Studying the relationship between clinical features and mental health among late-onset myasthenia gravis patients

Table 2 Correlation between clinical features and age at onset

Clinical features	Correlation	95%CI	t	P value
Disease duration	-0.59	-0.70, -0.446	-7.370	< 0.001c
BMI	0.41	0.233, 0.555	4.520	< 0.001c
Anti-AChR Ab	0.31	0.128, 0.475	3.335	0.001b
QOL-15	0.32	0.133, 0.479	3.383	0.001b
HAM-A	0.41	0.236, 0.557	4.548	< 0.001c
HAM-D	0.26	0.074, 0.432	2.759	0.007b

^aP < 0.05.

^bP < 0.01.

^cP < 0.001.

BMI: Body mass index; MG-QOL-15: Myasthenia Gravis Quality of Life 15 questionnaire; HAM-A: Hamilton Anxiety Rating Scale; HAM-D: Hamilton Depression Rating Scale.