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Table 1 Characteristics of included studies

From: The mode of delivery affects the diversity and colonization pattern of the gut microbiota during the first year of infants' life: a systematic review

Author

County

Gestation period (Mean, wk)

Publication year

VD

CS

Period for sample collection

Microbial isolation and analysis techniques

[35]

Singapore

38.87

2015

57

18

3d, 3wk, 3Mo, and 6Mo

DNA extraction and 16S rRNA gene amplification

[36]

India

36

2013

73

10

1d, 2d, 4d, 7d, 14d, 28d, 90d, and 180d

DNA extraction and 16S rRNA gene sequencing

[27]

Sweden

–

2013

15

9

1wk, 1Mo, 3Mo, 6Mo, 12Mo and 24Mo

DNA extraction and 16S rRNA gene amplification

[34]

Greek

39.05

2008

34

48

4d, 30d and 90d

Culture-dependent and molecular methods.

[21]

Finland

39.35

2008

141

24

1Mo, 3Mo,6Mo, and 12 Mo

Fluorescence in situ hybridization of bacterial cells.

[20]

Finland

39.5

1999

34

30

3d,5d,10d,30d,60,180d

Cultured on nonselective and selective media

[26]

Sweden

–

2014

109

19

6d,3wk,2Mo,6Mo

DNA extraction and 16S rRNA gene sequencing

  1. d-day, wk-week, Mo-month