. Author manuscript; available in PMC: 2023 Aug 14.

Published in final edited form as: Lancet Microbe. 2021 May 10;2(7):e331–e341. doi: 10.1016/S2666-5247(21)00031-8

Table 1. Median effective population size of CC131 clades.

Total cases were estimated for each CC131 clade by adjusting the number of genomes of a clade by the proportion of total 2017 cases that were sequenced, before calculating incidence per million population in Norway in 2017. tMRCA Time to most recent common ancestor. HPD 95% Highest Posterior Density.

Clade	popSize 2017 [95% HPD]	Exponential time period	Growth rate [95% HPD]	Estimated incidence per million population 2017*	popSize/Incidence ratio 2017	tMRCA [95% HPD]
A	5488 [1365-19872]	2004.6-2005.3	3147 [2909-3385]	21.30	0.004	1997 [1968-1983]
B	3341 [1058-8812]	1989.8-1993.9	650 [608-692]	23.67	0.007	1926 [1884-1965]
C1	1123 [314-3284]	2002.8-2005.8	131 [126-137]	26.03	0.023	1993 [1988-1997]
C2	889 [297-2382]	2004.7-2006.7	345 [326-364]	16.57	0.019	1992 [1985-1997]