a trend toward significanceP = 0.11
A trend toward significance was observed for duration of the disease in months (coef = −0.01, P = 0.11) and for smoking (coef = −2.14, P = 0.10) [ Table 4 ].
A trend toward significance was observed for duration of the disease in months (coef = −0.01, P = 0.11) and for smoking (coef = −2.14, P = 0.10) [ Table 4 ].