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. 2025 Feb 19;24:49. doi: 10.1186/s12939-025-02403-8

Table 2.

Relative Index of Inequality (RII) and Slope Index of Inequality (SII) of AHS use for male and female students aged 14-18 according to maternal, paternal and parental educational level by sexa,b

Male Female
Maternal Educational Level
RII (IC95%) SII (IC95%) RII (IC95%) SII (IC95%)
2021 1.06 (0.83-1.36) 0.72 (-1.67-3.11) 1.37 (1.16-1.62) 5.50 (2.53-8.48)
2018 1.04 (0.87-1.26) 0.39 (-1.48-2.26) 1.20 (1.04-1.39) 2.88 (0.86-4.90)
2016 1.23 (0.99-1.52) 2.12 (0.26-3.99) 1.18 (1.02-1.37) 2.55 (0.26-4.84)
2014 0.89 (0.71-1.11) -1.07 (-2.71-0.57) 1.00 (0.87-1.16) 0.36 (-1.70-2.41)
2012 0.92 (0.74-1.15) -0.54 (-2.41-1.33) 0.87 (0.75-1.02) -1.86 (-4.18-0.46)
2010 0.72 (0.57-0.92) -2.30 (-4.04 - -0.55) 0.81 (0.68-0.96) -2.18 (-4.33- -0.03)
Paternal Educational Level
RII (IC95%) SII (IC95%) RII (IC95%) SII (IC95%)
2021 1.14 (0.89-1.46) 1.53 (-0.85-3.90) 1.21 (1.02-1.45) 3.49 (0.42-6.56)
2018 0.99 (0.82-1.19) -0.27 (-2.19-1.65) 1.16 (1.00-1.34) 2.04 (-0.09-4.17)
2016 1.21 (0.97-1.52) 1.71 (-0.14-3.56) 1.16 (0.99-1.36) 2.20 (-0.22-4.61)
2014 0.91 (0.72-1.14) -0.75 (-2.41-0.90) 1.07 (0.91-1.25) 1.22 (-0.87-3.31)
2012 0.91 (0.72-1.14) -0.70 (-2.65-1.24) 0.99 (0.84-1.17) 0.03 (-2.43-2.49)
2010 0.79 (0.61-1.02) -1.54 (-3.29-0.21) 0.99 (0.83-1.19) -0.17 (-2.38-2.03)
Parental Educational Level
RII (IC95%) SII (IC95%) RII (IC95%) SII (IC95%)
2021 1.08 (0.85-1.37) 1.05 (-1.31-3.41) 1.29 (1.09-1.53) 4.38 (1.44-7.32)
2018 0.96 (0.80-1.15) -0.50 (-2.39-1.39) 1.18 (1.02-1.36) 2.40 (0.37-4.42)
2016 1.26 (1.01-1.58) 2.09 (0.23-3.95) 1.16 (0.99-1.35) 2.21 (-0.21-4.63)
2014 0.86 (0.69-1.08) -1.10 (-2.75-0.54) 1.05 (0.90-1.23) 1.21 (-0.89-3.31)
2012 0.93 (0.74-1.17) -0.53 (-2.46-1.40) 0.98 (0.83-1.15) -0.24 (-2.63-2.16)
2010 0.67 (0.52-0.85) -2.96 (-4.74- -1.18) 0.82 (0.69-0.98) -2.11 (-4.34-0.12)

aModels adjusted by age

bValues in bold are significant