Table 4. The average pass rate and average excellent rate of experimental group and control group.

PBL pattern	Average Pass rate (95%CI)	Average Excellent rate (95%CI)
PBL vs. LBL
Experimental group	94.3% (91.0%-97.6%)	59.5% (50.5%-68.3%)
Control group	86.1% (81.2%-91.0%)	30.5%(22.2%-38.8%)
PBL+LBL vs. LBL
Experimental group	95.7% (94.3%-97.1%)	50.4% (46.9%-53.9%)
Control group	84.7% (82.1%-87.3%)	31.2% (27.9%-34.5%)
Total
Experimental group	95.4% (94.1%-96.7%)	51.6% (48.3%-54.9%)
Control group	84.9% (82.6%-87.2%)	31.1% (28.0%-34.2%)