Table 1.
Comorbidities and causes of death used in the study.
| Comorbidity Identified in Tomlins et al. (2020) [12] | Cause of Death—ICD-10 Code | Cause of Death—ICD-10 Code Included in the Research | Cause of Death in the Study |
|---|---|---|---|
| Hypertension | I10–I15 Hypertensive diseases | Other diseases of the circulatory system (remainder of I00–I99) | Other circulatory |
| Ischaemic heart disease | I20–I25 Ischaemic heart diseases | Ischaemic heart diseases (I20–I25) | Ischaemic heart |
| Cardiac failure | I50 Heart failure | Other heart diseases (I30–I51) | Other heart diseases |
| Arrhythmia | I49 Other cardiac arrhythmias | Other heart diseases (I30–I51) | |
| Valve disease | I30–51 Other heart diseases | Other heart diseases (I30–I51) | |
| Cerebrovascular | I60–69 Cerebrovascular diseases | Cerebrovascular diseases (I60–I69) | Cerebrovascular |
| Asthma | J45–46 Asthma and status asthmaticus | Asthma and status asthmaticus (J45–J46) | Asthma |
| Chronic obstructive pulmonary diseases | J44 Other chronic obstructive pulmonary disease (COPD) | Other lower respiratory diseases (J40–44_47) | Other lower respiratory |
| Bronchiectasis | J47. Bronchiectasis | Other lower respiratory diseases (J40–44_47) | |
| Obstructive sleep apnoea | G47.3. Sleep apnoea | Other lower respiratory diseases (J40–44_47) | |
| Gastrointestinal disease | Disease of the digestive system, unspecified K92.2 | Other diseases of the digestive system (remainder of K00–K93) | Other digestive diseases |
| Endocrine disease | E34–35 Endocrine disorders | Another endocrine, nutritional and metabolic diseases (remainder of E00–E90) | Other endocrine diseases |
| Obesity | Obesity and other hyperalimentation (E65–E68) | Another endocrine, nutritional and metabolic diseases (remainder of E00–E90) | |
| Diabetes | Diabetes mellitus (E10–14) | Diabetes mellitus (E10–14) | Diabetes |
| Malignancy | Malignant neoplasms (C00–C97) | Malignant neoplasms (C00–C97) | Malignancy |
| Neurological disease | Diseases of the nervous system and the sense organs (G00–H95) | Diseases of the nervous system and the sense organs (G00–H95) | Nervous system |
| Renal disease | Diseases of kidney and ureter N00–N29 | Diseases of the genitourinary system (N00–N99) | Genitourinary |
| Immunocompromised | D80-D89 Certain disorders involving the immune mechanism | Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50–89) | Blood |
| Influenza | J09–J11 Influenza (including swine flu) | Influenza (including swine flu) (J09–J11) | Influenza |