Table 2 Distribution of sensitization to common allergens in the latex and MDI subgroups according to duration of exposure
|  | Latex-exposed subjects (n = 184) | MDI-exposed subjects (n = 156) | P values | ||||
|---|---|---|---|---|---|---|---|
|  | All n = 184 | Latex sensitized+n = 145 (78.8%) | Latex non-sensitized n = 39 (21.2%) | All n = 156 | MDI sensitized+n = 20 (12.8%) | MDI non-sensitized n = 136 (87.2%) |  |
Age (mean); years | 32.5 | 31.6 | 35.8 | 41.4 | 41.5 | 41.4 | Â |
M/W | 18 /166 | 15 /130 | 3 /36 | 139 /17 | 15 /5 | 124 /12 | Â |
Exposure duration; mean (median) years | 11.4 (9) | 10.8 (9) | 13.6 (11) | 16.5 (14) | 16.8 (18) | 16.5 (13) | Â |
Exposure groups; n (%) | 168 (100) | 131 (78) | 37 (22) | 152 (100) | 19 (12.5)) | 133 (87.5) | Â |
Exposure = < 7 years | 62 (36.9) | 52/62 (83.9) | 10/62 (16.1) | 43 (28.3) | 2/ 43 (4.6) | 41/ 43 (95.4) |  |
7 years < exposure = < 15 years | 66 (39.3) | 53/66 (80.3) | 13/66 (19.7) | 39 (25.6) | 6/39 (15.4) | 33/39 (84.6) |  |
Exposure > 15 years | 40 (23.8) | 26/40 (65) | 14/40 (35) | 70 (46.1) | 11/70 (15.7) | 59/70 (84.3) |  |
Atopy category 1; n (%) | 75/184 (40.7) | 65/145 (44.8) | 10 /39 (25.6) | 54/156 (34.6) | 3/20 (15) | 51/136 (37.5) | ** |
Exposure = < 7 years | 23/62 (37.1) | 22/52 (42.3) | 1/10 (10) | 20/43(46.5) | 1/2 | 20/41 (48.8) |  |
7 years < exposure = < 15 years | 29/66 (43.9) | 25/53 (47.2) | 4/13 (30.7) | 15/39 (38.5) | 1 /6 | 14/33 (42.4) |  |
exposure > 15 years | 17/40 (42.5) | 12/26 (46.2) | 5/14 (35.7) | 17/70 (24.2) | 1/ 11 | 15/59 (25.4) |  |
Atopy category 2; n (%) | 46/184 (25.0) | 43/145 (29.7) | 3/39 (7.7) | 29/156 (18.6) | 0 | 29/136 (21.3) | *** |
exposure = < 7 years | 12/62 (19.3) | 12/52 (23.1) | 0/10 (0) | 10/43 (23.2) | - | 10/41 (24.4) |  |
7 years < exposure = < 15 years | 20/66 (30.3) | 19/53 (35.8) | 1/13 (7.7) | 9/39 (23.1) | - | 9/33 (27.2) |  |
Exposure > 15 years | 10/40 (25) | 8/26 (30.8) | 2/14 (14.3) | 7/70 (10) | - | 8/59 (13.6) |  |
Total IgE mean (median), kU/L # | 286.3 (105.7) | 334.3 (168) | 73.4 (29.3) | 171.6 (74) | 135.0 (77.3) | 176.5 (74) | Â |
Exposure = < 7 years | 329.7 (130.5) | 373.5 (169) | 101.7(23.2) | 187.3 (95.7) | 246.6 (246.6) | 184.1 (95.7) |  |
7 years < exposure = < 15 years | 264.3 (116) | 309.9 (165.5) | 81.7 (49.9) | 205.1 (69) | 97.7 (64.5) | 223.4 (70.3) |  |
Exposure > 15 years | 231.6 (91.4) | 329.3 (151.5) | 50.2 (33) | 118.0 (64.5) | 131.1 (88.4) | 115.5 (60) |  |
Total IgE elevated; n (%) | 94/182 (51.6) | 89/143 (62.2) | 5/39 (12.8) | 60/144 (41.8) | 9/19 (47.4) | 51/125 (40.8) | ** |
Exposure = < 7 years | 33/62 (53.2) | 32/52 (61.5) | 1/10 (10) | 19/40 (47.5) | 1/2 (50) | 18/38 (47.4) |  |
7 years < exposure = < 15 years | 36/65 (55.4) | 34/52 (65.4) | 2/13 | 14/34 (41.2) | 2/5 (40) | 12/29 (41.4) |  |
Exposure > 15 years | 18/40 (45) | 16/26 (61.5) | 2/14 | 25/68 (36.8) | 5/11 (45.4) | 20/57 (35.1) |  |