0001 | < .0001 | < .0001 | – | < .0001 | |
| PDR | p | 0.82 | 0.49 | 0.82 | 0.44 | 1.00 |
| P value | < .0001 | < .0001 | < .0001 | < .0001 | – |
NHCR, New Hampshire Colonoscopy Registry; ADR, adenoma detection rate; ADR-plus, adenoma detection rate-plus; SADR, serrated and adenoma polyp detection rate; SADR-plus, serrated and adenoma polyp detection rate-plus; PDR, polyp detection rate.
ρ = Spearman Rank correlation coefficient