Fig. 1: Distribution of time of blood draw for cases and controls during a typical working day (07:00–19:00). | Translational Psychiatry

Fig. 1: Distribution of time of blood draw for cases and controls during a typical working day (07:00–19:00).

From: Differences in white blood cell proportions between schizophrenia cases and controls are influenced by medication and variations in time of day

Fig. 1

SCZ cases (seen in blue) have recorded blood draws between 07:00 and 14:00 while controls (seen in green) have recorded blood draws between 07:00 and 19:00. This distribution suggests the potential bias that may occur when time of blood draw is not matched between cases and control.

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