Table 2 Univariate and multivariate logistic regression for analysing the demographic and related clinical characteristics for developing distant metastases in patients diagnosed with colorectal cancer (diagnosed 2010–2016)

 ≤ 50

1 (reference)

1.00

1 (reference)

1.00

 51–60

0.95 (0.92–0.99)

0.012

0.94 (0.90–0.98)

0.007

 61–70

0.92 (0.88–0.95)

< 0.001

0.93 (0.89–0.97)

0.001

 71–80

0.81 (0.78–0.85)

< 0.001

0.86 (0.82–0.90)

< 0.001

 81–90

0.80 (0.77–0.83)

< 0.001

0.76 (0.72–0.80)

< 0.001

 ≥ 91

0.93 (0.86–1.01)

0.067

0.63 (0.58–0.70)

< 0.001

 Female

1 (reference)

1.00

1 (reference)

1.00

 Male

1.16 (1.14–1.19)

< 0.001

1.21 (1.17–1.24)

< 0.001

 White

1 (reference)

1.00

1 (reference)

1.00

 Black

1.33 (1.29–1.38)

< 0.001

1.10 (1.06–1.14)

< 0.001

 Others

0.96 (0.92–0.99)

0.040

0.82 (0.78–0.86)

< 0.001

 Unknown

0.24 (0.19–0.29)

< 0.001

0.18 (0.15–0.23)

< 0.001

 Unmarried

1 (reference)

1.00

1 (reference)

1.00

 Married

0.84 (0.82–0.86)

< 0.001

0.98 (0.95–1.01)

0.151

 Unknown

0.69 (0.65–0.72)

< 0.001

0.74 (0.69–0.78)

< 0.001

 Insured

1 (reference)

1.00

1 (reference)

1.00

 Any Medic aid

1.45 (1.40–1.49)

< 0.001

1.16 (1.12–1.21)

< 0.001

 Uninsured

1.78 (1.68–1.88)

< 0.001

1.32 (1.23–1.41)

< 0.001

 Unknown

NA

NA

NA

NA

 Right colon

1 (reference)

1.00

1 (reference)

1.00

 Left colon

1.28 (1.25–1.32)

< 0.001

1.18 (1.14–1.22)

< 0.001

 Rectum

0.99 (0.96–1.02)

0.628

0.84 (0.81–0.87)

< 0.001

 Unknown

5.50 (5.21–5.80)

< 0.001

2.03 (1.90–2.17)

< 0.001

 Grade I

1 (reference)

1.00

1 (reference)

1.00

 Grade II

2.19 (2.07–2.31)

< 0.001

1.81 (1.70–1.92)

< 0.001

 Grade III

3.54 (3.33–3.77)

< 0.001

2.10 (1.96–2.25)

< 0.001

 Grade IV

3.23 (2.96–3.52)

< 0.001

1.92 (1.75–2.12)

< 0.001

 Unknown

7.13 (6.72–7.56)

< 0.001

3.24 (3.04–3.47)

< 0.001

 N0

1 (reference)

1.00

1 (reference)

1.00

 N1

2.69 (2.61–2.77)

< 0.001

0.29 (0.26–0.31)

< 0.001

 N2

3.64 (3.52–3.76)

< 0.001

0.63 (0.60–0.66)

< 0.001

 Unknown

10.50 (10.05–10.96)

< 0.001

1.10 (1.05–1.16)

< 0.001

 T1

1 (reference)

1.00

1 (reference)

1.00

 T2

0.35 (0.32–0.38)

< 0.001

3.15 (3.04–3.26)

< 0.001

 T3

1.50 (1.44–1.56)

< 0.001

4.22 (4.04–4.40)

< 0.001

 T4

3.62 (3.46–3.78)

< 0.001

3.54 (3.36–3.73)

< 0.001

 Unknown

8.11 (7.77–8.46)

< 0.001

3.15 (3.04–3.26)

< 0.001

 Negative

1 (reference)

1.00

1 (reference)

1.00

 Positive

9.16 (8.81–9.52)

< 0.001

6.63 (6.37–6.91)

< 0.001

 Unknown

2.15 (2.07–2.24)

< 0.001

1.57 (1.51–1.64)

< 0.001