Pattern Type of Pattern No. of Participants Average time in the study (Yrs.) Mean cognition Percent Black
Complete CCCC 2035 9.32 0.314 64%

Non-Participation
1

CCCM 164 9.53 0.229 65%
2 CCMC 185 6.54 0.230 60%
3 CCMM 248 6.62 0.288 56%
4 CMCC 74 3.20 0.272 67%
5 CMMC 40 3.21 0.290 65%
6 CMMM 240 3.31 0.170 62%
7 CMCM 39 3.27 -0.002 77%
Deceased
1
CD 1423 2.73 -.525 62%
2 CMD 2 6.90 -.086 50%
3 CCD 1043 5.53 -.193 56%
4 CCCD 598 8.06 -.110 65%
5 CCMD 14 6.85 -.572 50%
Table 2: The characteristics of patterns defined for non-participation and death among the study sample, where “C” refers to completed observation, “M” refers to non-participants and “D” refers to the deceased.