Background
Methods
Study population
PAH definition
Category
|
ICD-10 codes (Principal diagnosis only)
|
---|---|
Bacterial pneumonia | J13, J14, J15, J16.0, J16.8, J18 |
Congestive heart failure | I50 |
Asthma | J45 |
Cellulitis | J34.0, K12.2, L02, L03 |
Complications of peptic ulcer disease | K25.0, K25.1, K25.2, K25.4, K25.5, K25.6, K26.0, K26.1, K26.2, K26.4, K26.5, K26.6, K27.0, K27.1, K27.2, K27.4, K27.5, K27.6, K28.0, K28.1, K28.2, K28.4, K28.5, K28.6 |
Pyelonephritis | N10, N11, N12, N13.6, N15.8, N15.9, N17.2 |
Type 2 diabetes mellitus with hyperosmolarity or coma | E10.0, E10.1, E11.0, E11.1, E13.0, E13.1, E14.0, E14.1 |
Ruptured appendix | K35.2, K35.3 |
Hypertension | I10, I11.0, I11.9, I12.0, I12.9, I13.0, I13.1, I13.2, I13.9, I15.0, I15.1, I15.2, I15.8, I15.9, I67.4 |
Hypokalaemia | E87.6 |
Immunizable conditions | A35, A36, A37, A80, B05, B26 |
Gangrene | I73.0, L88, I70.2 |
Category
|
ICD-10 codes
|
Notes
|
---|---|---|
Influenza and pneumonia | J10, J11, J13, J14, J15.3, J15.4, J15.7, J15.9, J16.8, J18.1, J18.8 | In any diagnosis field, exclude cases with secondary diagnosis of D57, and people under 2 months |
Other vaccine preventable | A35, A36, A37, A80, B05, B06, B16.1, B16.9, B18.0, B18.1, B26, G00.0, M01.4 | In any diagnosis field |
Asthma | J45, J46 | Principal diagnosis only |
Congestive heart failure | I50, I11.0, J81 | Principal diagnosis only, exclude cases with procedure codes |
Diabetes complications | E10.1, E10.2, E10.3, E10.4, E10.5, E10.6, E10.7, E10.8, E11.0, E11.1, E11.2, E11.3, E11.4, E11.5, E11.6, E11.7, E11.8, E13.0, E13.1, E13.2, E13.3, E13.4, E13.5, E13.6, E13.7, E13.8, E14.0, E14.1, E14.2, E14.3, E14.4, E14.5, E14.6, E14.7, E14.8 | In any diagnosis field |
Chronic obstructive pulmonary disease | J20, J41, J42, J43, J44, J47 | Principal diagnosis only, J20 only with diag2 of J41 J42 J43 J47 J44 |
Angina | I20, I24.0, I24.8, I24.9 | Principal diagnosis only, exclude cases with procedure codes |
Iron deficiency anaemia | D50.1, D50.8, D50.9 | Principal diagnosis only |
Hypertension | I10, I11.9 | Principal diagnosis only, exclude cases with procedure codes |
Nutritional deficiencies | E40, E41, E42, E43, E55.0, E64.3 | Principal diagnosis only |
Dehydration and gastroenteritis | E86, K52.2, K52.8, K52.9 | Principal diagnosis only |
Pyelonephritis | N39.0, N10, N12, N11, N13.6 | Principal diagnosis only |
Perforated/ bleeding ulcer | K25.0, K25.1, K25.2, K25.4, K25.5, K25.6, K26.0, K26.1, K26.2, K26.4, K26.5, K26.6, K27.0, K27.1, K27.2, K27.4, K27.5, K27.6, K28.0, K28.1, K28.2, K28.4, K28.5, K28.6 | Principal diagnosis only |
Cellulitis | L03, L04, L08, L98.0, L88, L98.3 | Principal diagnosis only, exclude cases with procedure codes |
Pelvic inflammatory disease | N70, N73, N74 | Principal diagnosis only |
Ear, nose and throat infections | H66, H67, J02, J03, J06, J31.2 | Principal diagnosis only |
Dental conditions | K02, K03, K04, K05, K06, K08, K09.8, K09.9, K12, K13 | Principal diagnosis only |
Convulsions and epilepsy | O15, G40, G41, R56 | Principal diagnosis only |
Gangrene | R02 | Principal diagnosis only |
Statistical analysis
Results
PAH standardised rates in 2012
Ansari approach
|
Weissman approach
|
p
| ||
---|---|---|---|---|
N (%)
|
N (%)
| |||
Diagnosis | 1 (nervous system) | 6,724 (1.3%) | 455 (0.1%) | <.001 |
group | 2 (eye) | 106 (0.0%) | NA | . |
3 (ENT) | 956 (0.2%) | 5,262 (0.7%) | . | |
4 (respiratory system) | 211,490 (41.5%) | 229,314 (30.9%) | . | |
5 (circulatory system) | 252,883 (49.6%) | 288,396 (38.8%) | . | |
6 (digestive system) | 4,671 (0.9%) | 50,947 (6.9%) | . | |
7 (liver and pancreas) | 1,927 (0.4%) | NA | . | |
8 (musculoskeletal system) | 3,423 (0.7%) | NA | . | |
9 (skin) | 6,568 (1.3%) | 65,787 (8.9%) | . | |
10 (endocrine and nutritional) | 2,612 (0.5%) | 20,807 (2.8%) | . | |
11 (urinary system) | 3,786 (0.7%) | 79,428 (10.7%) | . | |
12 (genital, male) | 331 (0.1%) | 4 (0.0%) | . | |
13 (genital, female) | 165 (0.0%) | NA | . | |
14 (obstetrics) | 407 (0.1%) | NA | . | |
15 (childbirth) | 143 (0.0%) | 95 (0.0%) | . | |
16 (haematology) | 2,607 (0.5%) | NA | . | |
17 (haematology, others) | 1,319 (0.3%) | NA | . | |
18 (infectious diseases) | 2,125 (0.4%) | 301 (0.0%) | . | |
19 (psychiatry) | 1,147 (0.2%) | NA | . | |
20 (psychiatry, organic) | 329 (0.1%) | NA | . | |
21 (external causes) | 754 (0.2%) | NA | . | |
22 (burns) | 142 (0.0%) | NA | . | |
23 (other) | 3,092 (0.6%) | NA | ||
25 (HIV) | 1,040 (0.2%) | 1,521 (0.2%) | . | |
26 (polytrauma) | 431 (0.1%) | NA | ||
27 (transplantations) | 415 (0.1%) | 157 (0.0%) | ||
28 (very short stays) | 613 (0.1%) | 0 | ||
Type | Surgical procedure | 16,002 (3.1%) | 98,545 (13.3%) | <.001 |
Non-surgical procedure | 24,753 (4.9%) | 50,899 (6.9%) | . | |
Medical stay | 466,249 (91.4%) | 592,961 (79.9%) | . | |
Short stays | 3,202 (0.6%) | 69 (0.0%) | ||
Severity | 1 (low) | 107,578 (21.1%) | 229,912 (31.0%) | <.001 |
2 | 150,140 (29.4%) | 164,501 (22.2%) | . | |
3 | 143,854 (28.2%) | 174,614 (23.5%) | . | |
4 (high) | 34,814 (6.8%) | 37,813 (5.1%) | ||
Sex | Male | 269,771 (52.9%) | 370,053 (49.8%) | <.001 |
Female | 240,435 (47.1%) | 372,421 (50.16%) | . | |
Age (yrs) | (mean, SD) | 72 (20) | 61 (29) | <.001 |
0-17 yr | 21,142 (4.1%) | 100,629 (13.6%) | <.001 | |
18-64 yr | 111,164 (21.8%) | 214,170 (28.9%) | ||
65-74 yr | 78,589 (15.4%) | 90,402 (12.2%) | ||
≥75. yr | 299,311 (58.7%) | 337,273 (45.4%) | ||
Length of stay (days) | (mean, SD) | 9.6 (11.5) | 7.3 (8.5) | <.001 |