The percentage of poor QoS in students who have average learning outcome (PR = 0.73; 95% CI: 0.55 to 0.97), above average (PR = 0.68; 95% CI: 0.51 - 0.90) and fairly good (PR = 0.66; 95% CI: 0.47 to 0.92) were lower than students who have weak academic performance.