Table 1.
Characteristics of Study Population
| Characteristic | Total (N = 5553) |
Testing at Clinical Laboratory | |
|---|---|---|---|
| CIDT (n = 1713) |
Stool Culture (n = 3840) |
||
| Age <18 y | 2862 (51) | 1052 (61) | 1810 (47) |
| Male sex | 2750 (49) | 836 (49) | 1914 (50) |
| Race/ethnicity | |||
| Whitea | 3357 (60) | 1137 (66) | 2220 (57) |
| Blacka | 731 (13) | 172 (10) | 559 (14) |
| Hispanicb | 267 (4) | 100 (6) | 167 (4) |
| Travel: yesc | 146 (3) | 42 (2) | 104 (2) |
| Hospitalization: yesd | 1272 (23) | 244 (14) | 1028 (27) |
| Out-of-state specimens | 500 (9) | 71 (4) | 429 (11) |
| Year of study | |||
| 2013 | 1403 (25) | 344 (20) | 1059 (27) |
| 2014 | 2119 (38) | 620 (36) | 1499 (39) |
| 2015 | 1598 (29) | 529 (31) | 1069 (28) |
| 2016 | 433 (8) | 220 (13) | 213 (6) |
Data are presented as No. (%). The percentages in the column are relative to total numbers given at the top of each column. All characteristics were statistically significantly different with P < .0 except that for sex and travel history.
Abbreviation: CIDT, culture-independent diagnostic test.
aTotal missing values: 1245 (22%), CIDT = 332 (19%), stool culture = 913 (23%); 220 (4%) were other races that included Asian, Pacific Islander, multirace, etc.
bTotal missing values: 1316 (24%), CIDT = 342 (20%), stool culture = 974 (25%).
cTotal missing values: 1763 (32%), CIDT = 478 (27%), stool culture = 1285 (33%).
dTotal missing values: 1159 (21%), CIDT = 297 (17%), stool culture = 862 (22%).