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Table 2 Inequality decomposition of the Erreygers’s concentration index for utilising of breast cancer screening services

From: Wealth stratified inequalities in service utilisation of breast cancer screening across the geographical regions: a pooled decomposition analysis

Variables Odds ratio (OR)
(95% CI)
Elasticity Erreygers’s concentration index (CI) Relative contribution to the Erreygers’s CI, (%)
African countries
 Age (year) 1.00 (0.98, 1.01) − 0.21 0.20 6.33
 Education (year) 0.95 (0.93, 0.96) 0.27 − 0.01 12.16
 Age at 1st birth (year) 0.97 (0.96, 0.98) − 0.68 0.85 5.09
 Number of births (n) 0.98 (0.96, 1.00) − 0.10 − 0.25 − 0.86
 Sex of household head (ref = male) 1.76 (1.63, 1.90) 0.73 − 0.26 5.63
 Mass media communication (ref = no) 2.34 (2.16, 2.54) 0.43 0.34 6.15
 Health insurance coverage (ref = no) 2.03 (1.86, 2.20) 0.09 0.24 −0.17
 Body mass index 0.96 (0.95, 0.96) −0.26 0.62 14.53
 Community (ref = rural) 0.91 (0.83, 0.99) 0.15 −0.68 8.83
 Wealth score 1.19 (1.15, 1.23) 0.50 0.67 23.34
Total     81.04
Asian countries
 Age (year) 0.93 (0.91, 0.96) −0.26 0.75 10.53
 Education (year) 1.18 (1.12, 1.23) 0.63 0.26 18.33
 Age at 1st birth (year) 1.03 (1.01, 1.05) 0.61 −0.09 −0.42
 Number of births (n) 1.20 (1.15, 1.26) 0.90 −0.88 6.52
 Sex of household head (ref = male) 1.51 (1.25, 1.83) 0.47 −0.02 9.06
 Mass media communication (ref = no) 1.08 (0.87, 1.35) 0.02 0.19 0.03
 Health insurance coverage (ref = no) 0.53 (0.43, 0.64) −0.15 −0.05 0.01
 Body mass index 1.02 (1.01, 1.03) 0.47 0.69 10.38
 Community (ref = rural) 0.73 (0.62, 0.86) −0.51 −0.31 6.26
 Wealth score 0.98 (0.91, 1.05) −0.06 0.87 25.27
Total     85.95
European countries
 Age (year) 1.03 (0.93, 1.13) 0.29 0.83 7.25
 Education (year) 0.90 (0.80, 1.02) −0.58 −0.92 14.85
 Age at 1st birth (year) 1.00 (0.92, 1.09) 0.01 0.68 −6.06
 Number of births (n) 0.88 (0.71, 1.09) −0.37 − 0.20 16.57
 Sex of household head (ref = male) 0.80 (0.16, 4.10) − 0.23 0.02 −4.04
 Mass media communication (ref = no) 0.55 (0.34, 0.90) − 0.29 0.21 − 0.49
 Health insurance coverage (ref = no) 1.94 (0.96, 3.93) 0.20 0.34 11.54
 Body mass index 1.01 (0.98, 1.04) 0.28 0.31 5.69
 Community (ref = rural) 1.18 (0.57, 2.47) 0.25 −0.90 −1.81
 Wealth score 1.58 (1.19, 2.09) 0.45 0.43 37.40
Total     80.92
North American countries
 Age (year) 1.08 (1.07, 1.10) 0.93 0.40 17.86
 Education (year) 1.04 (1.02, 1.06) 0.20 −0.03 13.05
 Age at 1st birth (year) 1.01 (1.00, 1.02) 0.34 0.21 −6.80
 Number of births (n) 0.95 (0.93, 0.98) −0.44 −0.15 12.07
 Sex of household head (ref = male) 1.01 (0.93, 1.10) 0.12 0.02 3.02
 Mass media communication (ref = no) 1.00 (0.91, 1.10) −0.08 0.46 −0.30
 Health insurance coverage (ref = no) 0.80 (0.73, 0.88) 0.01 0.16 14.01
 Body mass index 1.01 (1.01, 1.02) −0.06 0.26 −6.65
 Community (ref = rural) 0.90 (0.81, 0.99) 0.00 −0.30 4.69
 Wealth score 1.35 (1.3, 1.41) 0.03 0.65 35.83
Total     86.77
South American countries
 Age (year) 1.27 (1.23, 1.31) 0.53 0.12 16.46
 Education (year) 0.98 (0.93, 1.03) −0.09 0.39 −0.28
 Age at 1st birth (year) 0.99 (0.97, 1.01) −0.12 2.19 −2.10
 Number of births (n) 0.93 (0.86, 1.00) −0.25 −1.53 13.03
 Sex of household head (ref = male) 1.01 (0.77, 1.34) 0.02 −0.01 6.00
 Mass media communication (ref = no) 0.92 (0.72, 1.18) −0.06 0.18 −0.09
 Health insurance coverage (ref = no) 0.81 (0.73, 0.88) 0.01 0.16 16.01
 Body mass index 1.03 (1.01, 1.06) −0.06 0.26 −2.65
 Community (ref = rural) 1.31 (0.95, 1.81) 0.36 −0.62 −1.81
 Wealth score 1.36 (1.24, 1.49) 0.75 0.73 36.28
Total     80.85
Overall
 Age (year) 0.97 (0.96, 0.98) −0.27 0.36 13.34
 Education (year) 1.03 (1.02, 1.04) 0.29 0.33 0.67
 Age at 1st birth (year) 1.08 (1.08, 1.09) 1.02 0.32 5.59
 Number of birth (n) 1.14 (1.13, 1.15) 0.40 −0.71 −5.50
 Sex of household head (ref = male) 1.06 (1.02, 1.11) 0.58 −0.03 − 0.13
 Mass media communication (ref = no) 1.59 (1.53, 1.66) 0.14 0.13 0.15
 Health insurance coverage (ref = no) 0.99 (0.93, 1.07) 0.60 0.01 15.00
 Body mass index 1.02 (1.01, 1.02) 0.44 0.64 14.10
 Community (ref = rural) 0.59 (0.56, 0.61) −0.32 −0.46 1.19
 Wealth score 1.07 (1.05, 1.09) 0.21 0.10 35.12
Total     79.53