Table 1 Selected feasibility aspects of nasal and oropharyngeal swabbing.

From: Determination of nasal and oropharyngeal microbiomes in a multicenter population-based study – findings from Pretest 1 of the German National Cohort

Column 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

 

Nasal swabs collected by study personnel at the study center

Oropharyngeal swabs collected by study personnel at the study center

Nasal swabs collected by study participants at home

Study centers

Sample size n

No. of partici-pants from whom swabs were collected n

Time needed for swabbing in minutes median (range)

Difficul-ties when collecting the swab % of “No” responses

Swabs from both nares were taken % of “Yes” responses

Swabs that had to be discarded % of „None“ responses

Sample size n

No. of partici-pants from whom swabs were collected n (%)

No. of partici-pants who refused oropha-ryngeal swabbing n (%)

Time needed for swabbing in minutes median (range)

Difficul-ties when collecting the swab % of “Yes” responses (n/N)

No. of partici-pants to whom swabs were sent n

No. of partici-pants from whom swabs were received n (%)

Time from mailing of the swab kit to swabbing (days) Median (range)

Time from swabbing to swab receipt in the lab (days) Median (range)

Augsburg

100

100

1 (<1–6)

100

100

100

Bremen

96

95

3 (1–10)

98

100

100

95

81 (85)

14 (15)

2 (<1–5)

68 (54/79)

94

83 (88)

8 (2–63)

1 (1–13)

Essen

75

75

3 (<1–7)

95

100

100

75

73 (97)

2 (2.7)

2 (1–4)

42 (29/69)

Freiburg

97

96

2 (1–5)

98

98

100

98

69 (70)

11 (4–44)

1 (1–30)

Hamburg

100

100

2 (<1–5)

98

99

100

100

99 (99)

1 (1.0)

1 (<1–12)

53 (52/99)

100

75 (75)

8 (2–66)

2 (1–30)

Heidelberg

56

56

2 (<1–5)

100

100

98

56

56 (100)

0 (0)

1 (<1–6)

36 (20/56)