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Figure 5 | BMC Psychiatry

Figure 5

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 5

Mean TSH and prolactin level 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 TSH level: F(2,56) = 6.64, p = 0.003. Within OD group: F(3, 66) = 0.55, p = 0.652); within 2NS group: F(3, 57) = 9.97, p < 0.001 (1 < 2,1 < 3,1 < 4, 2 < 3, 2 < 4); within 4NS group: F(3, 54) = 30.77, p < 0.001 (1 < 2,1 < 3,1 < 4, 2 < 3, 2 < 4, 3 < 4). B) Between groups comparisons for prolactin level: F(2,56) = 6.31, p = 0.003. Within OD group: F(3, 66) = 3.33, p = 0.025 (1 > 3, 3 < 4); within 2NS group: F(3, 57) = 2.44, p = 0.073; within 4NS group: F(3, 45) = 8.68, p < 0.001 (1 < 4, 2 < 4, 3 < 4). 2NS, two consecutive night shifts; 4NS, four consecutive night shifts; OD, off-duty; TSH, thyrotropin.

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