Table 3. Proportion of typed samples by influenza B Ct-value among patients with SARI.

SARI Influenza B Ct-value	Typed n/N (%)	OR (95% CI)	p-value
30	154/173 (89.0)	Reference
31	22/29 (75.9)	0.4 (0.1–1.0)	0.057
32	12/14 (85.7)	0.7 (0.2–3.6)	0.707
33	11/12 (91.7)	1.4 (0.2–11.1)	0.776
34	17/20 (85.0)	0.7 (0.2–2.6)	0.594
35	19/24 (79.2)	0.5 (0.2–1.4)	0.175
36	17/29 (58.6)	0.2 (0.1–0.4)	0.000
37	8/15 (53.3)	0.1 (0.0–0.4)	0.001
38	7/23 (30.4)	0.1 (0.0–0.1)	0.000
39	5/46 (10.9)	0.0 (0.0–0.0)	0.000
40	8/63 (12.7)	0.0 (0.0–0.0)	0.000