IADLs 0 1 2 3 4 5 6 7 8 9 10
Wave one 1424 463 276 180 146 117 86 102 60 63 128
46.77% 15.21% 9.06% 5.91% 4.79% 3.84% 2.82% 3.35% 1.97% 2.07% 4.20%
Wave two 1175 302 182 169 84 88 83 71 53 58 172
48.22% 12.39% 7.47% 6.93% 3.45% 3.61% 3.41% 2.91% 2.17% 2.38% 7.06%
Wave three 959 186 124 111 80 74 70 79 50 56 182
48.66% 9.44% 6.29% 5.63% 4.06% 3.75% 3.55% 4.01% 2.54% 2.84% 9.23%
Wave four 812 146 88 113 69 71 64 57 50 62 141
48.54% 8.73% 5.26% 6.75% 4.12% 4.24% 3.83% 3.41% 2.99% 3.71% 8.43%
Table 1: Frequency of IADLs at wave one, two, three and four.