Table 1.

Basic characteristics of the study groups

Basic profile	Group A	Group B	P value
Notified cases	482 cases	185 cases
Mean age (y)	65.7 ± 18.0	62.4 ± 20.1	0.051b
Age groups
0–18 (y)	8 (1.7%)	2 (1.1%)	0.125a
19–64 (y)	188 (39.0%)	88 (47.6%)
≥65 (y)	286 (59.3%)	95 (51.3%)
Male/female	299 cases/183 cases	119 cases/66 cases	0.647a

^aUsing Chi-squared or Fisher’s exact tests (two-tailed)

^bUsing Wilcoxon rank-sum test