CHS Cohort Retention
Loss to follow-up (100% - retention) includes all recruited participants in the denominator; the numerator (lost to follow-up) includes all living persons who have dropped out of the study (asked that we not contact them again) or whom we could not locate at the Year 15 follow-up contact. A deceased person was considered to be lost to follow-up if he/she dropped out of the study or could not be located at the clinic visit prior to his/her death.
CHS Participant Retention by Exam Year (Original Cohort)
(Table continues on the following two pages.)
Site |
Year |
||||
|
|
|
|
|
|
|
3 |
4 |
5 |
6 |
7 |
|
N (%) |
N (%) |
N (%) |
N (%) |
N (%) |
Wake Forest |
|
|
|
|
|
Enrolled |
1305 |
1305 |
1300 |
1300 |
1300 |
Completed* |
1257 (98.2) |
1205 (96.4) |
1056 (87.3) |
1051 (90.1) |
1037 (92.8) |
Deceased (cum) |
25 (1.8) |
55 (4.2) |
90 (6.9) |
134 (10.3) |
182 (14.0) |
Refused* |
16 (1.3) |
23 (1.8) |
95 (7.9) |
87 (7.5) |
71 (6.3) |
Oth. reas./not done* |
7 (0.5) |
22 (1.8) |
59 (4.9) |
28 (2.4) |
10 (0.9) |
|
|
|
|
|
|
Davis |
|
|
|
|
|
Enrolled |
1318 |
1318 |
1318 |
1318 |
1318 |
Completed* |
1248 (96.7) |
1229 (97.0) |
1238 (99.7) |
1175 (96.8) |
1095 (93.7) |
Deceased (cum) |
27 (2.0) |
51 (3.9) |
77 (5.8) |
105 (8.0) |
149 (11.3) |
Refused* |
18 (1.4) |
24 (1.9) |
1 (0.1) |
31 (2.6) |
57 (4.9) |
Oth. reas./not done* |
25 (1.9) |
14 (1.1) |
2 (0.2) |
7 (0.6) |
17 (1.4) |
|
|
|
|
|
|
Johns Hopkins |
|
|
|
|
|
Enrolled |
1303 |
1303 |
1305 |
1305 |
1305 |
Completed* |
1246 (97.9) |
1165 (93.8) |
1138 (94.4) |
1086 (93.7) |
1036 (93.5) |
Deceased (cum) |
29 (2.2) |
61 (4.9) |
100 (7.7) |
146 (11.2) |
197 (15.1) |
Refused* |
15 (1.2) |
39 (3.1) |
37 (3.1) |
43 (3.7) |
61 (5.5) |
Oth. reas./not done* |
13 (1.0) |
38 (3.1) |
30 (2.5) |
30 (2.6) |
11 (1.0) |
|
|
|
|
|
|
Pittsburgh |
|
|
|
|
|
Enrolled |
1275 |
1275 |
1278 |
1278 |
1278 |
Completed* |
1219 (97.1) |
1199 (97.4) |
1145 (96.1) |
1100 (95.1) |
1080 (96.5) |
Deceased (cum) |
19 (1.5) |
44 (3.5) |
87 (6.9) |
121 (9.5) |
159 (12.4) |
Refused* |
24 (1.9) |
26 (2.1) |
37 (3.1) |
30 (2.6) |
33 (2.9) |
Oth. reas./not done* |
13 (1.0) |
6 (0.5) |
9 (0.8) |
27 (2.3) |
6 (0.6 |
|
|
|
|
|
|
TOTAL |
|
|
|
|
|
Enrolled |
5201 |
5201 |
5201 |
5201 |
5201 |
Completed* |
4970 (97.4) |
4798 (96.2) |
4577 (94.4) |
4412 (94.0) |
4248 (94.1) |
Deceased (cum) |
100 (1.9) |
211 (4.1) |
354 (6.8) |
506 (9.7) |
687 (13.2) |
Refused* |
73 (1.4) |
112 (2.2) |
170 (3.5) |
191 (4.1) |
222 (4.9) |
Oth. reas./not done* |
58 (1.1) |
80 (1.6) |
100 (2.1 |
92 (1.9) |
44 (1.0) |
Site |
Year |
||||
|
|
|
|
|
|
|
8 |
9 |
10 |
11 |
12 |
|
N (%) |
N (%) |
N (%) |
N (%) |
N (%) |
Wake Forest |
|
|
|
|
|
Enrolled |
1302 |
1302 |
1302 |
1302 |
1302 |
Completed* |
973 (90.9) |
946 (92.6) |
909 (93.6) |
848 (93.0) |
791 (92.4) |
Deceased (cum) |
232 (17.8) |
280 (21.5) |
331 (25.4) |
387 (29.7) |
446 (34.3) |
Refused* |
82 (7.7) |
60 (5.9) |
48 (4.9) |
49 (5.4) |
24 (2.8) |
Oth. reas./not done* |
15 (1.4) |
16 (1.6) |
14 (1.4) |
18 (1.8) |
41 (4.8) |
|
|
|
|
|
|
Davis |
|
|
|
|
|
Enrolled |
1318 |
1318 |
1318 |
1318 |
1318 |
Completed* |
1075 (95. |
975 (91.8) |
973 (97.2) |
914 (97.0) |
784 (88.5) |
Deceased (cum) |
192 (14.6 |
256 (19.4) |
317 (24.1) |
373 (28.3) |
432 (32.8) |
Refused* |
31 (2.7) |
64 (6.0) |
23 (2.3) |
29 (3.1) |
69 (7.8) |
Oth. reas./not done* |
20 (1.8) |
23 (2.2) |
5 (0.5) |
2 (0.2) |
33 (3.7) |
|
|
|
|
|
|
Johns Hopkins |
|
|
|
|
|
Enrolled |
1304 |
1304 |
1304 |
1304 |
1304 |
Completed* |
998 (94.6 |
939 (94.5) |
867 (93.3) |
813 (93.0) |
719 (89.5) |
Deceased (cum) |
249 (19.1) |
310 (23.8) |
375 (28.8) |
433 (33.2) |
501 (38.4) |
Refused* |
53 (5.0) |
49 (4.9) |
57 (6.1) |
53 (6.1) |
27 (3.4) |
Oth. reas./not done* |
4 (0.4) |
6 (0.6) |
5 (0.5) |
5 (0.5) |
57 (7.1) |
|
|
|
|
|
|
Pittsburgh |
|
|
|
|
|
Enrolled |
1277 |
1277 |
1277 |
1277 |
1277 |
Completed* |
1029 (96.0) |
978 (95.4) |
941 (97.2) |
870 (96.0) |
766 (91.1) |
Deceased (cum) |
209 (16.4 |
252 (19.7) |
309 (24.2) |
374 (29.3) |
436 (34.1) |
Refused* |
25 (2.4) |
32 (3.1) |
20 (2.1) |
28 (3.1) |
48 (5.7) |
Oth. reas./not done* |
14 (1.3) |
15 (1.5) |
7 (0.8) |
4 (0.4) |
27 (3.2) |
|
|
|
|
|
|
TOTAL |
|
|
|
|
|
Enrolled |
5201 |
5201 |
5201 |
5201 |
5201 |
Completed* |
4075 (94.0) |
3838 (93.5) |
3690 (95.4) |
3445 (95.0) |
3060 (90.4) |
Deceased (cum) |
882 (16.6) |
1098 (21.1) |
1332 (25.6) |
1567 (30.1) |
1815 (34.9) |
Refused* |
191 (4.4) |
205 (5.0) |
148 (3.8) |
159 (4.4) |
168 (5.0) |
Oth. reas./not done |
53 (1.2) |
60 (1.5) |
31 (0.8) |
30 (0.8) |
158 (4.7) |
Site |
Year |
|||||
|
|
|
|
|
|
|
|
13 |
14 |
15 |
16 |
17 |
18 |
|
N (%) |
N (%) |
N (%) |
N (%) |
N (%) |
N (%) |
Wake Forest |
|
|
|
|
|
|
Enrolled |
1303 |
1303 |
1303 |
1303 |
1303 |
1303 |
Completed* |
696 (88.1) |
665 (91.7) |
580 (86.8) |
509 (85.0) |
445 (83.0) |
376 (78.7) |
Deceased (cum) |
513 (39.4) |
578 (44.4) |
635 (48.7) |
705 (54.1) |
767 (58.9) |
825 (63.3) |
Refused* |
46 (5.8) |
49 (6.8) |
62 (9.3) |
69 (11.5) |
75 (14.0) |
87 (18.2) |
Oth. reas./not done* |
48 (6.1) |
11 (1.5) |
26 (3,9) |
20 (3.3) |
16 (3.0) |
15 (3.1) |
|
|
|
|
|
|
|
Davis |
|
|
|
|
|
|
Enrolled |
1318 |
1318 |
1318 |
1318 |
1318 |
1318 |
Completed* |
733 (89.3) |
736 (96.2) |
684 (96.7) |
608 (95.0) |
551 (93.9) |
461 (88.5) |
Deceased (cum) |
497 (37.7) |
553 (42.0) |
611 (46.4) |
678 (51.4) |
731 (55.5) |
797 (60.5) |
Refused* |
44 (5.4) |
19 (2.5) |
5 (0.7) |
20 (3.1) |
24 (4.1) |
37 (7.1) |
Oth. reas./not done* |
44 (5.4) |
10 (1.3) |
18 (2.5) |
12 (1.9) |
12 (2.0) |
23 (4.4) |
|
|
|
|
|
|
|
Johns Hopkins |
|
|
|
|
|
|
Enrolled |
1304 |
1304 |
1304 |
1304 |
1304 |
1304 |
Completed* |
600 (80.5) |
578 (85.4) |
542 (87.1) |
484( 87.7) |
437( 86.9) |
379 (84.8) |
Deceased (cum) |
559 (42.9) |
627 (48.1) |
684 (52.5) |
752 (57.7) |
801 (61.4) |
857 (65.7) |
Refused* |
129 (17.3) |
78 (11.5) |
61 (9.8) |
60 (10.9) |
43 (8.5) |
41 (9.2) |
Oth. reas./not done* |
16 (2.1) |
21(3.1) |
17 (2.7) |
8 (1.4) |
23 (4.6) |
27 (6.0) |
|
|
|
|
|
|
|
Pittsburgh |
|
|
|
|
|
|
Enrolled |
1276 |
1276 |
1276 |
1276 |
1276 |
1276 |
Completed* |
623 (80.4) |
635 (88.0) |
580 (86.8) |
538 (87.5) |
489 (89.6) |
448 (90.0) |
Deceased (cum) |
501 (39.3) |
554 (43.4) |
608 (47.6) |
661 (51.8) |
730 (57.2) |
778 (61.0) |
Refused* |
55 (7.1) |
65 (9.0) |
71 (10.6) |
57 (9.3) |
44 (8.1) |
48 (9.6) |
Oth. reas./not done* |
97 (12.5) |
22 (3.0) |
17 (2.5) |
20 (3.3) |
13 (2.4) |
2 (0.4) |
|
|
|
|
|
|
|
TOTAL |
|
|
|
|
|
|
Enrolled |
5201 |
5201 |
5201 |
5201 |
5201 |
5201 |
Completed* |
2652 (84.7) |
2614 (90.5) |
2386 (89.6) |
2139 (88.9) |
1922 (88.5) |
1664 (85.6) |
Deceased (cum) |
2070 (39.8) |
2312 (44.5) |
2538 (48.8) |
2796 (53.8) |
3029 (58.2) |
3257 (62.6) |
Refused* |
274 (8.8) |
211 (7.3) |
199 (7.5) |
206 (8.6) |
186 (8.6) |
213 (11.0) |
Oth. reas./not done* |
205 (6.5) |
64 (2.2) |
78 (2.9) |
60 (2.5) |
64 (2.9) |
67 (3.4) |
CHS Participant Retention by Exam Year (African American cohort)
(Table continues on the following page.)
Site |
Year |
|
|||||
|
|
|
|
|
|
|
|
|
6 |
7 |
8 |
9 |
10 |
11 |
12 |
|
N (%) |
N (%) |
N (%) |
N (%) |
N (%) |
N (%) |
N (%) |
Wake Forest |
|
|
|
|
|
|
|
Enrolled |
238 |
238 |
238 |
238 |
238 |
238 |
238 |
Completed* |
218 (93.6) |
209 (92.5) |
205 (94.5) |
199 (95.2) |
192 (97.0) |
173 (93.0) |
145 (82.9) |
Deceased (cum) |
5 (2.1) |
12 (5.0) |
21 (8.8) |
29 (12.2) |
40 (16.8) |
1 (21.4) |
63 (26.5) |
Refused* |
13 (5.6) |
12 (5.3) |
8 (3.7) |
6 (2.9) |
5 (2.5) |
8 (4.3) |
2 (1.1) |
Oth. reas./not done* |
2 (0.8) |
5 (2.2) |
4 (1.8) |
4 (1.9) |
1 (0.5) |
6 (3.0) |
28 (16.0) |
|
|
|
|
|
|
|
|
Davis |
|
|
|
|
|
|
|
Enrolled |
225 |
225 |
225 |
225 |
225 |
225 |
225 |
Completed* |
210 (94.6) |
181 (81.9) |
194 (90.7) |
191 (92.7) |
186 (94.9) |
180 (96.0) |
153 (82.7) |
Deceased (cum) |
3 (1.3) |
4 (1.8) |
11 (4.9) |
19 (8.4) |
29 (12.9) |
38 (16.9) |
40 (27.8) |
Refused* |
9 (4.0) |
29 (13.1) |
11 (5.1) |
11 (5.3) |
6 (3.1) |
3 (1.6) |
18 (9.7) |
Oth. reas./not done* |
3 (1.4) |
11 (5.0) |
9 (4.2) |
4 (1.9) |
4 (2.0) |
4 (2.0) |
14 (7.6) |
|
|
|
|
|
|
|
|
Pittsburgh |
|
|
|
|
|
|
|
Enrolled |
224 |
224 |
224 |
224 |
224 |
224 |
224 |
Completed* |
213 (98.2) |
204 (97.6) |
188 (94.0) |
185 (96.4) |
181 (98.4) |
166 (94.0) |
159 (94.1) |
Deceased (cum) |
7 (3.1) |
15 (6.7) |
24 (10.7) |
32 (14.3) |
40 (17.9) |
47 (21.0) |
55 (24.6) |
Refused* |
3 (1.4) |
5 (2.4) |
8 (4.0) |
6 (3.1) |
2 (1.1) |
10 (5.6) |
3 (1.8) |
Oth. reas./not done* |
1 (0.4) |
0 (0.0) |
4 (2.0) |
1 (0.5) |
1 (0.5) |
1 (0.5) |
7 (4.1) |
|
|
|
|
|
|
|
|
Total |
|
|
|
|
|
|
|
Enrolled |
687 |
687 |
687 |
687 |
687 |
687 |
687 |
Completed* |
641 (95.4) |
594 (90.5) |
587 (93.0) |
575 (94.7) |
559 (96.7) |
519 (94.0) |
457 (86.4) |
Deceased (cum) |
15 (2.2) |
31 (4.5) |
56 (8.2) |
80 (11.6) |
109 (15.9) |
136 (19.8) |
158 (23.0) |
Refused* |
25 (3.7) |
46 (7.0) |
27 (4.3) |
23 (3.8) |
13 (2.2) |
21 (3.8) |
23 (4.3) |
Oth. Reas./not done* |
6 (0.9) |
16 (2.5) |
17 (2.7) |
9 (1.5) |
6 (1.0) |
11 (1.9) |
49 (9.3) |
Site |
Year |
|||||
|
|
|
|
|
|
|
|
13 |
14 |
15 |
16 |
17 |
18 |
|
N (%) |
N (%) |
N (%) |
N (%) |
N (%) |
N (%) |
Wake Forest |
|
|
|
|
|
|
Enrolled |
238 |
238 |
238 |
238 |
238 |
238 |
Completed* |
150 (92.0) |
148 (93.7) |
130 (90.3) |
110 (83.3) |
102 (84.3) |
86 (76.1) |
Deceased (cum) |
75 (31.5) |
80 (33.6) |
94 (39.5) |
109 (45.8) |
117 (49.2) |
125 (52.5) |
Refused* |
6 (3.7) |
8 (5.1) |
7 (4.9) |
8 (6.2) |
7 (5.8) |
15 (13.3) |
Oth. reas./not done* |
6 (3.7) |
2 (1.3) |
7 (4.9) |
11 (8.5) |
12 (9.9) |
12 (10.6) |
|
|
|
|
|
|
|
Davis |
|
|
|
|
|
|
Enrolled |
225 |
225 |
225 |
225 |
225 |
225 |
Completed* |
150 (87.2) |
145 (92.9) |
133 (94.3) |
120 (88.9) |
113 (90.4) |
95 (79.8) |
Deceased (cum) |
53 (23.6) |
69 (30.7) |
84 (37.3) |
90 (40.0) |
100 (44.4) |
106 (47.1) |
Refused* |
3 (1.7) |
6 (3.8) |
5 (3.5) |
7 (5.1) |
6 (4.8) |
17 (14.3) |
Oth. reas./not done* |
19 (11.0) |
5 (3.2) |
3 (2.1) |
8 (5.9) |
6 (4.8) |
7 (5.9) |
|
|
|
|
|
|
|
Pittsburgh |
|
|
|
|
|
|
Enrolled |
224 |
224 |
224 |
224 |
224 |
224 |
Completed* |
131 (81.4) |
138 (93.9) |
125 (91.9) |
108 (89.3) |
102 (91.9) |
97 (89.8) |
Deceased (cum) |
63 (28.1) |
77 (34.4) |
88 (39.3) |
103 (46.0) |
113 (50.4) |
116 (51.8) |
Refused* |
5 (3.1) |
7 (4.8) |
8 (5.9) |
9 (7.4) |
7 (6.3) |
9 (8.3) |
Oth. reas./not done* |
25 (15.5) |
2 (1.4) |
3 (2.2) |
4 (3.3) |
2 (1.8) |
2 (1.9) |
|
|
|
|
|
|
|
Total |
|
|
|
|
|
|
Enrolled |
687 |
687 |
687 |
687 |
687 |
687 |
Completed* |
431 (86.9) |
431 (93.5) |
388 (92.2) |
338 (87.8) |
317 (88.8) |
278 (81.8) |
Deceased (cum) |
191 (27.8) |
226 (32.9) |
266 (38.7) |
302 (44.0) |
330 (48.0) |
347 (50.5) |
Refused* |
14 (2.8) |
21 (4.6) |
20 (4.8) |
24 (6.2) |
20 (5.6) |
41 (12.1) |
Oth. Reas./not done* |
51 (10.3) |
9 (2.0) |
13 (3.1) |
23 (6.0) |
20 (5.6) |
21 (6.2) |
| File Type | application/msword |
| Author | olsonj |
| Last Modified By | olsonj |
| File Modified | 2007-10-30 |
| File Created | 2007-10-30 |