Table 1.
Characteristics of HCV-related ambulatory visits (NAMCS/NHAMCS-OPD combined)
| 1997–1999 N = 3,583,585 N (%) |
2000–2002 N = 5,875,678 N (%) |
2003–2005 N = 8,027,166 N (%) |
P-value | |
|---|---|---|---|---|
| Gender | ||||
| Female | 1,594,071 (44) | 2,020,134 (34) | 2,702,298 (34) | 0.46 |
| Male | 1,989,514 (56) | 3,855,544 (66) | 5,324,868 (66) | |
| Age | ||||
| 18–39 | 841,005 (23) | 1,210,659 (21) | 1,184,421 (15) | 0.83 |
| 40–59 | 2,302,117 (64) | 3,775,097 (64) | 5,459,966 (68) | |
| ≥60 | 440,463 (12) | 889,922 (15) | 1,382,779 (17) | |
| Race | ||||
| White | 3,015,711 (84) | 4,708,309 (80) | 5,339,075 (67) | 0.04 |
| Non-white | 567,874 (16) | 1,167,369 (20) | 2,688,091 (33) | |
| Insurance | ||||
| Private | 2,169,151 (60) | 3,029,322 (52) | 3,993,254 (50) | 0.21 |
| Medicare | 655,850 (18) | 773,304 (13) | 911,405 (11) | |
| Medicaid | 342,788 (10) | 1,048,284 (18) | 2,015,782 (25) | |
| Othera | 415,796 (12) | 1,024,768 (17) | 1,106,725 (14) | |
| Medicaid (vs. non-Medicaid) | 342,788 (10) | 1,048,284 (18) | 2,015,782 (25) | 0.07 |
| Diagnosis of HCV complicationsb | 199,785 (6)c | 314,129 (5) | 508,510 (6) | 0.92 |
| Prescription of anti-HCV meds | 247,138 (7)c | 565,892 (9.6) | 503,428 (6.3) | 0.76 |
| Primary care provider visitd | 1,502,684 (45) | 2,400,056 (43) | 3,466,357 (45) | 0.97 |
aIncludes self-pay/charity, workers comp, other, unknown and missing
bCirrhosis, ascites, esophageal varices or hepatocellular carcinoma
cLess than 30 visits, estimate not stable
d105 absolute visits missing this information = 929,107 weighted visits