Table 2.
Receipt of Co-testing versus Pap Alone by year, in three US health care systems (2010–2017).
| Patient Count | Unadjusted | Adjusted * | ||||
|---|---|---|---|---|---|---|
| Co-test | Pap-only | OR (95% CI) | p-value | AOR (95% CI) | p-value | |
| Healthcare system, 20101 | ||||||
| MGB | 3,484 | 9,389 | (ref) | - | (ref) | - |
| KPWA | 91 | 17,396 | 0.00 (0.00,0.00) | <0.001 | 0.00 (0.00,0.00) | <0.001 |
| PHHS-UTSW | 2,547 | 8,533 | 0.43 (0.24,0.75) | 0.003 | 0.50 (0.28,0.89) | 0.018 |
| Healthcare system, 20131 | ||||||
| MGB | 5,498 | 5,415 | (ref) | - | (ref) | - |
| KPWA | 1,222 | 11,202 | 0.02 (0.01,0.03) | <0.001 | 0.02 (0.01,0.04) | <0.001 |
| PHHS-UTSW | 996 | 11,280 | 0.07 (0.04,0.11) | <0.001 | 0.08 (0.04,0.14) | <0.001 |
| Healthcare system, 20171 | ||||||
| MGB | 9,567 | 2,516 | (ref) | - | (ref) | - |
| KPWA | 10,219 | 467 | 5.63 (2.99,10.58) | <0.001 | 7.32 (3.69,14.54) | <0.001 |
| PHHS-UTSW | 1,446 | 9,703 | 0.01 (0.00, 0.01) | <0.001 | 0.01 (0.00,0.01) | <0.001 |
| Annual change, by healthcare system2 | ||||||
| MGB | - | - | 1.70 (1.68,1.71) | <0.001 | 1.69 (1.68,1.71) | <0.001 |
| KPWA | - | - | 7.20 (6.97,7.43) | <0.001 | 7.20 (6.97,7.43) | <0.001 |
| PHHS-UTSW | - | - | 0.91 (0.89,0.93) | <0.001 | 0.91 (0.89,0.93) | <0.001 |
Notes:
Estimates based on overall fixed effect model fitted to data from all three healthcare systems including main effects for healthcare system, calendar year of Pap or co-test, their interactions, main effects for covariates in adjusted models, and random effects for provider and clinic/facilities.
Healthcare system ORs are odds ratios for receiving co-test vs. Pap alone for women at each healthcare system relative to women at MGB, in the specified year, assuming common unobserved provider and clinic/facility effects and adjustment for a woman’s age, race, insurance type, risk status, and provider type, for adjusted estimates.
Annual change ORs are odds ratios for women in one year relative to the prior year, at each healthcare system, assuming common unobserved provider and clinic/facility effects and adjustment for individual- and provider-level covariates in the adjusted estimates.
Abbreviations:
MGB: Mass General Brigham
KPWA: Kaiser Permanente Washington
PHHS-UTSW: Parkland Health & Hospital System-University of Texas Southwestern
OR: Odds Ratio
95% CI: 95% confidence interval