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Table 4 Alpha diversity results

From: Use of dietary indices to control for diet in human gut microbiota studies

Diversity measure

HEI

MDS

HFD-Index

Chao1

−0.01

> 0.00

− 0.05**

OTUs

0.06**

0.05*

− 0.05*

Shannon

0.1***

0.07***

− 0.01

Simpson

0.06**

0.05*

− 0.01

  1. Standardised coefficients of linear mixed-effects models of three dietary indices, the Healthy Eating Index (HEI), Mediterranean Diet Score (MDS) and the Healthy Food Diversity index (HFD-index), against four measures of alpha diversity (Chao1, Observed number of OTUs (OTUS), Shannon diversity and Simpson’s diversity index). Alpha diversity measures were rarefied and adjusted for BMI, sex, age and technical covariates (see the “Methods” section). p values: *p < 0.05, **p < 0.01, ***p < 0.001,  = non-significant