Table 1.

Baseline characteristics of general population and patients exposed to the IV ribavirin.

Characteristics	General population	Ribavirin user	Proportion (%)	PR (95% CI)	P
Sex					<0.001
Male	378,782	23,969	49.64	6.33 (6.25–6.41)
Female	422,885	24,318	50.36	5.75 (5.68–5.82)
Age					<0.001
18–24	195,723	9,372	19.41	4.79 (4.69–4.88)
25–29	152,251	9,387	19.44	6.17 (6.04–6.29)
30–34	143,073	10,800	22.37	7.55 (7.41–7.69)
35–39	153,259	10,353	21.44	6.76 (6.63–6.88)
40–44	157,361	12,644	26.19	8.04 (7.90–8.17)
Marital status					<0.001
Unmarried	110,067	9,808	20.31	8.91 (8.74–9.08)
Married	610,331	33,765	69.93	5.53 (5.47–5.59)
Divorced	5,388	360	0.75	6.68 (6.01–7.35)
Unknown	75,881	4,354	9.02	5.74 (5.57–5.90)
Education level					<0.001
<9 years	376,322	25,666	53.15	6.82 (6.74–6.90)
≥9 years	425,345	22,621	46.85	5.32 (5.25–5.39)
Occupation					<0.001
Workers	240,898	14,499	30.03	6.02 (5.92–6.11)
Students	22,250	3,766	7.80	16.93 (16.43–17.42)
Service staff	110,916	4,892	10.13	4.41 (4.29–4.53)
Civil servant	73,367	4,522	9.36	6.16 (5.99–6.34)
Unemployed	29,523	2,915	6.04	9.87 (9.53–10.21)
Farmer	66,220	6,724	13.93	10.15 (9.92–10.38)
Others	189,099	7,243	15.00	3.83 (3.74–3.92)
Unknown	69,394	3,726	7.72	5.3 7 (5.20-5.54)

Proportion: the denominator was the total number of IV ribavirin users (N = 48,289).

PR, prevalence rate, for which the denominator was the total number of general population.