Table 3.

Bayesian joint model analysis estimating the association between the change in stool pH, gut microbiota diversity, and mortality at day 60

	Estimate (95% credible interval)	p-value
Time-to-event
pH (Hazard ratio)	1.07 (0.40 to 2.26)	0.796
Time-varying pH
(Intercept)	6.50 (6.17 to 6.77)	–
Change in pH per day	0.02 (−0.05 to 0.09)	0.554
Change in pH per day * change in Shannon index	0.00 (−0.02 to 0.02)	0.939

Sample size = 96; Number of longitudinal observations = 190; Number of events = 24 (25%)

p-value represent the tail probabilities of containing the zero-effect value