Table 2.

 Incidence of dementia by deprivation fifth

Deprivation fifth	Age band (years)
	60-69	70-79	80-89	≥90
1 (low)	0.42 (0.36 to 0.47)	2.87 (2.70 to 3.04)	10.74 (10.27 to 11.21)	11.58 (10.68 to 12.48)
2	0.41 (0.36 to 0.47)	3.01 (2.83 to 3.19)	10.28 (9.83 to 10.73)	11.71 (10.84 to 12.59)
3	0.55 (0.48 to 0.63)	3.32 (3.12 to 3.52)	10.82 (10.36 to 11.29)	11.32 (10.47 to 12.18)
4	0.61 (0.53 to 0.69)	3.97 (3.74 to 4.20)	11.58 (11.08 to 12.08)	12.35 (11.39 to 13.30)
5 (high)	0.70 (0.59 to 0.81)	4.17 (3.88 to 4.46)	11.87 (11.26 to 12.48)	11.48 (10.35 to 12.60)
Rate ratio*	1.68 (1.40 to 2.03)	1.45 (1.34 to 1.58)	1.11 (1.04 to 1.18)	0.99 (0.89 to 1.10)

*Highest versus lowest fifth of deprivation.