Table 3.
LDCT Scan Imaging Ordering and Completion Rates in the Preintervention and Intervention Phases
| Outcome | Before Intervention (August 2019-August 2020) |
Intervention (August 2020-May 2021) |
OR (95% CI) | P Value | ||
|---|---|---|---|---|---|---|
| No./Total No. (%) | Estimated Rate | No./Total No. (%) | Estimated Rate | |||
| LDCT scan imaging ordering | 77/1,090 (7.1) | 7.0 (5.0-9.8) | 280/1,026 (27.3) | 26.9 (21.2-33.4) | 4.9 (3.4-6.9) | < .001a |
| LDCT scan imaging completion | 48/1,090 (4.4) | 5.0 (3.3-7.4) | 182/1,026 (17.7) | 19.8 (14.8-25.9) | 4.7 (3.1-7.1) | < .001a |
| LDCT scan imaging follow-through | 48/77 (62.3) | 65.1 (51.8-76.4) | 182/280 (65.0) | 65.3 (58.1-71.9) | 1.0 (0.5-1.9) | .98 |
| LDCT scan imaging ordering by screening benefit level | .086b | |||||
| High benefit | 60/731 (8.2) | 9.4 (6.6-13.4) | 196/676 (29.0) | 29.7 (22.7-37.8) | 4.1 (2.7-6.1) | < .001a |
| Intermediate benefit | 17/359 (4.7) | 2.6 (1.1-5.9) | 84/350 (24.0) | 19.5 (11.5-31.1) | 8.9 (4.3-18.7) | < .001a |
| LDCT scan imaging completion by screening benefit level | .32b | |||||
| High benefit | 36/731 (4.9) | 6.8 (4.4-10.4) | 129/676 (19.1) | 23.3 (16.9-31.3) | 4.2 (2.6-6.7) | < .001a |
| Intermediate benefit | 12/359 (3.3) | 1.7 (0.6-4.7) | 53/350 (15.1) | 11.6 (5.7-22.1) | 7.5 (3.0-18.2) | < .001a |
| LDCT scan imaging ordering by pulmonologist involvement | ||||||
| No pulmonary visits | 63/1,000 (6.3) | ... | 261/962 (27.1) | ... | ... | ... |
| At least 1 pulmonary visit | 14/90 (15.6) | ... | 19/64 (29.7) | ... | ... | ... |
| LDCT scan imaging completion by pulmonologist involvement | ||||||
| No pulmonary visits | 39/1,000 (3.9) | ... | 168/962 (17.5) | ... | ... | ... |
| At least 1 pulmonary visit | 9/90 (10.0) | ... | 14/64 (21.9) | ... | ... | ... |
| LDCT scan imaging ordering by sex | .805b | |||||
| Female | 27/458 (5.9) | 6.3 (3.5-11.1) | 107/441 (24.3) | 23.5 (15.5-34.0) | 4.5 (2.5-8.3) | < .001a |
| Male | 50/632 (7.9) | 7.5 (4.9-11.2) | 173/585 (29.6) | 29.1 (21.7-37.7) | 5.1 (3.3-7.8) | < .001a |
| LDCT scan imaging completion by sex | .908b | |||||
| Female | 18/458 (3.9) | 5.0 (2.6-9.4) | 74/441 (16.8) | 19.9 (12.5-30.3) | 4.8 (2.4-9.5) | < .001a |
| Male | 30/632 (4.7) | 5.1 (3.0-8.3) | 108/585 (18.5) | 19.7 (13.5-27.8) | 4.6 (2.7-7.8) | < .001a |
| LDCT scan imaging ordering by race and ethnicity | ||||||
| Non-Hispanic White | 65/944 (6.9) | ... | 240/902 (26.6) | ... | ... | ... |
| Non-Hispanic Black | 2/17 (11.8) | ... | 6/17 (35.3) | ... | ... | ... |
| Hispanic | 5/68 (7.4) | ... | 15/57 (26.3) | ... | ... | ... |
| Other | 5/61 (8.2) | ... | 19/50 (38.0) | ... | ... | ... |
| LDCT scan imaging completion by race and ethnicity | ||||||
| Non-Hispanic White | 43/944 (4.6) | ... | 159/902 (17.6) | ... | ... | ... |
| Non-Hispanic Black | 1/17 (5.9) | ... | 5/17 (29.4) | ... | ... | ... |
| Hispanic | 2/68 (2.9) | ... | 9/57 (15.8) | ... | ... | ... |
| Other | 2/61 (3.3) | ... | 9/50 (18.0) | ... | ... | ... |
Because of the small sample size, for LDCT scan imaging follow-through, we used logistic regression without the random effect of patient identifier. The denominator is the subset of patients for whom LDCT scan imaging was ordered. Only observed rates are shown for pulmonologist involvement and race and ethnicity data because of the sparsity of the variable, which made it unsuitable for the regression analysis. LDCT = low-dose CT.
a
P < .05.
b
For interaction.