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Table 2 Socioeconomic inequalities and women’s preference in outreach screening in different periods analyzed by multivariate logistic regression after adjusting the baseline variables

From: Socioeconomic inequalities in uptake of outreach mammography before and after accessibility improvement of Taiwan’s national universal breast cancer screening policy

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2005–2009

2010–2014

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aOR

95% CI

P-value

aOR

95% CI

P-value

Age categories

ÌýÌýÌýÌýÌýÌý

50–54 years (Ref)

ÌýÌýÌýÌýÌýÌý

55–59 years

0.901

(0.877, 0.927)

&±ô³Ù; 0.001

1.070

(1.058, 1.082)

&±ô³Ù; 0.001

60–64 years

0.845

(0.816, 0.875)

&±ô³Ù; 0.001

1.103

(1.089, 1.117)

&±ô³Ù; 0.001

65–69 years

0.934

(0.899, 0.970)

&±ô³Ù; 0.001

1.029

(1.013, 1.045)

&±ô³Ù; 0.001

SII*

0.038

(0.011, 0.065)

Ìý

-0.032

(-0.044, -0.018)

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RII**

1.030

(1.008, 1.057)

Ìý

0.960

(0.932, 0.989)

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Education

ÌýÌýÌýÌýÌýÌý

No education (Ref)

ÌýÌýÌýÌýÌýÌý

Elementary school

1.152

(1.109, 1.197)

&±ô³Ù; 0.001

0.983

(0.968, 0.999)

0.039

Junior high school

1.030

(0.985, 1.077)

0.192

0.957

(0.941, 0.974)

&±ô³Ù; 0.001

Senior high school

0.681

(0.652, 0.712)

&±ô³Ù; 0.001

0.799

(0.786, 0.812)

&±ô³Ù; 0.001

University and above

0.462

(0.434, 0.491)

&±ô³Ù; 0.001

0.494

(0.484, 0.503)

&±ô³Ù; 0.001

SII

-0.592

(-0.773, -0.409)

Ìý

-0.173

(-0.269, -0.014)

Ìý

RII

0.392

(0.211, 0.539)

Ìý

0.804

(0.677, 0.938)

Ìý

Income level

ÌýÌýÌýÌýÌýÌý

Dependent (Ref)

ÌýÌýÌýÌýÌýÌý

Less than NTD 20,000

0.867

(0.835, 0.901)

&±ô³Ù; 0.001

0.955

(0.944, 0.966)

&±ô³Ù; 0.001

NTD 20,000- NTD 40,000

0.976

(0.950, 1.002)

0.072

1.058

(1.048, 1.068)

&±ô³Ù; 0.001

NTD 40,000+

0.962

(0.925, 1.000)

0.053

0.973

(0.961, 0.985)

&±ô³Ù; 0.001

SII

0.110

(-0.315, 0.588)

Ìý

0.027

(0.011, 0.038)

Ìý

RII

1.108

(0.869, 1.305)

Ìý

1.013

(1.002, 1.016)

Ìý

Urbanization level

ÌýÌýÌýÌýÌýÌý

Urban (Ref)

ÌýÌýÌýÌýÌýÌý

Suburban

0.935

(0.912, 0.959)

&±ô³Ù; 0.001

1.531

(1.519, 1.543)

&±ô³Ù; 0.001

Rural

0.929

(0.912, 0.947)

&±ô³Ù; 0.001

1.509

(1.488, 1.530)

&±ô³Ù; 0.001

SII

-0.006

(-0.318, 0.294)

Ìý

-0.012

(-0.411, 0.460)

Ìý

RII

0.987

(0.891, 0.994)

Ìý

0.980

(0.973, 0.991)

Ìý
  1. Note: aOR, adjusted odds ratio; Ref., reference group; SII slope index of inequality; RII, relative index of inequality; NTD, New Taiwanese Dollar
  2. *SII (slope index of inequality) represents an absolute difference in women’s participation in outreach screening between the highest and lowest socioeconomic groups. An SII value of zero indicates no difference between the socioeconomic groups. A positive SII value indicates larger inequality but a negative SII value means less inequality
  3. **RII (relative index of inequality) represents a relative difference in women’s participation in outreach screening between the best and worst socioeconomic conditions. An RII value of 1 indicates no difference between the socioeconomic groups. An RII value greater than 1 indicates larger inequality but an RII value smaller than 1 means less inequality