CRY1 and circadian rhythm sleep disorder: We noted that in release 6 of the FinnGen study there was a nominal association with ICD10 code G472 (circadian rhythm sleep disorders) for the CRY1 c.1657+3A>C variant (0.05% in controls vs. 0.29% in cases, P = 0.026), but this variant is 10-fold rarer in the Finnish population than in non-Finnish Europeans and is imputed with a quality score of only 0.76.