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Table 3 Variation between wake-up and bed time in weekdays and weekends between excellent and average groups

From: Good sleep quality is associated with better academic performance among Sudanese medical students

Variable Excellent (Mean ± SD) Average (Mean ± SD) F Sig
Bed time
 Weekdays 11.54 pm ± 1.54 h 1.12 am ± 1.42 h 15.628 0.000
 Weekend 12.54 am ± 3.36 h 2.48 am ± 2.12 h 14.271 0.000
 Bedtime delay during weekenda 1.2 ± 1.8 1.6 ± 1.7 1.441 0.232
Wake-up time
 Weekdays 6.54 am ± 1.48 h 7.18 am ± 2.12 h 1.592 0.209
 Weekend 8.24 am ± 2.54 h 10.48 am ± 3.33 h 19.711 0.000
 Wake up time delay during weekend 2.1 ± 2.0 3.8 ± 2.2 25.031 0.000
  1. aBedtime during weekend-bedtime during weekday