Table 4 Analyses of agreement between data in the NTSRS and the medical records. No adjustments were made for multiple comparisons
Variable | Totaln | Match n (%) | NTSRS no EMR no n (%) | NTSRS yes EMR yes n (%) | Non- Match n (%) | NTSRS yes EMR no n (%) | NTSRS no EMR yes n (%) | Observed agreement (95% CI) | Positive agreement | Negative agreement | Kappa (95% CI) | AC1 (95% CI) | Systematic differences p-valueb |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Perioperative form | |||||||||||||
Indication (all indications) | 1991 | 1814 (91.1%) | 177 (8.9%) | 0.91 (0.90–0.92) | 0.80 (0.78–0.83) | 0.90 (0.89–0.92) | |||||||
Snoringa | 1991 | 1906 (95.7%) | 514 (25.8%) | 1392 (69.9%) | 85 (4.3%) | 45 (2.3%) | 40 (2.0%) | 0.96 (0.95–0.97) | 0.97 | 0.92 | 0.89 (0.87–0.92) | 0.93 (0.91–0.94) | 0.66 |
Recurrent tonsillitis | 1991 | 1870 (93.9%) | 1658 (83.3%) | 212 (10.6%) | 121 (6.1%) | 60 (3.0%) | 61 (3.1%) | 0.94 (0.93–0.95) | 0.78 | 0.97 | 0.74 (0.70–0.79) | 0.92 (0.91–0.93) | 1.00 |
Chronic tonsillitis | 1991 | 1895 (95.2%) | 1806 (90.7%) | 89 (4.5%) | 96 (4.8%) | 47 (2.4%) | 49 (2.5%) | 0.95 (0.94–0.96) | 0.64 | 0.97 | 0.62 (0.55–0.69) | 0.94 (0.93–0.96) | 0.92 |
Peritonsillitis | 1991 | 1981 (99.5%) | 1888 (94.8%) | 93 (4.7%) | 10 (0.5%) | 6 (0.3%) | 4 (0.2%) | 0.99 (0.99–1.00) | 0.96 | 1.00 | 0.95 (0.91–0.98) | 0.99 (0.99–1.00) | 0.75 |
Systemic complication | 1991 | 1985 (99.7%) | 1983 (99.6%) | 2 (0.1%) | 6 (0.3%) | 1 (0.1%) | 5 (0.3%) | 1.00 (0.99–1.00) | 0.29 | 1.00 | 0.40 (0.01–0.78) | 1.00 (0.99–1.00) | 0.22 |
Other indication | 1991 | 1955 (98.2%) | 1929 (96.9%) | 26 (1.3%) | 36 (1.8%) | 18 (0.9%) | 18 (0.9%) | 0.98 (0.98–0.99) | 0.59 | 0.99 | 0.58 (0.46–0.71) | 0.98 (0.97–0.99) | 1.00 |
Level of care (outpatient) | 1910 | 1865 (97.6%) | 394 (20.6%) | 1471 (77.0%) | 45 (2.4%) | 36 (1.9%) | 9 (0.5%) | 0.98 (0.97–0.98) | 0.99 | 0.92 | 0.93 (0.91–0.95) | 0.96 (0.95–0.97) | <.0001 |
Type of surgery (all types) | 1991 | 1928 (96.8%) | 63 (3.2%) | 0.97 (0.96–0.98) | 0.95 (0.94–0.96) | 0.96 (0.95–0.97) | |||||||
TE | 1991 | 1972 (99.0%) | 1344 (67.5%) | 628 (31.5%) | 19 (1.0%) | 11 (0.6%) | 8 (0.4%) | 0.99 (0.99–0.99) | 0.99 | 0.99 | 0.98 (0.97–0.99) | 0.98 (0.98–0.99) | 0.65 |
TEA | 1991 | 1953 (98.1%) | 1703 (85.5%) | 250 (12.6%) | 38 (1.9%) | 16 (0.8%) | 22 (1.1%) | 0.98 (0.97–0.99) | 0.92 | 0.99 | 0.92 (0.89–0.94) | 0.98 (0.97–0.98) | 0.42 |
TT | 1991 | 1965 (98.7%) | 1868 (93.8%) | 97 (4.9%) | 26 (1.3%) | 23 (1.2%) | 3 (0.2%) | 0.99 (0.98–0.99) | 0.97 | 0.99 | 0.87 (0.83–0.92) | 0.99 (0.98–0.99) | <.0001 |
TTA | 1991 | 1948 (97.8%) | 995 (50.0%) | 953 (47.9%) | 43 (2.2%) | 13 (0.7%) | 30 (1.5%) | 0.98 (0.97–0.98) | 0.97 | 0.99 | 0.96 (0.94–0.97) | 0.96 (0.94–0.97) | 0.014 |
Surgical technique (cold/cold) | 1854 | 1759 (94.9%) | 1484 (80.0%) | 275 (14.8%) | 95 (5.1%) | 73 (3.9%) | 22 (1.2%) | 0.95 (0.94–0.96) | 0.93 | 0.95 | 0.82 (0.79–0.86) | 0.93 (0.91–0.94) | <.0001 |
Tonsillectomy á chaud | 1281 | 1278 (99.8%) | 1244 (97.1%) | 34 (2.7%) | 3 (0.2%) | 2 (0.2%) | 1 (0.1%) | 1.00 (0.99–1.00) | 0.97 | 1.00 | 0.96 (0.91–1.00) | 1.00 (0.99–1.00) | 1.00 |
Postoperative bleeding | 1780 | 1761 (98.9%) | 1752 (98.4%) | 9 (0.5%) | 19 (1.1%) | 12 (0.7%) | 7 (0.4%) | 0.99 (0.98–0.99) | 0.56 | 0.99 | 0.48 (0.28–0.68) | 0.99 (0.98–0.99) | 0.36 |
30-day PROM questionnaire | |||||||||||||
Contact due to bleeding | 1031 | 1008 (97.8%) | 960 (93.1%) | 48 (4.7%) | 23 (2.2%) | 16 (1.6%) | 7 (0.7%) | 0.98 (0.97–0.99) | 0.87 | 0.98 | 0.79 (0.71–0.88) | 0.97 (0.96–0.99) | 0.093 |
Admission due to bleeding | 994 | 984 (99.0%) | 947 (95.3%) | 37 (3.7%) | 10 (1.0%) | 9 (0.9%) | 1 (0.1%) | 0.99 (0.98–1.00) | 0.97 | 0.99 | 0.88 (0.80–0.95) | 0.99 (0.98–1.00) | 0.021 |
Reoperation due to bleeding | 899 | 892 (99.2%) | 883 (98.2%) | 9 (1.0%) | 7 (0.8%) | 7 (0.8%) | 0 (0.0%) | 0.99 (0.98–1.00) | 1.00 | 0.99 | 0.72 (0.52–0.92) | 0.99 (0.99–1.00) | 0.016 |
Contact due to pain | 1018 | 922 (90.6%) | 861 (84.6%) | 61 (6.0%) | 96 (9.4%) | 65 (6.4%) | 31 (3.0%) | 0.91 (0.89–0.92) | 0.66 | 0.93 | 0.51 (0.42–0.59) | 0.88 (0.86–0.91) | 0.0007 |