Table 3.
Factors Associated With Sufficient Documentation of Lung Cancer Risk Factors
| Risk factor | Patients with sufficient documentation, n | Frequency of sufficient documentation (%) | Relative risk (95% CI) | |
|---|---|---|---|---|
| Univariable analysis | Multivariable analysis | |||
| Age group in years | ||||
| ≤60 | 3046 | 51.0% | 1 [reference] | 1 [reference] |
| 61–65 | 2849 | 58.0% | 1.14 (1.09–1.19) | 1.12 (1.07–1.17) |
| 66–70 | 2696 | 63.9% | 1.25 (1.18–1.33) | 1.17 (1.11–1.23) |
| 71–75 | 2160 | 67.4% | 1.32 (1.24–1.41) | 1.22 (1.15–1.28) |
| 76–80 | 1612 | 69.3% | 1.36 (1.25–1.48) | 1.24 (1.17–1.31) |
| Sex | ||||
| Male | 6342 | 57.0% | 1 [reference] | 1 [reference] |
| Female | 6021 | 63.4% | 1.11 (1.05–1.17) | 1.06 (1.02–1.1) |
| Race | ||||
| White | 9950 | 62.7% | 1 [reference] | 1 [reference] |
| Black or African American | 679 | 43.7% | 0.7 (0.6–0.81) | 0.84 (0.76–0.93) |
| Asian | 665 | 54.5% | 0.87 (0.77–0.97) | 1 (0.93–1.06) |
| American Indian or Alaska Native | 128 | 57.4% | 0.91 (0.80–1.05) | 1.04 (0.92–1.18) |
| Native Hawaiian or other Pacific Islander | 63 | 48.8% | 0.78 (0.64–0.95) | 0.91 (0.74–1.12) |
| Multiple races | 94 | 63.9% | 1.02 (0.91–1.14) | 1.09 (0.97–1.22) |
| Unknown | 784 | 52.3% | 0.83 (0.71–0.98) | 0.91 (0.79–1.04) |
| Ethnicity | ||||
| Not Hispanic or Latino | 10,924 | 60.9% | 1 [reference] | 1 [reference] |
| Hispanic or Latino | 330 | 48.7% | 0.8 (0.72–0.90) | 0.98 (0.92–1.05) |
| Unknown | 1109 | 55.0% | 0.9 (0.81–1.01) | 0.99 (0.93–1.05) |
| Charlson Comorbidity Index score | ||||
| 0 | 4676 | 58.1% | 1 [reference] | 1 [reference] |
| 1 | 2737 | 59.5% | 1.02 (0.98–1.07) | 1.01 (0.98–1.04) |
| ≥2 | 4950 | 62.1% | 1.07 (0.99–1.15) | 1.06 (1.04–1.09) |
| Insurance | ||||
| Medicare | 6571 | 64.9% | 1 [reference] | 1 [reference] |
| Medicaid | 1007 | 41.3% | 0.64 (0.57–0.71) | 0.79 (0.75–0.84) |
| Commercial | 4570 | 60.8% | 0.94 (0.89–0.99) | 1.02 (0.98–1.07) |
| Other | 89 | 47.6% | 0.73 (0.64–0.84) | 0.84 (0.74–0.95) |
| Self-pay | 87 | 33.7% | 0.52 (0.43–0.63) | 0.79 (0.69–0.91) |
| Unknown | 39 | 39.8% | 0.61 (0.48–0.79) | 0.77 (0.60–0.99) |
| Preferred language | ||||
| English | 12,009 | 61.1% | 1 [reference] | 1 [reference] |
| Not English | 354 | 36.8% | 0.60 (0.49–0.74) | 0.71 (0.60–0.84) |
| e-Portal activated | ||||
| Yes | 8680 | 64.9% | 1 [reference] | 1 [reference] |
| No/unknown | 3683 | 50.7% | 0.78 (0.71–0.86) | 0.85 (0.80–0.90) |
| Office visits per year | ||||
| 0 | 416 | 52.6% | 0.98 (0.78–1.23) | 0.97 (0.84–1.11) |
| 1–3 | 2870 | 53.7% | 1 [reference] | 1 [reference] |
| 4–5 | 2220 | 61.0% | 1.14 (1.08–1.20) | 1.09 (1.04–1.14) |
| 6–9 | 3105 | 61.9% | 1.15 (1.08–1.23) | 1.11 (1.06–1.16) |
| ≥10 | 3752 | 64.3% | 1.2 (1.1–1.31) | 1.2 (1.14–1.27) |
| Provider specialty | ||||
| Family medicine | 7457 | 62.4% | 1 [reference] | 1 [reference] |
| Internal medicine | 4747 | 57.3% | 0.92 (0.78–1.08) | 0.98 (0.89–1.08) |
| Other | 159 | 40.2% | 0.64 (0.51–0.81) | 0.84 (0.72–0.99) |
| Provider type | ||||
| Attending Physician | 9730 | 61.0% | 1 [reference] | 1 [reference] |
| Advance practice practitioner | 2003 | 59.3% | 0.97 (0.85–1.11) | 0.99 (0.88–1.10) |
| Resident physician | 630 | 48.1% | 0.79 (0.67–0.93) | 1 (0.91–1.10) |
| Provider clinical FTE | ||||
| 0.05–0.5 | 3202 | 52.2% | 0.82 (0.66–1.00) | 0.98 (0.86–1.04) |
| 0.51–0.7 | 2718 | 63.9% | 1 [reference] | 1 [reference] |
| 0.71–0.9 | 3991 | 60.7% | 0.95 (0.84–1.08) | 0.98 (0.89–1.07) |
| 0.91–1 | 2452 | 66.8% | 1.05 (0.93–1.18) | 1.07 (0.94–1.22) |
| FTE-adjusted panel size | ||||
| 6.25–1076 | 2822 | 51.3% | 0.81 (0.70–0.94) | 0.96 (0.89–1.04) |
| 1077–1632 | 3238 | 63.3% | 1 [reference] | 1 [reference] |
| 1633–1957 | 3095 | 63.1% | 1 (0.89–1.11) | 0.99 (0.89–1.10) |
| 1958–6385 | 3208 | 62.8% | 0.99 (0.9–1.10) | 0.99 (0.9–1.08) |
| Medical assistant to primary care provider ratio | ||||
| <1 | 1734 | 46.4% | 0.74 (0.56–0.96) | 0.84 (0.68–1.04) |
| ≥1 | 10,629 | 62.9% | 1 [reference] | 1 [reference] |
FTE, full-time equivalent.