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Table 3 Distribution and odds ratios for hospitalization by continuity index

From: Effects of continuity of care on hospital admission in patients with type 2 diabetes: analysis of nationwide insurance data

Characteristics Hospital admission Total P-value Unadjusted OR 95% CI Pfor Trend Adjusted OR 95% CI Pfor trend AUC§
Yes n (%)* No n (%)*
UPC              
Perfect 1.0 21,108 (2.4) 866,469 (97.6) 887,576 <.0001 1.00 - <.0001 1.00 - <.0001 0.597
0.76–0.99 13,177 (5.7) 220,022 (94.3) 233,198   2.45 2.28–2.63   2.45 2.25–2.67   
0.51–0.75 14,231 (7.5) 175,545 (92.5) 189,776   3.39 3.15–3.64   3.09 2.84–3.36   
0.26–0.50 6,169 (10.4) 53,046 (89.6) 59,215   5.38 4.85–5.96   3.90 3.45–4.42   
0.00–0.25 107 (29.8) 253 (70.2) 362   14.09 11.72-16.94   17.71 8.51–36.86   
COC              
Perfect 1.00 21,108 (2.4) 866,469 (97.6) 887,576 <.0001 1.00 - <.0001 1.00 - <.0001 0.598
0.76–0.99 5,762 (5.1) 107,599 (94.9) 113,361   2.20 1.99–2.42   2.44 2.17–2.75   
0.51–0.75 11,262 (6.2) 169,976 (93.8) 181,237   2.72 2.52–2.94   2.58 2.36–2.83   
0.26–0.50 14,577 (8.4) 158,714 (91.6) 173,291   3.77 3.50–4.06   3.30 3.03–3.59   
0.00–0.25 2,085 (14.2) 12,577 (85.8) 14,661   6.81 5.66–8.19   4.84 3.94–5.96   
SECON              
Perfect 1.00 21,108 (2.4) 866,469 (97.6) 887,576 <.0001 1.00 - <.0001 1.00 - <.0001 0.593
0.76–0.99 15,215 (5.7) 253,183 (94.3) 268,398   2.47 2.30–2.65   2.70 2.49–2.93   
0.51–0.75 12,023 (8.1) 135,599 (91.9) 147,622   3.64 3.37–3.94   2.97 2.71–3.26   
0.26–0.50 5,262 (9.7) 48,961 (90.3) 54,223   4.41 3.95–4.93   3.43 3.03–3.88   
0.00–0.25 1,185 (9.6) 11,123 (90.4) 12,308   4.37 3.50–5.46   3.27 2.53–4.23   
ICOC              
Perfect 1.00 21,108 (2.4) 866,469 (97.6) 887,576 <.0001 1.00 - <.0001 1.00 - <.0001 0.597
0.76–0.99 9,715 (5.4) 170,937 (94.6) 180,652   2.33 2.15–2.53   2.49 2.26–2.74   
0.51–0.75 17,015 (7.1) 221,398 (92.9) 238,414   3.16 2.95–3.38   2.88 2.66–3.11   
0.26–0.50 6,508 (10.8) 53,930 (89.2) 60,438   4.95 4.46–5.50   3.92 3.48–4.42   
0.00–0.25 446 (14.6) 2,600 (85.4) 3,046   7.05 4.70–10.56   4.60 2.80–7.54   
  1. UPC, usual provider care; COC, continuity of care; SECON, sequential continuity; ICOC, integrated continuity of care, AUC, area under the receiver operating characteristic curve).
  2. *weighted frequency (weighted percent).
  3. P for trend: wald Chi-square.
  4. Odds Ratio are adjusted by each continuity index (UPC, COC, SECON, and ICOC) separately and all other independent variables because of multicollinearity between index.
  5. §means discrimination ability of prediction model; The AUC of this model was 0.715.