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Fig. 4 | BMC Pregnancy and Childbirth

Fig. 4

From: Long-term significant seasonal differences in the numbers of new-borns with an orofacial cleft in the Czech Republic – a retrospective study

Fig. 4

The mean daily number of new-born boys in each month. The mean daily number (MDN) in the percent of new-born boys with an orofacial cleft (solid line) is compared with the control group of boys (dashed line). a The boys with cleft lip and jaw (CL). b. The boys with cleft lip and palate (CLP). c The boys with cleft palate (CP). Axis x: Roman digit - month of delivery, Arabic numeral - month of conception. Asterisk (*) shows the position of a peak (A) or decline (C), corresponding to a statistically significant increase (p < 0.03) in the total monthly number of new-born boys with CL for 37 years (A) or to a significant decrease (p < 0.02) detected by Fisher’s exact test [31] in the total monthly number of new-born boys with CP (C), respectively

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