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Table 1 Respondent characteristics

From: Myeloproliferative neoplasms (MPNs) have a significant impact on patients’ overall health and productivity: the MPN Landmark survey

  MF (n = 207) PV (n = 380) ET (n = 226)
Median (range) age, y 66 (28–90) 64 (25–94) 62 (23–87)
Women, n (%) 112 (54) 237 (62) 163 (72)
Race,a n (%)    
 White 203 (98) 371 (98) 221 (98)
 Black or African American 2 (1) 3 (1) 2 (1)
 Asian 1 (<1) 4 (1) 2 (1)
 Unknown 1 (<1) 2 (1) 1 (<1)
Median (range) disease duration since diagnosis, y 4 (0–36) 7 (0–61) 7 (0–36)
Calculated prognostic risk score, n (%)    
 Low 9 (4) 26 (7) 46 (20)
 Intermediate-1 34 (16) 77 (20) 86 (38)
 Intermediate-2 84 (41) 62 (16) NAb
 High 63 (30) 101 (27) 35 (16)
 Missingc 17 (8) 114 (30) 59 (26)
Primary medical insurance, n (%)    
 Medicare 94 (45) 157 (41) 84 (38)
 Group commercial insurance 80 (39) 169 (45) 103 (46)
 Individual commercial insurance 14 (7) 25 (7) 18 (8)
 Medicaid or state assistance 1 (<1) 3 (1) 1 (<1)
 Tricare or VA benefit 6 (3) 4 (1) 8 (4)
 Medicare and group insurance through current/former employer 3 (1) 3 (1) 2 (1)
 Medicare and secondary/supplemental insurance 3 (1) 2 (1) 2 (1)
 Other 5 (2) 13 (3) 5 (2)
 Unknown 1 (<1) 2 (1) 0
Education, n (%)    
 No high school 1 (<1) 0 0
 Some high school 0 1 (<1) 1 (<1)
 High school graduate 17 (8) 33 (9) 20 (9)
 Technical postsecondary 7 (3) 11 (3) 11 (5)
 Some college 48 (23) 88 (23) 63 (28)
 Four-year college graduate 67 (32) 116 (31) 58 (26)
 Postgraduate degree 67 (32) 131 (35) 73 (32)
Household income, n (%)    
 ≤$15,000 6 (3) 12 (3) 9 (4)
 15,001–$25,000 9 (4) 21 (6) 9 (4)
 25,001–$35,000 19 (9) 22 (6) 11 (5)
 35,001–$50,000 17 (8) 37 (10) 22 (10)
 50,001–$75,000 34 (16) 62 (16) 35 (16)
 75,001–$100,000 47 (23) 53 (14) 60 (27)
 >$100,000 62 (30) 145 (38) 67 (30)
 Unknown 13 (6) 28 (7) 13 (6)
  1. ET = essential thrombocythemia; MF = myelofibrosis; NA = not applicable; PV = polycythemia vera; VA = Veterans Affairs
  2. aRespondents were allowed to give multiple answers regarding race; this table records only the first answer given by each respondent
  3. bRespondents with ET could receive prognostic risk scores of low, intermediate, or high; intermediate was not divided into intermediate-1 and -2
  4. cCalculated prognostic risk score missing because of unknown lab values for risk categorization