Table 1 Linear mixed effects models to test for the effects of antibiotic use, age, and time points on alpha diversity. (a) The effects of antibiotic use on species richness (Observed), (b) on biodiversity (Shannon index).

From: Moderate and transient impact of antibiotic use on the gut microbiota in a rural Vietnamese cohort

Variable

Value

b (95% CI)

Standard error b

p-value

a

    

Age (in years)

Age (in years)

0.086 (−0.425, 0.597)

0.256

0.739

Timepoint

months

0.877 (−0.786, 2.539)

0.845

0.3

Antibiotics use

0–2 weeks

−31.344 (−55.372, −7.316)

12.213

0.011

2–4 weeks

−1.333 (−34.442, 31.775)

16.828

0.937

blaNDM positive

Yes

10.233 (−2.744, 23.211)

6.597

0.122

blaCTX-M positive

Yes

−4.509 (−10.607, 1.590)

3.1

0.147

Timepoint*[Antibiotics use]

Timepoint*[0–2 weeks]

5.641 (0.184, 11.098)

2.774

0.043

 

Timepoint*[2–4 weeks]

−2.102 (−11.163, 6.958)

4.605

0.648

b

Age (in years)

Age (in years)

0.003 (−0.004, 0.009)

0.003

0.448

Timepoint

Months

0.029 (0.002, 0.056)

0.014

0.036

Antibiotics use

0–2 weeks

−0.298 (−0.686, 0.090)

0.197

0.132

2–4 weeks

0.160 (−0.374, 0.694)

0.271

0.555

blaNDM positive

Yes

0.153 (−0.056, 0.362)

0.106

0.15

blaCTX-M positive

Yes

−0.043 (−0.142, 0.055)

0.05

0.386

Timepoint*[Antibiotics use]

Timepoint*[0–2 weeks]

0.036 (−0.053, 0.124)

0.045

0.428

Timepoint*[2–4 weeks]

−0.081 (−0.228, 0.065)

0.074

0.274