Table 1.
Characteristics of patients with diabetes identified by the checkbox, either identified or not identified using diagnosis codes and medication lists (excluding biguanides), from the combined datasets of the National Ambulatory Medical Care Survey (NAMCS) and the National Hospital Ambulatory Medical Care Survey (NHAMCS), 2006–2010
| Overall
|
Diabetes identified using diagnosis codes and medication lists
|
|||
|---|---|---|---|---|
| No. (S.E.), in 1,000s | Yes No. (S.E.), in 1,000s |
No No. (S.E.), in 1,000s |
Sensitivity | |
| Age, years | ||||
| 18–44 | 34,660 (2,169) | 22,994 (1,658) | 11,666 (1,041) | 66.3% (2.2%) |
| 45–64 | 121,600 (7,204) | 89,331 (5,486) | 32,269 (2,355) | 73.5% (1.1%) |
| 65–74 | 68,747 (3,558) | 51,689 (2,870) | 17,059 (1,193) | 75.2% (1.3%) |
| ≥75 | 66,915 (4,657) | 47,119 (3,187) | 19,795 (1,940) | 70.4% (1.6%) |
|
| ||||
| Sex | ||||
| Female | 158,882 (8,567) | 111,784 (6,024) | 47,098 (3,192) | 70.4% (1.0%) |
| Male | 133,040 (7,626) | 99,349 (5,948) | 33,692 (2,197) | 74.7% (0.9%) |
|
| ||||
| Race/ethnicity | ||||
| Non-Hispanic White | 196,060 (12,507) | 137,406 (8,999) | 58,654 (4,140) | 70.1% (0.9%) |
| Non-Hispanic Black | 42,065 (4,210) | 32,275 (3,311) | 9,790 (1,229) | 76.7% (1.8%) |
| Hispanic | 39,055 (4,904) | 30,251 (3,784) | 8,805 (1,428) | 77.5% (2.0%) |
| Others | 14,742 (1,897) | 11,202 (1,476) | 3,541 (615) | 76.0% (2.7%) |
|
| ||||
| Sources of payment | ||||
| Private | 113,091 (7,276) | 79,112 (5,379) | 33,979 (2,532) | 70.0% (1.3%) |
| Medicaid | 41,449 (3,203) | 31,071 (2,534) | 10,378 (922) | 75.0% (1.4%) |
| Medicare | 114,435 (7,287) | 83,215 (5,140) | 31,220 (2,563) | 72.7% (1.1%) |
| Self-pay | 8,086 (919) | 6,209 (829) | 1,877 (247) | 76.8% (2.9%) |
| Others | 7,808 (1,126) | 6,117 (911) | 1,691 (304) | 78.3% (2.5%) |
| Unknown | 7,053 (1,126) | 5,408 (916) | 1,644 (451) | 76.7% (5.0%) |
|
| ||||
| Region | ||||
| Northeast | 50,771 (6,473) | 37,048 (4,727) | 13,723 (1,946) | 73.0% (1.4%) |
| Midwest | 77,123 (8,478) | 55,252 (6,349) | 21,872 (2,375) | 71.6% (1.2%) |
| South | 112,496 (9,039) | 81,679 (6,427) | 30,818 (3,314) | 72.6% (1.5%) |
| West | 51,532 (6,623) | 37,154 (5,025) | 14,378 (1,791) | 72.1% (1.4%) |
|
| ||||
| Number of clinic visits in the past 12 months | ||||
| 0 (new patient) | 12,957 (1,078) | 9,969 (952) | 2,989 (404) | 76.9% (2.8%) |
| 1–2 | 60,092 (4,088) | 42,799 (2,989) | 17,293 (1,538) | 71.2% (1.5%) |
| 3–5 | 112,249 (6,877) | 83,885 (5,414) | 28,364 (2,061) | 74.7% (1.1%) |
| ≥6 | 106,625 (6,544) | 74,481 (4,870) | 32,143 (2,235) | 69.9% (1.2%) |
|
| ||||
| Number of diagnosis codes | ||||
| 1 | 50,547 (3,490) | 26,652 (2,238) | 23,895 (1,806) | 52.7% (2.0%) |
| 2 | 67,331 (4,145) | 47,748 (3,113) | 19,583 (1,593) | 70.9% (1.5%) |
| 3 | 174,045 (10,491) | 136,733 (8,023) | 37,311 (3,127) | 78.6% (1.0%) |
|
| ||||
| Number of medications | ||||
| 0–2 | 81,275 (5,667) | 46,628 (3,661) | 34,647 (2,660) | 57.4% (1.7%) |
| 3–5 | 84,719 (5,087) | 62,337 (3,887) | 22,382 (1,792) | 73.6% (1.4%) |
| 6–8 | 125,929 (8,049) | 102,168 (6,538) | 23,761 (1,958) | 81.1% (0.9%) |
|
| ||||
| Blood test for glucose ordered | ||||
| No | 221,248 (11,676) | 152,809 (8,212) | 68,439 (4,264) | 69.1% (0.9%) |
| Yes | 70,675 (5,410) | 58,324 (4,589) | 12,351 (1,170) | 82.5% (1.1%) |
|
| ||||
| Hemoglobin A1c ordered | ||||
| No | 213,479 (10,695) | 144,471 (7,234) | 69,007 (4,094) | 67.7% (0.8%) |
| Yes | 78,444 (6,415) | 66,662 (5,528) | 11,782 (1,396) | 85.0% (1.3%) |
|
| ||||
| Lipids/cholesterol ordered | ||||
| No | 218,534 (11,075) | 151,958 (7,837) | 66,576 (3,863) | 69.5% (0.8%) |
| Yes | 73,389 (5,357) | 59,175 (4,294) | 14,214 (1,552) | 80.6% (1.4%) |
|
| ||||
| Disposition | ||||
| Return at specific time | 213,369 (12,525) | 158,671 (9,282) | 54,698 (3,831) | 74.4% (0.8%) |
| Refer to other physician | 32,492 (2,288) | 23,991 (1,700) | 8,500 (937) | 73.8% (1.9%) |
| Refer to ER/Admit to hospital | 1,354 (343) | 931 (261) | -¶ | 68.8% (6.8%) |
| Other | 39,231 (3,096) | 23,619 (2,167) | 15,612 (1,376) | 60.2% (2.2%) |
| Missing | 5,477 (897) | 3,920 (712) | 1,557 (347) | 71.6% (4.7%) |
|
| ||||
| Survey | ||||
| NAMCS | 264,766 (15,479) | 191,973 (11,349) | 72,792 (4,866) | 72.5% (0.8%) |
| NHAMCS-OPD | 27,157 (2,639) | 19,160 (1,850) | 7,997 (938) | 70.6% (1.6%) |
|
| ||||
| Survey year | ||||
| 2006 | 49,945 (3,747) | 37,091 (2,781) | 12,854 (1,408) | 74.3% (1.8%) |
| 2007 | 52,725 (4,387) | 37,657 (3,258) | 15,068 (1,673) | 71.4% (2.0%) |
| 2008 | 59,889 (5,113) | 41,727 (3,733) | 18,163 (1,820) | 69.7% (1.7%) |
| 2009 | 70,850 (6,441) | 51,681 (5,154) | 19,169 (1,844) | 72.9% (1.7%) |
| 2010 | 58,514 (4,529) | 42,978 (3,588) | 15,536 (1,596) | 73.4% (1.9%) |
¶
Fewer than 30 observations or greater than 30% of relative standard error. The NCHS considers such estimates to be unreliable.
S.E.: standard error; ER: emergency room.