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Table 2 Emergency physicians’ knowledge of rare diseases

From: Poor education and urgent information need for emergency physicians about rare diseases in China

Items n %
Incidence of RD (in European Union criteria)  
 < 1: 1000 66 12.24%
 < 1: 2000 [19] 23 4.27%
 < 1: 10,000 259 48.05%
 I do not know 191 35.44%
Number of RDs in the world   
 600–800 93 17.25%
 6000–8000 [19] 115 21.34%
 60,000–80,000 18 3.34%
 I do not know 313 58.07%
Number of patients suffering from RD in China
 200,000 101 18.74%
 2,000,000 112 20.78%
 20,000,000 [7] 44 8.16%
 200,000,000 0 0%
 I do not know 282 52.32%
Is there any national register system for RD in China?
 Yes [7] 199 36.92%
 No 28 5.19%
 I do not know 312 57.88%
The exact number of RDs in the first list of rare diseases in 2018
 121 [17] 93 17.25%
 147 95 17.63%
 I do not know 351 65.12%
The percent of RDs with orphan drugs  
 0% 11 2.04%
 5% [5] 105 19.48%
 10% 41 7.61%
 20% 23 4.27%
 50% 6 1.11%
 I do not know 353 65.49%
Are all RDs hereditary?   
 Yes 30 5.57%
 No [13] 509 94.43%
The percentage of hereditary diseases among RDs  
 20% 100 18.55%
 50% 72 13.36%
 80% [13] 97 18%
 100% 2 0.37%
 I do not know 268 49.72%
The most common age of onset of RD  
 Neonatal period 45 8.35%
 Childhood [30] 147 27.27%
 Adulthood 37 6.86%
 Equal in all age groups 143 26.53%
 I do not know 167 30.98%
Have you first diagnosed an RD in a patient?   
 Yes 140 25.97%
 No 399 74.03%
How many RDs have you seen in your career? *  
 1 ~ 5 54 38.57%
 5 ~ 10 44 31.43%
 10 ~ 15 22 15.71%
 15 ~ 20 10 7.14%
 > 20 10 7.14%
  1. Correct answers are indicated in bold and bolditalics
  2. *This question was given to 140 respondents who first diagnosed an RD