Exploring the performance of large language models on hepatitis B infection-related questions: A comparative study

Table 3 Comparison of readability of answers from ChatGPT-3.5 with the 8^th grade reading level, mean ± SD

Subfield	GFI	P value	FKGL	P value
Risk factors	16.73 ± 1.77	0.013	12.60 ± 1.72	0.043
Clinical manifestation	13.68 ± 2.12	0.043	10.75 ± 1.72	0.109
Diagnosis	15.46 ± 1.65	0.016	12.12 ± 1.61	0.048
Treatment	21.22 ± 1.99	< 0.001	17.22 ± 1.47	< 0.001
Prevention	18.89 ± 1.80	< 0.001	15.53 ± 1.72	< 0.001
Prognosis	18.52 ± 1.85	0.010	15.51 ± 2.17	0.027
Overall	18.93 ± 3.03	< 0.001	15.31 ± 2.67	< 0.001

GFI: Gunning Fog index; FKGL: Flesch-Kincaid grade level.