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Table 3 Adjusted probabilities for income quintiles

From: Inequality in treatment use among elderly patients with acute myocardial infarction: USA, Belgium and Quebec

Procedure use in all hospitals, unadjusted for distance (Model 1). N = 1,614,922
USA CATH PCI CABG No treatment
INC_Q1 0.1374* 0.1085* 0.0725* 0.6816
INC_Q2 0.1372* 0.1031* 0.0710* 0.6887
INC_Q3 0.1442* 0.1059* 0.0700* 0.6799
INC_Q4 0.1538* 0.1138* 0.0741* 0.6583
INC_Q5 0.1564* 0.1172* 0.0758* 0.6506
Range 13.99% 13.68% 8.29% 5.86%
Procedure use in all hospitals, adjusted for distance (Model 2). N = 1,614,992
INC_Q1 0.1600* 0.1168* 0.0766* 0.6466
INC_Q2 0.1573* 0.1149* 0.0766* 0.6512
INC_Q3 0.1584* 0.1127* 0.0730* 0.6559
INC_Q4 0.1592* 0.1149* 0.0747* 0.6512
INC_Q5 0.1564* 0.1172* 0.0756* 0.6508
Range 1.72% 3.99% 4.93% 1.44%
Procedure use in hospitals that provide on-site CABG and PCI (Model 3). N = 782,715
INC_Q1 0.1932* 0.1987* 0.1299* 0.4782
INC_Q2 0.1924* 0.2125* 0.1422* 0.4529
INC_Q3 0.1940* 0.2244* 0.1458* 0.4358
INC_Q4 0.1900* 0.2292* 0.1496* 0.4312
INC_Q5 0.1889* 0.2395* 0.1549* 0.4167
Range 2.70% 20.53% 19.25% 14.76%
QUEBEC CTH PCI CABG No treatment
Procedure use in all hospitals, unadjusted for distance (Model 1). N = 37,190
INC_Q1 0.0899* 0.0533* 0.0076 0.8492
INC_Q2 0.0834* 0.0474* 0.0061 0.8631
INC_Q3 0.0753* 0.0458* 0.0066 0.8723
INC_Q4 0.0980* 0.0521* 0.0074 0.8425
INC_Q5 0.1113* 0.0578* 0.0077 0.8232
Range 47.81% 26.20% 26.23% 5.96%
Procedure use in all hospitals, adjusted for distance (Model 2). N = 37,190
INC_Q1 0.0964* 0.0571* 0.0085 0.8380
INC_Q2 0.0925* 0.0538* 0.0077 0.8460
INC_Q3 0.0838* 0.0525* 0.0080 0.8557
INC_Q4 0.1011* 0.0550* 0.0078 0.8361
INC_Q5 0.1113* 0.0578* 0.0077 0.8232
Range 32.82% 10.10% 10.39% 3.95%
Procedure use in hospitals that provide on-site CABG and PCI (Model 3). N = 5,859
INC_Q1 0.1312 0.1448 0.0396 0.6844
INC_Q2 0.1274 0.1434 0.0446 0.6846
INC_Q3 0.1322 0.1302 0.0283 0.7093
INC_Q4 0.1462 0.1333 0.0390 0.6815
INC_Q5 0.1367 0.1562 0.0338 0.6733
range 14.76% 19.97% 57.60% 5.35%
BELGIUM CATH PCI CABG No treatment
Procedure use in all hospitals, unadjusted for distance (Model 1). N = 49,445
INC_Q1 0.1261* 0.0383* 0.0111* 0.8245
INC_Q2 0.0942* 0.0255* 0.0061* 0.8742
INC_Q3 0.0836* 0.0227* 0.0082* 0.8855
INC_Q4 0.0998* 0.0346* 0.0078* 0.8578
INC_Q5 0.1191* 0.0458* 0.0115* 0.8236
range 26.35% 101.76% 88.52% 7.40%
Procedure use in all hospitals, adjusted for distance (Model 2). N = 49,445
INC_Q1 0.1153* 0.0363* 0.0100* 0.8384
INC_Q2 0.1090* 0.0281* 0.0073* 0.8556
INC_Q3 0.0992* 0.0260* 0.0099* 0.8649
INC_Q4 0.1202* 0.0405* 0.0097* 0.8296
INC_Q5 0.1191* 0.0458* 0.0115* 0.8236
range 21.17% 76.15% 57.53% 5.01%
Procedure use in hospitals that provide on-site CABG and PCI (Model 3). N = 14,952
INC_Q1 0.2669* 0.1293* 0.0372* 0.5666
INC_Q2 0.2633* 0.1127* 0.0299* 0.5941
INC_Q3 0.2753* 0.1042* 0.0419* 0.5786
INC_Q4 0.2853* 0.1329* 0.0331* 0.5487
INC_Q5 0.2701* 0.1511* 0.0378* 0.5410
Range 8.36% 45.01% 40.13% 9.81%
  1. Notes: estimates for SES variables obtained from multinomial logit regression (adjusted probabilities are adjusted for age groups, year and comorbidities). This Table should be read as follows: e.g., for individuals from the US living in the lowest quintile (Q1) income area, the adjusted probability of undergoing a CATH is 0.1374, controlling for age, sex, comorbidities and year. The 'no treatment' category is obtained by simple subtraction; hence it does not include any indication about statistical significance.
  2. *Estimate significantly differs from at least one other quintile's estimate at p ≤ 0.05.