Table 3 Incidence rates (IRs, per 1000 person-months) and incidence rate ratios (IRRs) of individual psychiatric disorders and cardiovascular diseases during the 6 weeks before diagnosis of women that had a breast diagnostic workup, a population-based cohort study during 2005–2014 in Skåne, Sweden
Reference group* | Unspecified lump in breast | Benign tumor | Breast cancer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
No. | Crude IR | IRR (95% CI)† | No. | Crude IR | IRR (95% CI)† | No. | Crude IR | IRR (95% CI)† | No. | Crude IR | IRR (95% CI)† | |
Psychiatric disorder | ||||||||||||
Stress reaction or adjustment disorder | 148,638 | 2.7 | 1.0 | 102 | 4.7 | 1.2 (1.0–1.5) | 32 | 5.2 | 1.6 (1.1–2.3) | 38 | 3.3 | 1.5 (1.1–2.0) |
Depression | 296,613 | 5.5 | 1.0 | 165 | 7.5 | 1.1 (0.9–1.2) | 47 | 7.6 | 1.2 (0.9–1.7) | 91 | 7.9 | 1.3 (1.1–1.6) |
Anxiety | 198,330 | 3.6 | 1.0 | 147 | 6.7 | 1.3 (1.1–1.6) | 31 | 5.0 | 1.2 (0.8–1.7) | 51 | 4.4 | 1.3 (1.0–1.7) |
Substance abuse | 58,007 | 1.1 | 1.0 | 31 | 1.4 | 1.1 (0.8–1.6) | 16 | 2.6 | 2.3 (1.4–3.7) | 24 | 2.1 | 1.8 (1.2–2.7) |
Others | 252,763 | 4.7 | 1.0 | 133 | 6.1 | 1.0 (0.8–1.2) | 29 | 4.7 | 0.9 (0.6–1.3) | 74 | 6.4 | 1.4 (1.1–1.7) |
Cardiovascular disease | ||||||||||||
Myocardial infarction | 18,727 | 0.3 | 1.0 | 3 | 0.1 | 0.9 (0.3–2.8) | 2 | 0.3 | 1.8 (0.4–7.1) | 6 | 0.5 | 0.8 (0.4–1.9) |
Hypertensive diseases or aneurysm of the heart | 525,505 | 9.7 | 1.0 | 130 | 5.9 | 0.9 (0.8–1.1) | 63 | 10.2 | 1.5 (1.1–1.9) | 419 | 36.2 | 2.1 (2.0–2.4) |
Embolism or thrombosis | 13,511 | 0.2 | 1.0 | 3 | 0.1 | 0.8 (0.2–2.4) | 1 | 0.2 | 0.8 (0.1–5.9) | 16 | 1.4 | 3.4 (2.1–5.5) |
Stroke | 33,808 | 0.6 | 1.0 | 3 | 0.1 | 0.4 (0.1–1.3) | 1 | 0.2 | 0.4 (0.1–3.0) | 20 | 1.7 | 1.5 (1.0–2.4) |
Other diseases of the circulatory system | 502,776 | 9.3 | 1.0 | 158 | 7.2 | 1.3 (1.1–1.5) | 49 | 8.0 | 1.2 (0.9–1.6) | 316 | 27.3 | 1.7 (1.5–1.9) |