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Table 2 Expected and observed probability of completing a colonoscopy within 6 months of abnormal FIT test, by points score

From: Development of a multivariable prediction model to identify patients unlikely to complete a colonoscopy following an abnormal FIT test in community clinics

Points Scorea

Expected Probability, %

Observed probability, %

(95% CI)

140–149

17.30%

18.00%

(7.0–29.0)

150–159

19.20%

14.50%

(6.4–22.6)

160–169

21.30%

18.10%

(10.2–26.0)

170–179

23.60%

27.90%

(19.8–35.9)

180–189

26.10%

23.60%

(16.1–31.1)

190–199

28.80%

28.80%

(21.5–36.0)

200–209

31.80%

33.80%

(25.9–41.8)

210–219

34.90%

40.70%

(32.3–49.1)

220–229

38.30%

34.60%

(26.4–42.8)

230–239

41.90%

39.60%

(30.2–49.1)

240–249

45.70%

45.20%

(34.9–55.5)

250–259

49.60%

54.70%

(43.1–66.2)

260–269

53.70%

54.30%

(44.0–64.5)

270–279

57.90%

46.40%

(33.0–59.9)

280–289

62.20%

66.70%

(51.2–82.1)

290–299

66.50%

58.30%

(37.1–79.6)

  1. aProbabilities calculated for point ranges with at least 20 patients