Table 1 Data quality, internal completeness, Legionnaire’s disease cases notified in MSIS, 2008 to 2017, Norway
From: Evaluation of the national surveillance of Legionnaires' disease in Norway, 2008-2017
Variable | Variable not empty and not ‘unknown’ | Variable not empty | ||||
|---|---|---|---|---|---|---|
Complete observations (n) | % | 95% CI | Complete observations (n) | % | 95% CI | |
Place and source of infection | ||||||
Domestic or travel-associated | 420 | 95.9 | 93.6;97.5 | 438 | 100 | |
Place where the patient was infected (country, city, other) | 420 | 95.9 | 93.6;97.5 | 425 | 97.0 | 95.0;98.4 |
Which country (Norway or other) | 400 of 420 | 95.2 | 92.7;97.1 | 400 of 420 | 95.2 | 92.7;97.1 |
Which county (if in Norway) | 147 of 155 | 94.8 | 90.1;97.7 | 147 of 155 | 94.8 | 90.1;97.7 |
Reason for/purpose of travel abroad (if travel-associated) | 251 of 265 | 94.7 | 91.3;97.1 | 254 of 265 | 95.8 | 92.7;97.9 |
Mode of transmission | 365 | 83.3 | 79.5;86.7 | 386 | 88.1 | 84.7;91.0 |
Occupational infection | 324 | 74.0 | 69.6;78.0 | 340 | 77.6 | 73.4;81.4 |
The clinic and test | ||||||
Test carried out (e.g. urine antigen test, PCR, serology) | 437 | 99.8 | 98.7;100 | 438 | 100 | |
Sampled specimen (e.g. urine, sputum, BAL) | 436 | 99.5 | 98.3;99.9 | 436 | 99.5 | 98.4;100 |
Hospitalised | 433 | 98.9 | 97.4;99.6 | 433 | 98.9 | 97.3;99.6 |
Name of hospital if hospitalised | 424 of 430 | 98.6 | 97.0;99.5 | 424 of 430 | 98.6 | 97.0;99.5 |
Why sampled (clinical illness, screening) | 428 | 97.7 | 95.8;98.9 | 428 | 97.7 | 95.8;98.9 |
Clinical diagnosis/ indication (e.g. pneumonia, sepsis) | 427 | 97.5 | 95.6;98.7 | 427 | 97.5 | 95.6;98.7 |
Outcome of disease (e.g. recovered, still ill, mortis) | 360 | 82.2 | 78.3;85.7 | 388 | 88.6 | 85.2;91.4 |
Analysed by reference laboratory | 20 | 4.6 | 2.8;6.9 | 21 | 4.8 | 3.0;7.2 |
The notification | ||||||
Notified by (laboratory, physician, or both) | 437 | 99.8 | 98.7;100 | 437 | 99.8 | 98.7;100 |
Reporting hospital (name) | 395 | 90.2 | 87.0;92.8 | 395 | 90.2 | 87.0;92.8 |
Name of reporting person or hospital clinic | 354 | 80.8 | 76.8;88.4 | 354 | 80.8 | 76.8;88.4 |
Reporting type of clinic (e.g. medical, lung, infection) | 134 | 30.6 | 26.3;35.1 | 134 | 30.6 | 26.3;35.1 |
Reporting institution (name of hospital, clinic, town) | 81 | 18.5 | 15.0;22.5 | 81 | 18.5 | 15.0;22.5 |