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Table 2 Crude data of sleep monitored by Actiwatch in anaesthesiologists (ANEST) and paediatricians and ENT-surgeons (PENT).

From: Sleep and recovery in physicians on night call: a longitudinal field study

  ANEST (n = 15)   PENT (n = 17)  
  Mean SD Mean SD
Day-time work     
   Sleep start 23:19 01:11 23:48 00:57
   Sleep end 06:02 00:24 06:38 00:35
   Total sleep time (hours and minutes) 06:01 1:04 06:06 0:46
   Sleep efficiency (%) 90 5 89 6
Night call     
   Sleep start 02:53 01:26 03:15 01:44
   Sleep end 06:44 00:54 07:39 00:40
   Total sleep time (hours and minutes) 02:22 01:48 03:42 01:36
   Sleep efficiency (%) 89 10 85 8
1 st post-call night     
   Sleep start 23:35 01:12 23:29 01:35
   Sleep end 06:35 00:38 07:52 01:28
   Total sleep time (hours and minutes) 06:15 01:01 07:37 01:50
   Sleep efficiency (%) 90 4 91 4
2 nd post-call night     
   Sleep start 00:10 01:27 00:18 01:25
   Sleep end 07:06 01:09 07:56 01:09
   Total sleep time (hours and minutes) 06:16 01:19 06:55 01:08
   Sleep efficiency (%) 91 3 91 4
Saturday (off duty)     
   Sleep start 23:42 00:44 00:53 01:18
   Sleep end 07:28 01:00 08:35 01:25
   Total sleep time (hours and minutes) 06:48 00:46 06.56 00:54
   Sleep efficiency (%) 88 5 90 4
  ANEST (n = 14)   PENT (n = 8)  
  Mean SD Mean SD
Day-time nap post-call     
   Sleep start 11:53 01:52 13:51 03:35
   Sleep end 14:47 02:24 15:54 03:29
   Total sleep time (hours and minutes) 2:52 01:27 01:50 01:17
   Sleep efficiency (%) 91 4 91 4