Table 4 Effects of low dose aspirin (LDA) on the results of fecal immunochemical test in colorectal neoplasms screening.

From: Effects of antithrombotic drugs on the results of fecal immunochemical test in colorectal neoplasms screening

Measure

Outcome

LDA

p-value

Yes (n = 71)

No (n = 614)

Sensitivity

CN

14/25 (56.0%)

CI (34.9–75.6%)

122/217 (56.0%)

CI (49.3–62.9%)

0.9832

CRC

5/6 (83.3%)

CI (35.9–99.6%)

35/43 (81.4%)

CI (66.6–91.6%)

0.9086

CRC + AA

8/13 (61.5%)

CI (35.9–99.6%)

75/99 (75.8%)

CI (66.1–83.8%)

0.2370

NAA only

6/12 (50.0%)

CI (21.1–99.6%)

47/118 (39.8%)

CI (30.9–49.3%)

0.4946

Specificity

CN

26/46 (56.5%)

CI (41.1–71.1%)

223/397 (56.2%)

CI (51.1–61.1%)

0.9638

CRC

36/65 (55.4%)

CI (42.5–67.7%)

310/571 (54.3%)

CI (50.1–58.4%)

0.8668

CRC + AA

32/58 (55.2%)

CI (41.5–68.3%)

294/515 (57.1%)

CI (52.7–61.4%)

0.7801

NAA only

26/46 (56.5%)

CI (41.1–71.1%)

223/397 (56.2%)

CI (51.1–61.1%)

0.9638

PPV

CN

14/34 (41.2%)

CI (24.6–59.3%)

122/296 (41.2%)

CI (35.6–47.1%)

0.9964

CRC

5/34 (14.7%)

CI (5.0–31.1%)

35/296 (11.8%)

CI (8.4–16.1%)

0.6259

CRC + AA

8/34 (23.5%)

CI (10.7–41.2%)

75/296 (25.3%)

CI (20.5–30.7%)

0.8179

NAA only

6/26 (23.1%)

CI (9.0–43.6%)

47/221 (21.3%)

CI (16.1–27.3%)

0.8316

NPV

CN

26/37 (70.3%)

CI (53.0–84.1%)

223/318 (70.1%)

CI (64.8–75.1%)

0.9854

CRC

36/37 (97.3%)

CI (85.8–99.9%)

310/318 (97.5%)

CI (95.1–98.9%)

0.9454

CRC + AA

32/37 (86.5%)

CI (71.2–95.5%)

294/318 (92.5%)

CI (89.0–95.1%)

0.2098

NAA only

26/32 (81.2%)

CI (63.6–92.8%)

223/294 (75.9%)

CI (70.5–80.6%)

0.4946

  1. CN colorectal neoplasms, CRC colorectal cancer, AA advanced adenoma, NAA non advanced adenoma, PPV positive predictive value, NPV negative predictive value, CI confidence interval.