Table 3.

Cohen's κ statistics for agreement between methods of assigned maternal cause of death (N=143)

	κ (95% CI)*
Three-category classification (ICD-MM)
Physician review versus InterVA-4	0·56 (0·43–0·66)
Physician review versus InterVA-5	0·44 (0·30–0·57)
InterVA-4 versus InterVA-5	0·72 (0·60–0·84)
Nine-category classification (ICD-MM)
Physician review versus InterVA-4	0·48 (0·38–0·58)
Physician review versus InterVA-5	0·36 (0·27–0·46)
InterVA-4 versus InterVA-5	0·69 (0·59–0·79)

ICD-MM=International Classification of Diseases-Maternal Mortality. InterVA=interpreting verbal autopsy.

^*A κ statistic of less than 0·40 was considered poor agreement, 0·40–0·75 fair to good agreement, and greater than 0·75 excellent agreement.