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Table 1 Time (days) taken per centre to commence recruitment, including research approvals, time to screen for eligible patients and time to first recruit (in ascending order according to the total time to recruit)

From: Lessons learnt recruiting to a multi-site UK cohort study to explore recovery of health and well-being after colorectal cancer (CREW study)

Centre Site selection to research approvals submission Research submission to research approval Total time from site selection to research approval Research approval to coordinating centre permission Coordinating centre permission to 1st screening 1st screen to 1st patient recruited Research approval to 1st patient recruited Total site selection to 1st recruit
C 13 35 48 5 0 0 5 53
BB 0 42 42 0 0 17 17 59
B 13 23 36 0 10 15 25 61
D 26 20 46 8 6 7 21 67
E 49 0 49 0 11 12 23 72
F Data not available 63 3 4 4 11 74
G 25 16 41 12 10 12 34 75
H 35 0 35 0 48 0 48 83
I 35 28 63 0 27 0 27 90
J 22 32 54 15 15 7 37 91
K 15 49 64 10 17 0 27 91
L 54 9 63 26 6 0 32 95
M 29 40 69 12 29 1 42 111
N 42 55 97 13 7 2 22 119
O 21 56 77 6 36 5 47 124
P 31 26 57 6 8 55 69 126
Q 35 22 57 3 57 9 69 126
R 48 40 88 37 6 13 56 144
S Data not available 112 0 8 40 48 160
T Data not available 13 0 135 19 154 167
U 62 50 112 0 29 31 60 172
V 0 45 45 49 71 10 130 175
W 145 2 147 0 11 21 32 179
X 34 146 180 5 3 0 8 188
Y 29 89 118 0 61 15 76 194
Z 137 35 172 0 28 6 34 206
AA 28 64 92 0 116 15 131 223
A 21 56 77 4 136 14 154 231
CC 145 2 147 0 129 14 143 290
Median 30 35 63 3 15 10 37 124
Max 145 146 180 49 136 55 154 290
Min 0 0 13 0 0 0 5 53