Authors

Sample type

Sample size

Normal tissue samples

Storage temperature

Yao and Lin, 2012 [34]

Tumour/lesion tissue

126

Adjacent samples collected 1 cm away from tumour/lesion tissue

-

Xie et al., 2012 [20]

Snap-frozen tissue

30

-

−80˚C

Wang et al., 2014 [35]

Cervical biopsy

-

-

−70˚C

Zhang et.al., 2013 [21]

Snap-frozen tissue

92

-

-

Wen et al., 2017 [22]

Snap-Frozen tissue

40

Healthy controls

−80˚C

Han et al., 2015 [17]

Tumour/lesion tissue

30

Adjacent samples collected 5 cm away from tumour/lesion tissue

−80˚C

Cheung et al., 2012 [36]

Tumour/lesion tissue embedded in OCT compound

48

Healthy controls

−80˚C

Jiminez-Wences et al., 2016 [37]

Biopsy samples

49

-

-

Villegas-Ruiz et al., 2014 [25]

Biopsy samples (one part in RNA later the other embedded in paraffin wax—FFPE)

45

-

−70˚C (RNA later samples)

Gozce et al., 2015 [26]

Tumour/lesion tissue—FFPE

98

-

n.a.

Deftereos et al., 2011 [27]

Tumour/lesion tissue—FFPE

104

23 healthy controls

n.a.

Bumrungthai et al., 2016 [28]

Fresh tumour/lesion tissue and FFPE samples

79

no

-

Shishodia et.al., 2015 [38]

Tumour/lesion tissue samples in 1X PBS

102

23 healthy controls

-

Zeng et al., 2015 [29]

Lesion tissues—FFPE

103

13 normal tissues

-

Zheng et al., 2015 [30]

FFPE cervical tissue samples

140

15 normal tissue samples

-

Li et al., 2011 [22]

Snap-frozen tissue samples

125

20 normal

−70˚C

Bierkens et al., 2012 [31]

FFPE samples

75

6 frozen HPV+ normal samples

-

Chen et al., 2013 [39]

Tumour/lesion tissue and matched serum samples

-

-

−80˚C

Ma et al., 2014 [40]

Tumour/lesion tissue and matched serum samples

60

6 healthy controls

−80˚C

Zhang et al., 2016 [45]

Whole blood samples—serum

89

20 healthy controls

-

Ye et al., 2019 [48]

Exfoliated cells

177

-

-

Ribeiro et al., 2015 [49]

Exfoliated cells

65

49 healthy controls

Room temperature

Malta et al., 2019 [50]

Exfoliated cells

73

38 normal controls

-

Hou et al., 2014 [44]

Fresh tissue samples

10

10 normal controls

-

Huang et al., 2016 [24]

Snap-frozen tissue samples

126

64 normal controls

−80˚C

Ma et al., 2015 [32]

FFPE samples

412

208 cervicitis cases used as controls

-

Zhang et al., 2017 [41]

Fresh tissue samples

105

-

-

Kawai et al., 2017 [51]

Exfoliated cells from cervical mucus

230 (total number including normal samples)

N/A

−80˚C

Lukic et al., 2018 [33]

FFPE samples

40

10

-

Shen et al., 2013 [52]

Fresh tissue samples frozen in liquid nitrogen

126

126 (adjacent healthy samples)

-

Luo et al., 2015 [53]

Fresh tissue samples frozen in liquid nitrogen

88

88 (adjacent healthy tissues)

−70˚C

Jiang et al., 2017 [46]

Serum samples

182

12

−80˚C

Leitao et al., 2014 [42]

Biopsy samples stored in RNAlater

46

19

−80˚C

Babion et al., 2018 [43]

Frozen fresh cervical tissue samples cervical scrape samples in ThinPrep Medium

51

187

8

-

−80˚C

Wei et al., 2017 [18]

Plasma samples

120

120

−80˚C

Zhang et al., 2019 [54]

Fresh tissue samples frozen in liquid nitrogen

67

20

-

Xin et al., 2016 [47]

Serum samples

126

60

−80˚C