Table 2. Discrepancy in informal care provider and recipient reports.

	Dyad type:
	Unconfirmed by Recipient	Unconfirmed by Provider	Confirmed
n %	128 (9.25)	785 (56.72)	471 (34.03)
Under reported proportiona	21.37	62.50
England and Wales level n	528,403	3,240,114	1,943,954

^aNote: Based on 1384 dyads where both individuals in the dyad have completed a full interview and have complete cases for the extended set of characteristics.

The under-reported percentage for recipients is calculated as $\frac{{\sum }_{d}R}{{\sum }_{d}R+{\sum }_{d}PR}$ using the number of unconfirmed recipient and confirmed dyads. The under-reported proportion for providers is calculated as $\frac{{\sum }_{d}P}{{\sum }_{d}P+{\sum }_{d}PR}$ using the number of unconfirmed provider confirmed dyads.