| No. visits with a syndrome-positive physician claim | Bivariate regression analysis | Multivariate regression analysis1 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Billing practices | Syndrome-positive in the chart (N = 2,967) | Syndrome-negative in the chart (N = 1,363) | Total (N = 4,330) | OR | 95% CI | P value | OR | 95% CI | P value | |||
 | No. | % | No. | % | No. | % |  |  |  |  |  |  |
What person entered the diagnostic code in the claim? | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Physician | 443 | 14.9 | 203 | 14.9 | 646 | 14.9 | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. |
   Secretary or nurse | 2,015 | 67.9 | 907 | 66.5 | 2,922 | 67.5 | 1.01 | (0.82, 1.26) | 0.91 | 0.93 | (0.75, 1.15) | 0.50 |
   Off-site billing company or RAMQ (i.e., paper billing)2 | 509 | 17.2 | 253 | 18.6 | 762 | 17.6 | 0.92 | (0.71, 1.19) | 0.52 | 0.81 | (0.62, 1.06) | 0.12 |
Billing software used: | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Soft Informatique | 715 | 24.4 | 342 | 25.4 | 1,057 | 24.8 | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. |
   Purkinje | 721 | 24.7 | 264 | 19.6 | 985 | 23.1 | 1.30 | (1.07, 1.60) | 0.01 | 1.29 | (1.05, 1.59) | 0.02 |
   ADN Medical | 405 | 13.9 | 166 | 12.3 | 571 | 13.4 | 1.16 | (0.90, 1.49) | 0.24 | 1.17 | (0.91, 1.50) | 0.23 |
   Omni-Med.com Caduceus | 250 | 8.6 | 124 | 9.2 | 374 | 8.8 | 0.96 | (0.74, 1.25) | 0.77 | 0.94 | (0.72, 1.24) | 0.67 |
   Medicus MED-WIN | 123 | 4.2 | 67 | 5.0 | 190 | 4.5 | 0.87 | (0.65, 1.17) | 0.36 | 0.87 | (0.64, 1.17) | 0.35 |
   Facturation.net | 73 | 2.5 | 64 | 4.8 | 137 | 3.2 | 0.55 | (0.35, 0.86) | 0.01 | 0.54 | (0.34, 0.85) | 0.01 |
   ANDX Xclaim | 61 | 2.1 | 40 | 3.0 | 115 | 2.7 | 0.73 | (0.47, 1.14) | 0.17 | 0.70 | (0.42, 1.15) | 0.16 |
   CareOffice | 85 | 2.9 | 30 | 2.2 | 103 | 2.4 | 1.36 | (0.84, 2.18) | 0.21 | 1.32 | (0.76, 2.27) | 0.32 |
   Médifiche | 75 | 2.6 | 28 | 2.1 | 101 | 2.4 | 1.28 | (0.81, 2.02) | 0.29 | 1.24 | (0.77, 1.98) | 0.38 |
   Toubib | 52 | 1.8 | 43 | 3.2 | 95 | 2.2 | 0.58 | (0.32, 1.05) | 0.07 | 0.53 | (0.29, 0.97) | 0.04 |
   FMP | 57 | 2.0 | 16 | 1.2 | 73 | 1.7 | 1.71 | (0.92, 3.19) | 0.09 | 1.74 | (0.90, 3.34) | 0.10 |
   Médicalc Inc.3 | 49 | 1.7 | 19 | 1.4 | 68 | 1.6 | 1.23 | (0.61, 2.47) | 0.57 | 1.27 | (0.62, 2.62) | 0.51 |
   Param | 47 | 1.6 | 18 | 1.3 | 65 | 1.5 | 1.24 | (0.67, 2.29) | 0.49 | 1.19 | (0.66, 2.17) | 0.56 |
   ACL Systèmes Santé | 43 | 1.5 | 20 | 1.5 | 63 | 1.5 | 1.03 | (0.58, 1.84) | 0.92 | 1.06 | (0.56, 2.02) | 0.85 |
   Factura-Med | 43 | 1.5 | 17 | 1.3 | 60 | 1.4 | 1.20 | (0.79, 1.84) | 0.39 | 1.24 | (0.81, 1.89) | 0.32 |
   FmedX MED-Office | 39 | 1.3 | 18 | 1.3 | 57 | 1.3 | 1.04 | (0.48, 2.25) | 0.92 | 0.99 | (0.46, 2.13) | 0.98 |
   Sys-Thèmes | 24 | 0.8 | 9 | 0.7 | 33 | 0.8 | 1.27 | (0.54, 3.00) | 0.59 | 1.24 | (0.55, 2.77) | 0.61 |
   Gestimed | 12 | 0.4 | 14 | 1.0 | 26 | 0.6 | 0.41 | (0.21, 0.81) | 0.01 | 0.45 | (0.25, 0.84) | 0.01 |
   Salus | 10 | 0.3 | 10 | 0.7 | 20 | 0.5 | 0.48 | (0.18, 1.32) | 0.16 | 0.45 | (0.14, 1.44) | 0.18 |
   Logimedic | 7 | 0.2 | 8 | 0.6 | 15 | 0.4 | 0.41 | (0.16, 1.05) | 0.06 | 0.39 | (0.15, 1.03) | 0.06 |
   Medi-Go | 2 | 0.1 | 6 | 0.5 | 8 | 0.2 | 0.16 | (0.02, 1.68) | 0.13 | 0.15 | (0.01, 1.72) | 0.13 |
   Services de facturations médicales informatiques 3 | 4 | 0.1 | 3 | 0.2 | 7 | 0.2 | 0.63 | (0.40, 1.01) | 0.06 | 0.65 | (0.37, 1.16) | 0.14 |
   Other4 | 13 | 0.4 | 3 | 0.2 | 16 | 0.4 | 2.12 | (0.71, 6.29) | 0.18 | 1.94 | (0.71, 5.28) | 0.19 |
   Unknown | 15 | 0.5 | 17 | 1.3 | 32 | 0.8 | 0.41 | (0.20,0.86) | 0.02 | 0.48 | (0.24, 0.93) | 0.03 |
   RAMQ (i.e., paper billing)2 | 42 | 1.4 | 17 | 1.2 | 59 | 1.4 | 1.18 | (0.55, 2.57) | 0.67 | 1.39 | (0.63, 3.07) | 0.41 |
 | Mean | SD | Mean | SD | Mean | SD |  |  |  |  |  |  |
Annual billing volume (per 1,000 claims)5 | 4,913 | 2,623 | 4,913 | 2,646 | 4,913 | 2,630 | 1.00 | (0.97, 1.03) | 0.94 | 1.00 | (0.97, 1.04) | 0.91 |
Percent of visits with a missing or unspecified diagnostic code5 | 2.5 | 5.7 | 2.5 | 5.1 | 2.5 | 5.5 | 1.00 | (0.99, 1.02) | 0.91 | 1.01 | (0.99, 1.02) | 0.34 |
No distinct diagnostic codes used (per 100 codes)5 | 228 | 88 | 227 | 97 | 228 | 91 | 1.01 | (0.94, 1.10) | 0.76 | 1.02 | (0.92, 1.12) | 0.75 |