TABLE 1.
Sociodemographic characteristics of HS patient visits from 2005 to 2016 in the NAMCS database.
| Characteristic | Overall visits Weighted n = 2 424 125 | Dermatology visits Weighted n, (%) = 678 576 (28.0) | Non‐dermatology visits Weighted n, (%) = 1 745 549 (72.0) | p‐value |
|---|---|---|---|---|
| Antibiotics, n (%) | ||||
| Prescribed | 1 165 189 (51.9) | 389 068 (57.3) | 776 122 (44.4) | 0.01 b |
| Not prescribed | 1 258 936 (48.1) | 289 508 (42.6) | 969 427 (55.6) | |
| Sex, n (%) | ||||
| Male sex | 685 335 (28.3) | 140 308 (20.7) | 545 027 (31.2) | 0.66 b |
| Female sex | 1 738 790 (71.7) | 538 268 (79.3) | 1 200 522 (68.8) | |
| Age, mean (SEM) years | 37.2 (1.8) | 36.5 (2.1) | 37.6.8 (2.3) | 0.57 a |
| Insurance, n (%) | ||||
| Private | 1 396 558 (57.6) | 429 344 (63.3) | 967 214 (55.4) | 0.43 b |
| Medicare | 224 717 (9.3) | 110 081 (16.2) | 114 636 (6.6) | |
| Self‐pay | 38 268 (1.6) | 9464 (1.4) | 28 804 (1.6) | |
| Medicaid or CHIP | 651 968 (26.9) | 128 966 (19.0) | 523 002 (30.0) | |
| Other unknown | 112 614 (4.6) | 721 (0.1) | 111 893 (6.4) | |
| Race/Ethnicity, n (%) | ||||
| White only | 1 580 236 (65.2) | 495 118 (73.0) | 1 085 118 (62.2) | 0.01 b |
| Black only | 641 718 (26.5) | 54 683 (8.1) | 587 035 (33.6) | |
| Hispanic | 169 413 (7.0) | 117 627 (17.3) | 51 885 (3.0) | |
| Other race/Multiple race | 32 758 (1.3) | 11 248 (1.6) | 21 511 (1.2) | |
| CCI, mean (SEM) | 0.4 (0.1) | 0.5 (0.1) | 0.35 (0.1) | 0.42 a |
| MSA status, n (%) | ||||
| Urban | 2 256 900 (93.1) | 678 576 (100.0) | 1 578 324 (90.4) | 0.05 b |
| Rural | 157 225 (6.9) | • (0.0) | 167 225 (9.6) | |
a
Analysis of variance of the differences among visits with HS patients of different ages and Charlson Comorbidity Indices (CCI).
b
X 2 test of the differences among visits with HS patients of different race/ethnicity, insurance, rural/urban status, and sex.