Supplemental Table 4: Proxy Report Percentiles Based on Data Representative of the US Non-Institutionalized Population for PROMIS Pediatric Measures’ T-Scores where Higher Scores Correspond to Better Functioning,,,,,,,,,, Percentile,Family Relationships,Global Health,Life Satisfaction,Meaning and Purpose,Mobility,Physical Activity,Positive Affect,Peer Relationships,Upper Extremity,Percentile 1,35,28,28,30,32,22,26,25,25,1 2,37,33,29,33,36,22,30,26,26,2 3,37,33,32,34,37,25,32,29,29,3 4,38,34,34,35,38,30,34,31,31,4 5,39,35,35,36,40,33,36,33,33,5 6,40,35,35,37,41,34,36,34,34,6 7,40,36,36,38,42,36,36,35,35,7 8,41,36,37,38,43,37,36,35,35,8 9,42,37,37,39,43,38,37,36,36,9 10,42,37,38,40,44,38,37,36,36,10 11,43,37,39,41,44,39,38,36,36,11 12,43,38,39,41,44,39,39,38,38,12 13,43,39,39,41,45,40,39,38,38,13 14,44,39,39,42,46,40,40,39,39,14 15,44,39,40,42,47,41,41,39,39,15 16,44,40,40,42,47,41,42,40,40,16 17,45,40,41,43,47,41,42,40,40,17 18,45,41,41,43,47,42,42,41,41,18 19,45,42,41,43,47,42,43,42,42,19 20,45,42,42,44,47,42,43,42,42,20 21,45,42,42,44,47,42,44,42,42,21 22,45,43,43,44,47,42,44,43,43,22 23,45,43,43,45,48,43,44,43,43,23 24,46,43,43,45,50,43,44,43,43,24 25,46,44,44,45,52,43,45,43,43,25 26,46,44,44,45,61,44,45,44,44,26 27,46,44,44,45,61,44,45,44,44,27 28,46,45,44,45,61,44,46,44,44,28 29,46,45,44,46,61,44,46,44,44,29 30,47,45,44,46,61,45,46,44,44,30 31,47,45,45,46,61,45,46,45,45,31 32,47,45,45,47,61,45,46,45,45,32 33,47,45,45,47,61,45,47,45,45,33 34,48,46,46,47,61,45,47,46,46,34 35,48,46,46,47,61,46,47,46,46,35 36,48,46,46,47,61,46,47,46,46,36 37,48,46,46,48,61,46,48,46,46,37 38,48,46,46,48,61,46,48,46,46,38 39,48,46,47,48,61,47,48,47,47,39 40,49,47,47,48,61,47,49,47,47,40 41,49,47,48,48,61,47,49,47,47,41 42,49,47,48,49,61,47,49,47,47,42 43,49,47,48,49,61,47,49,47,47,43 44,49,47,48,49,61,47,49,47,47,44 45,49,48,48,50,61,48,49,48,48,45 46,50,48,49,50,61,48,49,48,48,46 47,50,48,49,50,61,48,49,49,49,47 48,50,48,49,50,61,48,49,49,49,48 49,50,49,49,51,61,48,49,49,49,49 50,50,49,50,51,61,48,49,49,49,50 51,51,50,50,51,61,49,49,49,49,51 52,51,50,50,52,61,49,49,49,49,52 53,51,50,50,53,61,50,49,50,50,53 54,51,51,51,53,61,50,49,50,50,54 55,51,51,51,53,61,50,49,51,51,55 56,51,51,51,53,61,51,49,51,51,56 57,51,51,51,53,61,51,49,51,51,57 58,51,52,52,53,61,51,49,51,51,58 59,51,52,52,54,61,51,49,52,52,59 60,51,52,52,54,61,51,50,52,52,60 61,52,53,52,54,61,51,51,52,52,61 62,52,53,53,54,61,52,51,54,54,62 63,52,53,53,54,61,52,51,54,54,63 64,52,54,55,54,61,53,52,55,55,64 65,53,54,55,54,61,53,52,55,55,65 66,53,54,55,54,61,53,52,56,56,66 67,53,55,55,60,61,54,53,56,56,67 68,53,55,55,60,61,54,53,56,56,68 69,53,55,56,60,61,54,53,56,56,69 70,53,55,56,60,61,54,54,62,62,70 71,53,56,61,60,61,55,54,63,63,71 72,54,56,62,60,61,55,55,63,63,72 73,54,57,62,60,61,55,55,63,63,73 74,55,57,62,60,61,56,55,63,63,74 75,55,57,62,60,61,56,56,63,63,75 76,55,57,62,60,61,56,56,63,63,76 77,55,57,62,60,61,57,57,63,63,77 78,55,57,62,60,61,57,57,63,63,78 79,55,57,62,60,61,57,58,63,63,79 80,55,57,62,60,61,57,59,63,63,80 81,55,57,62,60,61,57,59,63,63,81 82,55,58,62,60,61,58,59,63,63,82 83,55,58,62,60,61,58,60,63,63,83 84,58,59,62,60,61,58,60,63,63,84 85,59,59,62,60,61,58,61,63,63,85 86,59,59,62,60,61,59,62,63,63,86 87,59,59,62,60,61,59,62,63,63,87 88,59,59,62,60,61,61,63,63,63,88 89,59,60,62,60,61,61,64,63,63,89 90,59,60,62,60,61,62,67,63,63,90 91,59,61,62,60,61,62,67,63,63,91 92,59,61,62,60,61,63,67,63,63,92 93,59,61,62,60,61,64,67,63,63,93 94,59,63,62,60,61,66,67,63,63,94 95,59,63,62,60,61,67,67,63,63,95 96,59,63,62,60,61,68,67,63,63,96 97,59,64,62,60,61,70,67,63,63,97 98,59,65,62,60,61,74,67,63,63,98 99,59,65,62,60,61,74,67,63,63,99 Perecentile,Family Relationships,Global Health,Life Satisfaction,Meaning and Purpose,Mobility,Physical Activity,Positive Affect,,Upper Extremity,Percentile