Table 2 Adjusted odds ratios for late versus early-stage CRC presentation, by sex

Age group in yrs

 0–39

0.95 (0.78, 1.12)

1.26 (1.09, 1.42)

 40–49

1.04 (0.90, 1.19)

1.22 (1.08, 1.37)

 50–59

1.00 P = 0.01

1.00 P < 0.01

 60–69

0.95 (0.82, 1.08)

1.10 (0.96, 1.24)

 70–79

1.11 (0.98, 1.25)

1.06 (0.90, 1.22)

 80+

1.19 (1.00, 1.37)

0.91 (0.68, 1.14)

Marital status

 Married

1.00 P = 0.32

1.00 P = 0.01

 Unmarried

1.14 (0.94, 1.35)

1.23 (1.10, 1.37)

Region

 Riyadh

1.00 P < 0.0001

1.00 P < 0.0001

 Eastern

1.21 (1.08, 1.34)

1.04 (0.90, 1.18)

 Makkah

0.97 (0.84, 1.09)

0.86 (0.73, 0.99)

 Madina

0.88 (0.67, 1.10)

0.71 (0.47, 0.96)

 Asir

0.88 (0.69, 1.07)

0.95 (0.75, 1.15)

 Jazan

0.95 (0.60, 1.30)

0.60 (0.20, 1.01)

 Najran

1.35 (0.89, 1.81)

0.86 (0.37, 1.34)

 Hail

1.43 (1.11, 1.74)

0.88 (0.51, 1.24)

 Qassim

1.18 (0.96, 1.40)

0.93 (0.70, 1.17)

 Baha

0.78 (0.34, 1.22)

0.60 (0.18, 1.02)

 Jouf

2.08 (1.63, 2.52)

1.21 (0.68, 1.73)

 Northern

1.16 (0.58, 1.73)

2.14 (1.60, 2.68)

 Tabuk

1.25 (0.95, 1.55)

1.11 (0.76, 1.47)

Diagnosis date

 1997–2001

1.00 P < 0.01

1.00 P < 0.001

 2002–2006

1.24 (1.04, 1.44)

1.33 (1.12, 1.55)

 2007–2011

1.39 (1.20, 1.57)

1.49 (1.29, 1.69)

 2012–2017

1.24 (1.06, 1.42)

1.48 (1.29, 1.67)

Anatomical site

 Colon

1.00 P = 0.03

1.00 P = 0.05

 Rectosigmoid

1.18 (1.05, 1.30)

1.18 (1.04, 1.31)

 Rectal

0.99 (0.88, 1.10)

1.04 (0.92, 1.16)