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Table 1 Comparison of knowledge scores between group A and group B and within group A

From: Increasing girls’ knowledge about human papillomavirus vaccination with a pre-test and a national leaflet: a quasi-experimental study

No. Statement Pre-test group A vs. post-test group B Post-test group A vs. post-test group B Group A: ‘almost correct’ at pre-test to ‘absolutely correct’ at post-test
   p-value n (%)
1 HPV vaccinations completely protect against cervical cancer (false). 0.0031a 0.169 9 (7.6)
2 Even if you only have safe sex you can be infected with HPV (true). 0.0011a 0.079 32 (26.9)
3 All 12-year-old girls will be sent an invitation for HPV vaccinations without having to ask for it (true). 0.851 0.0072 18 (15.1)
4 Legally, parents need to give permission for HPV vaccinations in 12-year-olds (false). <0.0011a 0.054 8 (6.7)
5 In spite of HPV vaccinations, Pap-smears from age ≥ 30 years are still recommended (true). <0.0011a <0.0012 62 (52.1)
6 You can only have a Pap smear if you have first had HPV vaccinations (false). 0.148 0.0032 16 (13.4)
7 HPV vaccinations can make you lose your hair (false). <0.0011a 0.0132 40 (33.6)
8 If you have been sexually active HPV vaccinations are still advised (true). 0.265 0.0022 37 (31.1)
9 HPV vaccinations reduce the risk of getting cervical cancer (true). 0.0061b <0.0012 18 (15.1)
10 We know for a fact that HPV vaccinations protect against cervical cancer for a lifetime (false). 0.175 0.319 18 (15.1)
11 HPV vaccinations reduce the risk of dying of cervical cancer (true). 0.456 <0.0012 26 (21.8)
12 HPV vaccinations require several hundred dollars out-of-pocket expenses (false). 0.131 0.999 21 (17.6)
  1. 1aPercentage of correct answers in the post-test measurement in group B was significantly higher compared to the pre-test measurement in group A.
  2. 1bPercentage of correct answers in the post-test measurement in group B was significantly lower compared to the pre-test measurement in group A.
  3. 2Percentage of correct answers in the post-test measurement in group A was significantly higher compared to the post-test measurement in group B.