Descriptive statistics
| VARIABLE | PATIENTS WITHOUT DEPRESSION (BDI-II SCORE < 20), N = 597 | PATIENTS WITH DEPRESSION (BDI-II SCORE ≥ 20), N = 83 | TOTAL, N = 680 | P VALUE |
|---|---|---|---|---|
| Baseline variables | ||||
| Female sex, n (%) | 285 (47.7) | 42 (50.6) | 327 (48.1) | .63 |
| Age, y, n (%) | < .001 | |||
| • < 45 | 41 (6.9) | 11 (13.3) | 52 (7.6) | |
| • 45–64 | 318 (53.3) | 58 (69.9) | 376 (55.3) | |
| • ≥ 65 | 238 (39.9) | 14 (16.9) | 252 (37.1) | |
| Household income > $100 000, n (%) | 133 (22.3) | 11 (13.3) | 144 (21.2) | .06 |
| Cancer site, n (%) | .38 | |||
| • Breast | 31 (5.2) | 7 (8.4) | 38 (5.6) | |
| • Gastrointestinal | 333 (55.8) | 42 (50.6) | 375 (55.1) | |
| • Gynecologic or genitourinary | 77 (12.9) | 8 (9.6) | 85 (12.5) | |
| • Lung | 156 (26.1) | 26 (31.3) | 182 (26.8) | |
| Physical symptom count | ||||
| • Mean (SD) | 6.42 (4.33) | 10.51 (4.56) | 6.92 (4.56) | < .001 |
| • Median (IQR) | 6 (3–9) | 10 (8–13) | 6 (4–9) | < .001 |
| Days since diagnosis | ||||
| • Mean (SD) | 885 (1263) | 858 (1311) | 882 (1268) | .85 |
| • Median (IQR) | 451 (173–1036) | 428 (170–893) | 451 (173–1032) | .90 |
| Days to death | ||||
| • Mean (SD) | 402 (338) | 398 (412) | 402 (347) | .92 |
| • Median (IQR) | 318 (156–548) | 212 (129–484) | 306 (151–537) | .19 |
| No death, n (%) | 100 (16.8) | 18 (21.7) | 118 (17.4) | .27 |
| No. of ADGs | ||||
| • Mean (SD) | 9.36 (2.96) | 9.36 (2.87) | 9.36 (2.94) | > .99 |
| • Median (IQR) | 9 (7–11) | 9 (7–11) | 9 (7–11) | .80 |
| Look-back outcomes | ||||
| No. of primary care non–mental health visits | ||||
| • Mean (SD) | 5.34 (5.73) | 7.22 (7.94) | 5.57 (6.07) | .008 |
| • Median (IQR) | 4 (1–7) | 5 (2–9) | 4 (2–8) | .04 |
| No. of primary care mental health visits | ||||
| • Mean (SD) | 0.73 (2.23) | 2.34 (9.48) | 0.93 (3.94) | < .001 |
| • Median (IQR) | 0 (0–1) | 0 (0–1) | 0 (0–1) | .01 |
| No. of psychiatry visits | ||||
| • Mean (SD) | 0.52 (3.09) | 0.86 (3.01) | 0.56 (3.08) | .351 |
| • Median (IQR) | 0 (0–0) | 0 (0–0) | 0 (0–0) | .017 |
| No. of oncology visits | ||||
| • Mean (SD) | 11.40 (10.04) | 10.64 (9.46) | 11.31 (9.97) | .51 |
| • Median (IQR) | 9 (4–15) | 7 (4–16) | 8 (4–16) | .44 |
| No. of surgery visits | ||||
| • Mean (SD) | 2.24 (2.55) | 2.47 (2.33) | 2.27 (2.53) | .44 |
| • Median (IQR) | 1 (0–3) | 2 (1–3) | 2 (0–3) | .14 |
| Days observed | ||||
| • Mean (SD) | 280 (114) | 275 (114) | 279 (114) | .61 |
| • Median (IQR) | 365 (176–365) | 365 (165–365) | 365 (173–365) | .40 |
| Look-forward outcomes | ||||
| No. of primary care non–mental health visits | ||||
| • Mean (SD) | 7.38 (6.92) | 8.90 (8.75) | 7.57 (7.18) | .07 |
| • Median (IQR) | 6 (3–10) | 6 (2–13) | 6 (3–10) | .48 |
| No. of primary care mental health visits | ||||
| • Mean (SD) | 0.59 (2.02) | 2.08 (6.96) | 0.77 (3.11) | < .001 |
| • Median (IQR) | 0 (0–0) | 0 (0–1) | 0 (0–0) | .01 |
| No. of psychiatry visits | ||||
| • Mean (SD) | 0.48 (2.80) | 0.77 (2.27) | 0.51 (2.74) | .364 |
| • Median (IQR) | 0 (0–0) | 0 (0–0) | 0 (0–0) | .011 |
| No. of oncology visits | ||||
| • Mean (SD) | 12.11 (10.61) | 9.31 (8.67) | 11.77 (10.43) | .02 |
| • Median (IQR) | 10 (4–17) | 7 (3–14) | 9 (4–17) | .02 |
| No. of surgery visits | ||||
| • Mean (SD) | 0.98 (1.82) | 0.95 (2.21) | 0.98 (1.87) | .90 |
| • Median (IQR) | 0 (0–1) | 0 (0–1) | 0 (0–1) | .51 |
| Days observed | ||||
| • Mean (SD) | 280 (111) | 262 (118) | 278 (112) | .18 |
| • Median (IQR) | 365 (193–365) | 365 (144–365) | 365 (189–365) | .37 |
ADG—ambulatory diagnostic group, BDI-II—Beck Depression Inventory-II, IQR—interquartile range.