Table 5. Misclassification matrix for six leading ill-defined causes of death, ages 70 years and over, the Islamic Republic of Iran, 2005–2006.
| Medical record diagnosis | IDC-10 code | Death registration diagnosis |
||||||
|---|---|---|---|---|---|---|---|---|
| Other cardiac diseases | Other and unspecified disorders of the circulatory system | Heart failure | Hypertensive disease | Other respiratory diseases | Senility and unknownb | Total | ||
| Other cardiac diseases | I27–I29, I44–I49, I51 | 1 | 5 | 3 | 4 | 8 | 3 | 24 |
| Other and unspecified disorders of the circulatory system | I90–I99 | 1 | 1 | 1 | 0 | 1 | 0 | 4 |
| Heart failure | I50 | 14 | 0 | 7 | 1 | 15 | 3 | 40 |
| Hypertensive disease | I10–I13 | 5 | 16 | 1 | 4 | 8 | 3 | 37 |
| Ischaemic heart disease | I20–I25 | 24 | 43 | 65 | 15 | 56 | 16 | 219 |
| Cerebrovascular disease | I60–I69 | 3 | 60 | 15 | 11 | 23 | 9 | 121 |
| Other specified cardiovascular diseases | a | 2 | 5 | 5 | 0 | 5 | 2 | 19 |
| Influenza and pneumonia | J12–J18 | 0 | 2 | 0 | 4 | 2 | 4 | 12 |
| Chronic lower respiratory diseases | J40–J44 | 1 | 7 | 6 | 17 | 17 | 3 | 51 |
| Other respiratory diseases | J64–J84, J87–J99 | 2 | 0 | 1 | 7 | 6 | 0 | 16 |
| Diabetes | E10–E14 | 0 | 12 | 1 | 3 | 19 | 4 | 39 |
| Neoplasms | C0–0D48 | 0 | 1 | 0 | 5 | 6 | 0 | 12 |
| Digestive diseases | K00–K93 | 4 | 2 | 9 | 5 | 10 | 7 | 37 |
| Genitourinary diseases | N17–N98 | 2 | 4 | 4 | 6 | 8 | 1 | 25 |
| Infectious diseases | A00–B99 | 2 | 5 | 2 | 1 | 3 | 5 | 18 |
| Injuries | V01–Y98 | 4 | 4 | 3 | 7 | 13 | 4 | 35 |
| Other causes | 0 | 6 | 6 | 3 | 9 | 5 | 29 | |
| Total | – | 65 | 173 | 129 | 93 | 209 | 69 | 738 |
a Codes for this category include: I26, I30–I43, I70–I79. b Because of the relatively small number of deaths assigned to the two component causes, they have been aggregated for analytical purposes.