IQGAP1 and morphine dependence: Including meaningful indicators in the correlation analysis with the OASI total score in the multiple linear regression model, the results showed that the miR-124 level (B = 3.880, P = 0.012) and the IQGAP1 level (B = −5.883, P = 0.026) were independent factors influencing the severity of morphine dependence in patients with morphine dependence (Table 3).