Table 4. Asthma-related healthcare use between FLI groups.

Variables	0≤ FLI <30	30≤ FLI <60	FLI ≥60	P value
N(%)*	13744(83.9)	1986(12.1)	647 (4.0)
Hospitalizations				< 0.001
Never	13617(99.07%)	1965(98.94%)	635(98.1%)
Ever†	127(0.93%)	21(1.06%)	12(1.9%)
Mean ± SD‡	1.04 ± 1.01	1.3 ± 0.98	1.64 ± 1.15	< 0.001
Hospitalization days§
per capita (Mean, SD)	12.7 ± 13.15	14.5 ± 12.24	17.8 ± 18.32	< 0.001
per each admission (Mean, SD)	8.38 ± 8.7	10.72 ± 8.65	13.56 ± 11.28	< 0.001
ICU hospitalizations				< 0.001
Never	13685(99.96%)	192(99.93%)	642(99.92%)
Ever	59(0.04%)	14(0.07%)	5(0.08%)
Mean ± SD	1.21 ± 0.51	1.22 ± 0.24	1.27 ± 0.71	0.283
ED visit¶
Never	13744	1986	647
Ever	-	-	-
Mean ± SD	-	-	-
No. of outpatient visits				< 0.001
Never	5523(40.3%)	750(37.9%)	242(36.6%)
Ever	8211 (59.7%)	1231 (62.1%)	420 (63.4%)
Mean ± SD	3.42 ± 4.87	3.45 ± 7.91	3.64 ± 8.2	0.068

*Total number of new onset asthma in each FLI group.

^†Number of patients who underwent asthma-related hospitalization at least once.

^‡Average number of admissions per person among patients who had asthma-related hospitalizations at least once.

^§Average length of stay among patients who had asthma-related hospitalizations at least once (per person or per admission).

^¶Included patients who underwent asthma-related ED visits without admission.