Table 3: Linked Hospital Episode Statistics (HES) Admitted Patient Care (APC) data between date of last interview/2000 and date of wave 8 (age 50) interview against self-reported day patient or in-patient attendance at wave 8 (age 50) in the National Child Development Study (NCDS): males and females combined.

		Linked HES APC data between date of last interview/2000 and date of wave 8 (age 50) interview
		Individuals with linked APC data			Individuals with at least one linked HES dataset			All linkage consenters
		No linked HES data	Linked HES data	Total	No linked HES data	Linked HES data	Total	No linked HES data	Linked HES data	Total
Age 50 day patient or in-patient attendance	No	2,441 (78.8)	657 (21.2)	3,098	3,615 (84.6)	657 (15.4)	4,272	4,050 (86.0)	657 (14.0)	4,707
	Yes	309 (17.7)	1,438 (82.3)	1,747	408 (22.1)	1,438 (77.9)	1,846	447 (23.7)	1,438 (76.3)	1,885
	Total	2,750 (56.8)	2,095 (43.2)	4,845	4,023 (65.8)	2,095 (34.2)	6,118	4,497 (68.2)	2,095 (31.8)	6,592