The human gut bacteria Christensenellaceae are widespread, heritable, and associated with health

Table 3 Global associations of Christensenellaceae with a healthy body mass index

Country	Sample size of cohort	Age (mean ± std. dev.)*	Sex (% male/% female)	Reference
USA	154	15 (21-32)*^,a	0/100	[61]
USA	599	62.7 ± 7.7^b	54/46	[93]
USA	1673	40.2 ± 9.7^c	52/48 ^c	[60]
Mexico	138	9.9 ± 1.72^b	58/42	[94]
United Kingdom	977	60.6 ± 0.3	2/98	[21]
United Kingdom	2764^d	59.5 ± 12.3	11/89	[81]
Spain	39	14.8 (13-16)*	49/51	[95]
Netherlands	893	44.7 ± 12.9	43/57	[96]
Norway	384	48 (23-82)*	42/58	[97]
Norway	169	30 (27-34)*	0/100	[98]
Korea	655	47.0 ± 12.2	42/58	[66]
Korea	1274	45.7 ± 9.0	64/36	[99]
Japan	516	52.4 ± 13.4	37/63	[67]

* In these studies age is reported as median (range)
^a 49 participants are mothers of the twins, for which no age is reported
^b These values are reported for the healthy weight cohort, but is reflective of all study participants
^c Metadata were only reported for the American Gut Participants (n = 1375) as participant data for the Human Microbiome Project is restricted access
^d These values only pertain to the analysis in the TwinsUK cohort in this paper. Other studies were included, but Christensenellaceae was not reported

ISSN: 1741-7007