Table 5.

Attentiveness odds ratios toward vaccines at 5 major vaccine-related events.

Characteristic			Major vaccine-related events
			t1: July 14, 2020, attentiveness ORa (95% CI)		t2: August 12, 2020, attentiveness OR (95% CI)		t3: November 9, 2020, attentiveness OR (95% CI)		t4: December 15, 2020, attentiveness OR (95% CI)		t5: April 10, 2021, attentiveness OR (95% CI)
User type
	Individual	1 (refb)		1 (ref)		1 (ref)		1 (ref)		1 (ref)
	Organization	1.51 (1.20-1.89)		1.46 (1.22-1.76)		2.01 (1.70-2.39)		1.44 (1.28-1.61)		1.98 (1.79-2.19)
Gender
	Male	1 (ref)		1 (ref)		1 (ref)		1 (ref)		1 (ref)
	Female	0.75 (0.66-0.86)		0.79 (0.71-0.87)		0.66 (0.60-0.73)		0.82 (0.77-0.88)		0.61 (0.57-0.66)
Age (years)
	≤18	1 (ref)		1 (ref)		1 (ref)		1 (ref)		1 (ref)
	19-29	1.68 (1.55-1.82)		1.49 (1.42-1.56)		1.85 (1.78-1.93)		2.31 (2.23-2.39)		2.13 (2.05-2.20)
	30-39	3.55 (3.26-3.86)		2.31 (2.19-2.44)		4.48 (4.30-4.66)		4.39 (4.23-4.55)		5.22 (5.03-5.42)
	≥40	5.26 (4.89-5.67)		3.70 (3.53-3.87)		7.34 (7.08-7.60)		7.12 (6.90-7.35)		8.81 (8.53-9.10)
Occupation category (OC)
	OC1	1 (ref)		1 (ref)		1 (ref)		1 (ref)		1 (ref)
	OC2	0.52 (0.44-0.63)		0.62 (0.55-0.70)		0.66 (0.61-0.72)		0.52 (0.48-0.57)		0.59 (0.55-0.64)
	OC3	0.37 (0.30-0.44)		0.44 (0.39-0.49)		0.42 (0.39-0.46)		0.41 (0.38-0.45)		0.42 (0.39-0.45)
Account age (years)
	<5	1 (ref)		1 (ref)		1 (ref)		1 (ref)		1 (ref)
	5-10	1.31 (1.10-1.55)		1.34 (1.20-1.49)		1.67 (1.54-1.81)		2.28 (2.12-2.46)		2.25 (2.08-2.44)
	≥10	1.93 (1.54-2.40)		1.62 (1.40-1.87)		2.88 (2.62-3.17)		3.71 (3.40-4.04)		3.28 (3.01-3.58)
Follower number
	<500	1 (ref)		1 (ref)		1 (ref)		1 (ref)		1 (ref)
	500-5000	0.97 (0.82-1.14)		1.02 (0.92-1.13)		1.04 (0.96-1.13)		1.07 (0.99-1.14)		1.02 (0.95-1.10)
	≥5000	1.32 (1.00-1.74)		1.20 (1.00-1.44)		1.69 (1.48-1.92)		1.43 (1.27-1.61)		1.40 (1.23-1.59)

^aOR: odds ratio.

^bref: reference.