Table 2.
Country | Period | Death toll (million) | Births at risk (1000s) | Case_Aa | Case_Bb | Ratio_A (%) | Ratio_B (%) |
---|---|---|---|---|---|---|---|
China | 1959–61 | 30 | 40,000 | 200,000 | 160,000 | 0.67 | 0.53 |
Netherlands | 1944–45 | 0.02 | 13 | 65 | 62 | 0.33 | 0.31 |
Leningrad | 1941–43 | 0.7 | 100 | 500 | 400 | 0.07 | 0.06 |
Ukraine | 1932–33 | 3.6 | 600 | 3000 | 2400 | 0.08 | 0.07 |
Ireland | 1846–50 | 1 | 900 | 4500 | 3000 | 0.45 | 0.30 |
Ratio = Schizophrenia cases as percentage of excess deaths toll.
aCase_A estimates of the extra cases of schizophrenia using the increase in the odds of developing the disease (d), the prevalence of the disease in normal times (p), and the number of births at risk due to foetal exposure (B).
bCase_B follows Case_A’s estimates but assumes loss rates of 5% among schizophrenia cases for the Netherlands, 20% for China, Ukraine, Leningrad, and one-third for Ireland.