Table 3 Concentration index for wealth and years of schooling for tobacco and cigarette smoking among women and men.

From: Tobacco consumption patterns among Iranian adults: a national and sub-national update from the STEPS survey 2021

Type of smoking

Concentration index

Wealth index

Years of schooling

Ever tobacco smoking

 Female

−0.043 (−0.06, −0.025)

−0.028 (−0.045, −0.011)

 Male

−0.069 (−0.076, −0.061)

−0.093 (−0.101, −0.086)

 Total

−0.04 (−0.047, −0.033)

−0.018 (−0.025, −0.011)

Ever cigarette smoking

 Female

−0.004 (−0.051, 0.043)

−0.007 (−0.054, 0.04)

 Male

−0.066 (−0.075, −0.058)

−0.12 (−0.128, −0.111)

 Total

−0.019 (−0.029, −0.01)

−0.021 (−0.03, −0.012)

Current tobacco smoking

 Female

−0.03 (−0.052, −0.008)

−0.016 (−0.038, 0.005)

 Male

−0.062 (−0.071, −0.053)

−0.084 (−0.093, −0.075)

 Total

−0.033 (−0.042, −0.024)

−0.016 (−0.024, −0.007)

Current cigarette smoking

 Female

−0.001 (−0.063, 0.061)

−0.002 (−0.065, 0.062)

 Male

−0.06 (−0.071, −0.05)

−0.095 (−0.105, −0.084)

 Total

−0.018 (−0.029, −0.007)

−0.015 (−0.025, −0.004)