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Table 1 Waiting and interaction times in hours and minutes in priority 1

From: A time and motion study of patients presenting at the accident and emergency department at Mater Dei Hospital

  NUMBER MEAN MEDIAN IQR RANGE
  T1 T2 T3 T4 T1 T2 T3 T4 T1 T2 T3 T4 T1 T2 T3 T4 T1 T2 T3 T4
Wait To Enter Triage 31 66 68 58 0:07 0:07 0:07 0:12 0:03 0:05 0:05 0:09 0:10 0:10 0:08 0:13 00:00-00:44 00:00-00:40 00:00-00:24 00:00-01:06
Triage Time Taken 33 70 73 61 0:03 0:04 0:04 0:04 0:03 0:04 0:03 0:04 0:03 0:05 0:04 0:03 00:00-00:10 00:00-00:17 00:00-00:19 00:00-00:12
Wait To Enter Area 26 49 56 48 0:27 0:13 0:19 0:25 0:03 0:03 0:02 0:03 0:27 0:06 0:08 0:42 00:00-02:40 00:00-02:29 00:00-04:24 00:00-02:08
Wait From Registration To First Assessment 31 91 83 63 0:53 0:33 0:55 1:17 0:41 0:21 0:36 1:01 1:09 0:25 0:54 1:44 00:00-02:35 00:00-02:45 00:00-03:26 00:04-04:28
Wait To Be Seen By Nurse 1 34 74 59 38 0:45 0:30 0:23 0:47 0:27 0:04 0:06 0:17 0:58 0:59 0:27 0:30 00:00-03:53 00:00-04:52 00:00-03:30 00:00-04:47
Total Interaction Time Nurse 29 71 53 32 0:42 0:38 1:08 1:18 0:22 0:18 0:15 0:28 1:22 0:56 0:55 1:27 00:01-03:23 00:01-03:06 00:01-07:15 00:01-13:20
Wait To Be Seen By CO 1 45 77 110 74 0:26 0:16 0:41 0:50 0:09 0:10 0:19 0:22 0:46 0:29 0:24 0:55 00:00-02:47 00:00-01:37 00:00-03:30 00:00-00:40
Total Interaction Time CO 45 121 103 68 0:21 0:26 0:23 0:21 0:17 0:21 0:18 0:17 0:24 0:22 0:22 0:21 00:03-00:59 00:01-01:46 00:01-01:55 00:01-01:08
Time First Seen To Time Last Seen By CO 45 121 106 67 1:19 1:28 1:17 1:16 0:57 1:10 0:48 0:28 1:38 1:15 1:38 1:29 00:01-10:20 00:01-08:56 00:01-08:15 00:01-10:33
Wait For Senior Review 12 34 22 9 0:49 1:05 1:32 1:34 0:40 0:47 1:26 0:39 1:34 0:26 1:09 1:23 00:05-01:46 00:00-03:38 00:00-04:57 00:14-04:57
Total Time X-ray Taken 26 95 78 44 0:14 0:18 0:20 0:16 0:13 0:13 0:17 0:11 0:14 0:15 0:19 0:09 00:03-00:44 00:03-01:28 00:04-01:05 00:04-01:20
Total Time CT Taken 1 9 6 7 0:15 0:18 0:18 0:15 0:15 0:14 0:10 0:18 - 0:17 0:15 0:21 00:03-01:28 00:05-00:42 00:06-01:02 00:08-00:26
Total Time US Taken 2 5 11 3 0:11 0:19 0:27 0:08 0:11 0:21 0:16 0:08 - 0:22 0:19 - 00:09-00:13 00:14-00:26 00:07-01:17 00:08-00:09
Total Treatment Time 11 19 20 15 0:45 0:46 0:55 0:31 0:14 0:18 0:30 0:09 0:41 1:04 1:01 0:47 00:02-02:25 00:03-00:19 00:06-03:36 00:01-02:41
Wait To Leave ED After Admission 22 17 44 22 0:44 0:45 0:23 0:25 0:24 0:36 0:12 0:08 0:30 1:07 1:07 0:35 00:00-03:08 00:00-02:38 00:00-01:49 00:00-03:33
Wait To Leave ED After Discharge 18 12 23 26 0:02 0:06 0:02 0:07 0:00 0:00 0:00 0:00 0:10 0:01 0:04 0:19 00:00-00:26 00:00-00:46 00:00-00:32 00:00-01:01
Total Time In Area 40 106 82 55 2:47 3:53 3:40 2:57 2:42 3:10 3:27 2:57 2:16 2:05 2:45 3:17 00:10-05:56 00:04-16:45 00:14-11:26 00:14-07:34
Total Time In ED 29 30 64 45 3:07 4:52 4:02 3:22 2:51 4:17 3:49 2:59 2:40 2:42 2:36 3:25 01:05-05:56 00:17-11:58 00:31-11:26 01:15-07:57
  1. C.O., Casualty Officer; CT, Computed Tomography; US, Ultrasound; ED, Emergency Department; SD, Standard Deviation;; IQR, Inter Quartile Range; T1, 0200-0800; T2, 0800-1400; T3, 1400-2000; T4, 2000-0200