. 2022 Sep 15;9:927579. doi: 10.3389/fmed.2022.927579

TABLE 1.

Multivariable analysis to determine the factors associated with not visiting clinics after a positive interferon-gamma release assay (IGRA) test.

Variables	Total	Not visiting clinic	Univariable analysis		Multivariable analysis

	n (column%)	n (row%)	RR (95% CI)	P-value	aRR (95% CI)	P-value
Participants	96,439 (100.0)	47,564 (49.3)
Sex
Female	83,185 (86.3)	40,156 (48.3)	1		1
Male	13,254 (13.7)	7,408 (55.9)	1.16 (1.14–1.18)	<0.001	1.11 (1.09–1.13)	<0.001
Age (years)
<20	5,470 (5.7)	2,912 (53.2)	1.18 (1.14–1.22)	<0.001	1.08 (1.04–1.12)	<0.001
20–34	8,003 (8.3)	3,668 (45.8)	1		1
35–49	40,299 (41.8)	19,326 (48.0)	1.06 (1.03–1.08)	<0.001	1.05 (1.03–1.08)	<0.001
50–64	38,400 (39.8)	19,059 (49.6)	1.09 (1.07–1.12)	<0.001	1.09 (1.06–1.12)	<0.001
≥65	4,267 (4.4)	2,599 (60.9)	1.34 (1.29–1.39)	<0.001	1.30 (1.26–1.35)	<0.001
Place of residence^a
Rural area	9,481 (9.8)	4,158 (43.9)	1		1
Small to medium-sized city	33,302 (34.5)	16,968 (51.0)	1.16 (1.13–1.19)	<0.001	1.18 (1.15–1.21)	<0.001
Metropolitan city	53,623 (55.6)	26,416 (49.3)	1.12 (1.10–1.15)	<0.001	1.14 (1.11–1.17)	<0.001
Income level^b
Low	43,647 (45.3)	20,956 (48.0)	1		1
Moderate low	26,454 (27.4)	12,553 (47.5)	0.99 (0.97–1.00)	0.153	0.99 (0.98–1.01)	0.484
Moderate high	14,245 (14.8)	7,310 (51.3)	1.07 (1.05–1.09)	<0.001	1.06 (1.04–1.08)	<0.001
High	11,092 (11.5)	6,160 (55.5)	1.16 (1.14–1.18)	<0.001	1.12 (1.10–1.15)	<0.001
Charlson comorbidity index
Score 0	42,088 (43.6)	20,851 (49.5)	1		1
Score 1	32,208 (33.4)	15,698 (48.7)	0.98 (0.97–1.00)	0.026	0.98 (0.97–1.00)	0.015
Score 2	14,116 (14.6)	6,947 (49.2)	0.99 (0.98–1.01)	0.554	0.98 (0.96–1.00)	0.079
Score 3 or more	8,027 (8.3)	4,068 (50.7)	1.02 (1.00–1.05)	0.047	0.99 (0.97–1.02)	0.523

Multivariable models adjust for all factors in the table. aRR, adjusted relative risk; CI, confidence interval; RR, relative risk. ^a33 individuals had missing data. ^b1001 individuals had missing data.