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Table 3 The effect of socio-economic status on hospital admission rates for medical DRGs

From: The use of end-quintile comparisons to identify under-servicing of the poor and over-servicing of the rich: A longitudinal study describing the effect of socioeconomic status on healthcare

MDC   Quintile 1:quintile 2 Quintile 5 :quintile 4
   Rate ratio 95% CI Rate ratio 95% CI
1 Nervous 1.05 (1.00 – 1.11) 0.96 (0.90–1.02)
2 Eye* 1.21 (1.15 – 1.28) 1.06 (0.99–1.15)
3 ENTM 0.87 (0.83 – 0.91) 1.17 (1.12–1.24)
4 Respiratory 1.15 (1.10 – 1.20) 0.92 (0.86–0.99)
5 Circulatory 1.02 (0.99 – 1.06) 0.96 (0.92–1.00)
6 Digestive 0.93 (0.89 – 0.96) 1.11 (1.06–1.15)
7 Pancreas*† 1.23 (1.16 – 1.29) 0.90 (0.83–0.96)
8 Musculoskeletal 1.01 (0.97 – 1.05) 1.01 (0.97–1.06)
9 Skin 1.19 (1.14 – 1.26) 1.06 (0.99–1.14)
10 Endocrine*† 1.23 (1.14 – 1.33) 0.93 (0.83–1.05)
11 Kidney*† 1.47 (1.32 – 1.64) 0.65 (0.57–0.75)
12 Male repro† 0.92 (0.85 – 1.00) 1.12 (1.04–1.21)
13 Female repro† 1.18 (1.09 – 1.29) 1.06 (0.96–1.16)
16 Blood 0.93 (0.89 – 0.98) 0.90 (0.85–0.95)
17 Neoplastic 0.89 (0.85 – 0.92) 1.11 (1.07–1.16)
21 Injuries 1.13 (1.08 – 1.18) 1.02 (0.96–1.08)
22 Burns* 1.18 (1.09 – 1.28) 0.90 (0.83–0.98)
  Total 1.03 (0.99 – 1.07) 1.03 (0.99–1.09)
  1. Bold text denotes over or underservicing
  2. * questionable convergence of poisson model
  3. † restricted subgroups to allow model convergence
  4. MDC 7 age ≥ 20 years
  5. MDC 10 age ≥ 25 years and 0–2 comorbid conditions
  6. MDC11 age ≥ 30
  7. MDC12 age range 30–64 years and sex male
  8. MDC13 age range 30–64 years and sex female