Database

Search Terms and Formulas

Number of results

Search Date

PubMed

#1

COVID-19[MH]

172,767

2022.7.19

#2

Pregnant Women[MH]

12,492

#3

Depression[MH]

245,907

#4

#1 and #2 and #3

107

#5

(#4) and Abstract, English

100

CINAHL

#1

MH “COVID-19+”

34,313

2022.7.19

#2

MH “Expectant Mothers” or Pregnant Women

48,757

#3

MH “Depression+”

129,450

#4

#1 and #2 and #3

15

#5

(#4) and Abstract, English

13

MEDLINE

#1

MH “COVID-19”

168,669

2022.7.19

#2

MH “Pregnant Women”

12,380

#3

MH “Depression”

141,609

#4

#1 and #2 and #3

102

#5

(#4) and Abstract, English

94

CiNii

#1

COVID-19

23,673

2022.7.19

#2

Pregnant Women

11,087

#3

Depression

100,092

#4

#1 and #2 and #3

5

Japan Medical Abstract Society

#1

COVID-19/TH or COVID-19/AL

27,783

2022.7.19

#2

Pregnant Women/TH or Pregnant Women/AL

44,593

#3

Depression/TH

24,330

#4

#1 and #2 and #3

5

#5

(#4) and (AB=Y)

1