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Table 4 Summary results of the data extraction form for quality assessment

From: Screening and vaccination as determined by the Social Ecological Model and the Theory of Triadic Influence: a systematic review

Indicator Categorization Articles using SEM Articles using TTI
   Frequency Percenta Frequency Percenta
1. Clarity of CRQ(s)/hypothesis 0. Missing 10 25.0 6 13.0
1. Unclear 19 47.5 18 39.1
2. Clear 11 27.5 22 47.8
2. Clarity of data collection methods 0. Missing 10 25.0 5 10.9
1. Unclear 3 7.5 1 2.2
2. Clear 27 67.5 40 87.0
3. Clarity of sampling plan 0. Missing 17 42.5 17 37.0
1.Unclear 4 10.0 2 4.3
2. Clear 19 47.5 27 58.7
4. Clarity of sampling size 0. Missing 13 32.5 7 15.2
1. Unclear 3 7.5 8 17.4
2. Clear 24 60.0 31 67.4
5. Clarity of analysis method 0. Missing 17 42.5 8 17.4
1. Present 23 57.5 38 82.6
6. Clarity of conclusions 0. Missing - 0.0 - 0.0
1. Present 40 100.0 46 100.0
7. Clarity of limitations 0. Missing 16 40.0 8 17.4
1. Unclear 6 15.0 2 4.3
2. Clear 18 45.0 36 78.3
  1. aThe percentage is calculated over the total number of accepted studies, which are 40 for the SEM and 46 for the TTI