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Table 3 UVB estimate in association with crude incidence rate of CRC using polynomial regression

From: Could age increase the strength of inverse association between ultraviolet B exposure and colorectal cancer?

Age groups Regression Coefficient P-value
(overall)
R2
(overall)
UVB UVB^2
0–14 years <  0.001 <  0.001 0.01 0.045
15–29 years − 0.007 <  0.001 0.01 0.04
30–44 years 0.04 <  0.001 <  0.001 0.24
45–59 years 0.27 −0.002 <  0.001 0.55
60–74 years −0.51 − 0.002 <  0.001 0.62
>/= 75 years − 1.78 −0.002 <  0.001 0.58