Table 3. Relation between the occurrence of cold spells and the risk of ischaemic SCD according to age, sex, and prior diagnosis of ischaemic heart disease.
| Diagnosed OR (95%CI) | Undiagnosed OR (95%CI) | All OR (95% CI) | |
|---|---|---|---|
| All | 1.14 (0.61–2.10) | 1.70 (1.13–2.56) | 1.49 (1.06–2.09) |
| Age | |||
| Age 35–64 | 2.45 (0.91–6.64) | 1.42 (0.77–2.62) | 1.63 (0.97–2.75) |
| Age 65+ | 0.77 (0.34–1.73) | 1.99 (1.14–3.45) | 1.39 (0.89–2.18) |
| Sex | |||
| Men | 1.23 (0.63–2.42) | 1.56 (0.98–2.48) | 1.44 (0.98–2.11) |
| Women | 0.78 (0.17–3.63) | 2.35 (0.98–5.66) | 1.69 (0.80–3.56) |
Unadjusted odds ratios (OR) and 95% confidence intervals (CI) representing the relation between the occurrence of cold spells and the risk of ischaemic SCD. Diagnosed, the case had been diagnosed with ischaemic heart disease during lifetime.