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Table 2 Patients referred to the health-care centers and RIGLD center for colorectal cancer screening

From: The impact of COVID-19 on national program of colorectal cancer screening in Tehran, Iran: a multicenter study

Date

Referral to health-care centers

Referral to the RIGLDd center

Patient’s contribution percentage for colonoscopy in case of FIT + (%) in RIGLD

Patient’s contribution percentage for colonoscopy in case of positive alarm signs (%) in RIGLD

Endoscopic findings in the RIGLD center

Total FITsa (n)

FIT + (n)

Alarm signs + (n)

FIT + (n)

Positive alarm signs

Sum (n)

Polyps (n)

CRCe (n)

IBDf (n)

Nl (n)

FHb + (n)

IDAc (n)

Rectal bleed (n)

Bowel habit change (n)

Abd. pain (n)

Weight loss (n)

Other (n)

Sum (n)

2018–2019

40599

2449

2106

724

382

23

90

53

48

9

8

613

1373

29.563%

29.107%

439

26

31

841

2020–2021

35663

2077

959

103

50

1

8

10

23

1

0

93

196

4.959%

9.697%

65

5

16

110

Decrease percentage during pandemics (%)

-12.16%

-15.19%

-54.46%

-85.77%

-87%

-96%

-91%

-81%

-52%

-89%

-100%

84.83%

-85%

-83.23%

-66.68%

-85%

-81%

-48%

-87%

P-value

0.00001

0.00001

0.00001

0.00001

0.00001

0.00003

0.00001

  1. Table 2 The detailed number of performed FITs, positive FITs and positive FITs referred to the RIGLD center for colonoscopy, individuals with warning signs and individuals with alarm signs referred to the RIGLD center for colonoscopy as well as number of patients with endoscopic findings in the 2-year intervals before and after the onset of the COVID-19. For analysis of categorical variables X2 was used and if needed Fisher’s exact test was used
  2. aFIT Fecal Immunochemical Test
  3. bFH Family History
  4. cIDA Iron Deficient Anemia
  5. dRIGLD Research Institute for Gastroenterology and Liver Diseases
  6. eCRC Colorectal Cancer
  7. fIBD Inflammatory Bowel Disease