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Table 1 Summary of the subset of subjects included from the CFA cohort by food allergy

From: Exploration of parent-reported food allergy symptoms via breastmilk exposures and likelihood to develop tolerance

  Egg allergy (n = 620) Milk allergy (n = 589) Peanut allergy (n = 898)
Current (n = 484) Outgrown (n = 136) p-value Current (n = 451) Outgrown (n = 138) p-value Current (n = 873) Outgrown (n = 25) p-value
N (%)/Mean (SD) N (%)/Mean (SD) N (%)/Mean (SD) N (%)/Mean (SD) N (%)/Mean (SD) N (%)/Mean (SD)
Age (years) 4.9 ± 3.4 7.39 ± 3.6 < 0.0001 5.08 ± 3.8 7.62 ± 3.8 < 0.0001 6.02 ± 3.7 8.09 ± 4.4 0.006
Sex
 Male 336 (80%) 84 (20%) 0.08 290 (75%) 99 (25%) 0.128 593 (98%) 12 (2%) 0.035
 Female 146 (74%) 52 (26%)   158 (80%) 39 (20%)   278 (96%) 13 (4%)  
 Missing 2 (100%) 0 (0%)   3 (100%) 0 (0%)   2 (100%) 0 (0%)  
Maternal race
 White 402 (77%) 119 (23%) 0.262 385 (77%) 115 (23%) 0.525 749 (97%) 22 (3%) 0.567
 Other 67 (83%) 14 (17%)   56 (74%) 20 (26%)   104 (98%) 2 (2%)  
 Missing 15 (83%) 3 (17%)   10 (77%) 3 (23%)   20 (95%) 1 (5%)  
Household pet
 Yes 202 (75%) 69 (25%) 0.055 208 (76%) 65 (24%) 0.851 385 (97%) 11 (3%) 0.257
 No 277 (81%) 65 (19%)   239 (77%) 72 (23%)   479 (97%) 14 (3%)  
 Missing 5 (71%) 2 (29%)   4 (80%) 1 (20%)   9 (100%) 0 (0%)  
Household income (annual)
 < $100,000 200 (84%) 39 (16%) 0.008 194 (80%) 47 (20%) 0.049 307 (97%) 10 (3%) 0.551
 ≥ $100,000 275 (75%) 94 (25%)   249 (73%) 90 (27%)   552 (98%) 14 (2%)  
 Missing 9 (75%) 3 (25%)   8 (89%) 1 (11%)   14 (93%) 1 (7%)  
Parent-reported symptoms while breastfeeding
 Yes 60 (87%) 9 (13%) 0.058 119 (78%) 34 (22%) 0.682 50 (100%) 0 (0%)  
 No 424 (77%) 127 (23%)   332 (76%) 104 (24%)   823 (97%) 25 (3%)  
Multiple food allergies
 Yes 467 (78%) 134 (22%) 0.222 407 (76%) 131 (24%) 0.087 753 (97%) 23 (3%) 0.408
 No 17 (89%) 2 (11%)   44 (86%) 7 (14%)   120 (98%) 2 (2%)  
Eczema
 Yes (current or history) 404 (80%) 104 (20%) 0.199 355 (78%) 101 (22%) 0.474 688 (97%) 18 (3%) 0.555
 No 73 (74%) 26 (26%)   92 (75%) 31 (25%)   173 (97%) 6 (3%)  
 Missing 7 (54%) 6 (46%)   4 (40%) 6 (60%)   12 (92%) 1 (8%)  
Asthma
 Yes (current or history) 197 (75%) 66 (25%) 0.103 171 (74%) 60 (26%) 0.249 386 (97%) 11 (3%) 0.975
 No 287 (80%) 70 (20%)   279 (78%) 78 (22%)   485 (97%) 14 (3%)  
 Missing N/A N/A   1 (100%) 0 (0%)   2 (100%) 0 (0%)  
Allergic rhinitis
 Yes (current or history) 227 (74%) 81 (26%) 0.01 212 (72%) 84 (28%) 0.004 487 (98%) 11 (2%) 0.237
 No 255 (82%) 55 (18%)   239 (82%) 54 (18%)   384 (96%) 14 (4%)  
 Missing 2 (100%) 0 (0%)   N/A N/A   2 (100%) 0 (0%)  
  1. Italicized values statistically significant with p-value < 0.05