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Table 3 Benefits and harms of the HPV vaccines: characteristics of included participants

From: Benefits and harms of the human papillomavirus (HPV) vaccines: systematic review with meta-analyses of trial data from clinical study reports

Characteristics of included participantsa

Total

HPV vaccine

Comparator

HPV vaccine

(N = 47,075)

Comparator

(N = 48,595)

Cervarix

(N = 31,316)

Gardasil

(N = 13,937)

Gardasil 9

(N = 618)

HPV 16 vaccine

(N = 1204)

Placebo

(N = 306)

Adjuvantb

(N = 18,789)

Hepatitis vaccinec

(N = 29,500)

Participation

 Randomised

47,075

48,595

31,316

13,937

618

1204

306

18,789

29,500

  Received one (1) dose

47,012 (99%)

48,556 (99%)

31,291 (99%)

13,927 (99%)

615 (99%)

1193 (99%)

306 (100%)

18,750 (99%)

29,500 (100%)

  Received two (2) doses

46,105 (98%)

47,725 (98%)

30,788 (98%)

13,564 (97%)

604 (98%)

1092 (91%)

304 (99%)

18,304 (97%)

29,117 (99%)

  Received three (3) doses

45,079 (96%)

46,726 (96%)

30,073 (96%)

13,286 (95%)

597 (97%)

1019 (85%)

300 (98%)

17,906 (96%)

28,520 (97%)

  Completed vaccination period

44,202 (94%)

45,862 (94%)

29,331 (94%)

13,156 (94%)

595 (97%)

993 (82%)

300 (98%)

17,809 (95%)

27,753 (94%)

  Entered follow-up period

18,540 (39%)

18,059 (37%)

4090 (14%)

13,344 (96%)

Not applicable

1126 (94%)

Not applicable

17,590 (94%)

469 (2%)

  Completed follow-up period

15,826 (34%)

14,601 (30%)

2929 (10%)

11,986 (86%)

Not applicable

835 (69%)

Not applicable

14,445 (77%)

156 (1%)

Gender

 Female

42,036 (89%)

37,066 (76%)

28,876 (92%)

11,338 (81%)

618 (100%)

1204 (100%)

306 (100%)

16,481 (88%)

20,279 (69%)

Age

 Mean age in years

20.3

20.2

21.2

21.4

19.0

20.0

19.0

22.9

20.5

 Age group range in years

9–72

8–68

9–72

9–45

12–26

16–25

12–26

9–68

8–46

Race

 Asian

7589 (16%)

7295 (15%)

6232 (20%)

1248 (9%)

40 (6%)

69 (6%)

14 (5%)

2678 (14%)

4603 (16%)

 Black

1426 (3%)

1492 (3%)

467 (2%)

862 (6%)

3 (1%)

94 (8%)

3 (1%)

1108 (6%)

381 (1%)

 Hispanic

4492 (10%)

4378 (9%)

1787 (6%)

2616 (19%)

0 (0%)

89 (7%)

0 (0%)

3403 (18%)

975 (3%)

 White

31,743 (67%)

33,558 (69%)

22,335 (70%)

7998 (56%)

483 (78%)

918 (76%)

231 (75%)

9960 (53%)

23,367 (79%)

 Other

1625 (3%)

1576 (3%)

297 (1%)

1202 (9%)

92 (15%)

34 (3%)

58 (19%)

1343 (7%)

174 (1%)

 Unknown

209 (1%)

296 (1%)

198 (1%)

11 (1%)

0 (0%)

0 (0%)

0 (0%)

297 (2%)

0 (0%)

  1. aSee Additional file 2 for details on the characteristics of included participants. Table 3 does not include data from the two follow-up studies HPV-023 (follow-up for trial HPV-001) of 433 participants and HPV-063 (follow-up for trial HPV-032) of 752 participants
  2. bAdjuvant comparators included amorphous aluminium hydroxyphosphate sulphate (AAHS), aluminium hydroxide (Al[OH]3) and Gardasil’s carrier solution (yeast protein, sodium chloride, L-histidine, polysorbate 80 and sodium borate)
  3. cHepatitis vaccines included Aimmugen™ (hepatitis A vaccine), Engerix-B™ (hepatitis B vaccine), Havrix™ (hepatitis A vaccine) and Twinrix Paediatric™ (hepatitis A and B vaccine); see Additional file 2