Research Article
Common Dermatoses in Children Referred to a Specialized Pediatric Dermatology Service in Mexico: A Comparative Study between Two Decades
Table 2
Most frequent dermatoses by age group.
| | Diagnosis | 1971–1975
N (%) | 1994–2003
N (%) | P |
| | Newborns (<1 month) | | | | | Miliaria | 13 (22.4) | 10 (18.5) | 0.10 | | Hemangioma | 4 (6.9) | 7 (12.9) | 0.38 | | Lymphatic malformations | NR | 6 (11.1) | — | | Melanocytic nevi | 2 (3.4) | 3 (5.6) | 0.58 | | Impetigo | NR | 2 (3.7) | — | | Seborrheic dermatitis | 7 (12.0) | 2 (3.7) | 0.23 | | Epidermal cyst | NR | 2 (3.7) | — | | Postinflammatory hyperpigmentation | NR | 2 (3.7) | — | | Vascular malformations | NR | 2 (3.7) | — | | Mongolian spot | NR | 2 (3.7) | — | | Infants (1–12 months) | | | | | Atopic dermatitis | 76 (13.2) | 89 (20.5) | <0.01 | | Hemangioma | 121 (9.0) | 57 (13.2) | 0.01 | | Miliaria | 120 (9.0) | 42 (9.7) | 0.16 | | Diaper rash | 133 (10.0) | 23 (5.3) | <0.01 | | Seborrheic dermatitis | 56 (4.2) | 20 (4.6) | 0.71 | | Vascular malformations | NR | 16 (3.7) | — | | Scabies | 215 (16.1) | 10 (2.3) | <0.01 | | Neurofibromatosis | NR | 9 (2.1) | — | | Candidiasis | 24 (1.8) | 9 (2.1) | 0.71 | | Nevus anemicus | NR | 8 (1.8) | — | | Toddlers (12–24 months) | | | | | Atopic dermatitis | 160 (12.0) | 114 (22.4) | <0.01 | | Seborrheic dermatitis | NR | 48 (9.4) | — | | Miliaria | 35 (2.6) | 33 (6.5) | <0.01 | | Diaper rash | 51 (3.8) | 29 (6.9) | 0.01 | | Papular urticaria | 457 (34.2) | 22 (5.2) | <0.01 | | Hemangioma | 29 (2.1) | 22 (5.2) | <0.01 | | Xerosis | NR | 13 (2.6) | — | | Urticaria | NR | 11 (2.2) | — | | Insect bites | NR | 9 (1.8) | — | | Vascular malformations | NR | 9 (1.8) | — | Prescholars
(24 months–6 years) | | | | | Atopic dermatitis | 448 (15.4) | 287 (19.9) | <0.01 | | Xerosis | NR | 80 (5.6) | — | | Warts | 139 (4.8) | 67 (4.7) | 0.82 | | Papular urticaria | 735 (25.3) | 65 (4.5) | <0.01 | | Melanocytic nevi | NR | 49 (3.4) | — | | Pityriasis alba | 182 (6.2) | 46 (3.2) | 0.05 | | Postinflammatory hyperpigmentation | NR | 32 (2.2) | — | | Alopecia areata | NR | 30 (2.1) | — | | Miliaria | NR | 27 (1.9) | — | | Vitiligo | 52 (1.8) | 36 (1.8) | 0.99 | | Scholars (>6–12 years) | | | | | Atopic dermatitis | 432 (11.7) | 262 (13.7) | 0.37 | | Warts | 480 (13.0) | 199 (7.7) | <0.01 | | Pityriasis alba | 381 (10.3) | 112 (5.9) | <0.01 | | Melanocytic nevi | NR | 94 (4.9) | — | | Xerosis | NR | 84 (4.4) | — | | Keratosis pilaris | NR | 84 (4.4) | — | | Scars | NR | 42 (2.2) | — | | Alopecia areata | NR | 41 (2.1) | — | | Postinflammatory hyperpigmentation | NR | 38 (2.0) | — | | Papular urticaria | 358 (9.7) | 35 (1.8) | <0.01 | Adolescents
(>12–18 years) | | | | | Acne | 244 (15.9) | 298 (17.8) | 0.15 | | Warts | 190 (12.4) | 129 (7.7) | <0.01 | | Atopic dermatitis | 174 (11.5) | 127 (7.6) | <0.01 | | Keratosis pilaris | 34 (2.2) | 77 (4.6) | <0.01 | | Pityriasis alba | 127 (8.3) | 76 (4.5) | <0.01 | | Melanocytic nevi | NR | 75 (4.5) | — | | Scars | NR | 38 (2.3) | — | | Dermatophytosis | 29 (1.9) | 36 (2.2) | 0.59 | | Xerosis | NR | 33 (2.0) | — | | Onychomycosis | NR | 33 (2.0) | — |
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N: number of patient referrals; NR: not reported; —: not estimable.
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