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Figure 4 | BMC Psychiatry

Figure 4

From: Rotating night shifts too quickly may cause anxiety and decreased attentional performance, and impact prolactin levels during the subsequent day: a case control study

Figure 4

DSST, SST, and IPI scoring scale as a function of time of day. Mean ± standard deviation of the mean for OD, 2NS, and 4NS groups for each time. A) Between groups comparisons for DSST scoring scale: F(2,56) = 4.72, p = 0.013. Within OD group: F(3, 66) = 10.11, p < 0.001 (1 < 3, 1 < 4, 2 < 4, 3 < 4); within 2NS group: F(3, 57) = 2.96, p = 0.040 (1 < 2, 1 < 3); within 4NS group: F(3,45) = 5.63, p = 0.002 (1 < 2, 1 < 3, 1 < 4). B) Between groups comparisons for SST scoring scale: F(2, 56) = 6.28, p = 0.003. Within OD group: F(3, 66) = 8.85, p < 0.001 (1 < 2, 1 < 3, 1 < 4, 2 < 4, 3 < 4); within 2NS group: F(3, 57) = 4.52, p = 0.007 (1 < 3, 1 < 4); within 4NS group: F(3, 45) = 4.23, p = 0.010 (1 < 2, 1 < 4, 3 < 4). C) Between groups comparisons for IPI scoring scale: F(2, 56) = 7.21, p = 0.002. Within OD group: F(3, 66) = 15.11, p < 0.001 (1 < 2, 1 < 3, 1 < 4, 2 < 4, 3 < 4); within 2NS group: F(3, 57) = 6.26, p < 0.001 (1 < 3, 1 < 4); within 4NS group: F(3,45) = 7.25, p < 0.001 (1 < 2, 1 < 4, 2 < 4, 3 < 4). DSST, Digit Symbol Substitution Test; SST, Symbol Searching Test; IPI, information process index; 2NS, two consecutive night shifts; 4NS, four consecutive night shifts; OD, off-duty.

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