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Table 3 Numbers of articles and paragraphs over the time periods

From: Newspaper coverage before and after the HPV vaccination crisis began in Japan: a text mining analysis

Time period

Number of paragraphs

Number of articles

2009.7–9

32

6

 10–12

108

11

2010.1–3

244

28

 4–6

607

91

 7–9

567

93

 10–12

764

115

2011.1–3

374

89

 4–6

68

8

 7–9

39

7

 10–12

25

10

2012.1–3

13

4

 4–6

52

11

 7–9

139

14

 10–12

15

4

2013.1–3

66

11

 4–6

644

83

 7–9

398

44

 10–12

280

50

2014.1–3

236

31

 4–6

121

18

 7–9

298

32

 10–12

131

23

2015.1–3

193

26

 4–6

241

29

 7–9

486

69

 10–12

442

81

2016.1–3

207

24

 4–6

178

30

 7–9

569

59

 10–12

248

38

2017.1–3

145

16

 4–6

118

15

 7–9

43

8

Total

8091

1178

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