Table 2.
Descriptive characteristics of the study population according to selected socio-demographic variables, National Health Interview Surveys, 1987-1994.
| Characteristic | Number (%*) | Number (%*) | Estimated size of total | Estimated percentage of total | Univariate |
|---|---|---|---|---|---|
| of subjects | reporting | population reporting | population reporting | prevalence odds | |
| complication of | complication of | complication of medical care | ratio (95%) | ||
| medical care | medical care | (95% confidence interval)† | confidence interval† | ||
| Sex | |||||
| Male | 133,533 (42.61) | 1,467 (39.22) | 3,148,699 | 0.59 (0.55-0.62) | 1.00 |
| Female | 179,885 (57.39) | 2,273 (60.78) | 4,686,767 | 0.62 (0.59-0.65) | 0.98 (0.91-1.05) |
| Age, y | |||||
| 18-24 | 26,484 (8.45) | 137 (3.66) | 318,035 | 0.36 (0.30-0.42) | 1.00 |
| 25-34 | 54,177 (17.28) | 437 (11.68) | 964,060 | 0.52 (0.46-0.57) | 1.48 (0.21-1.80) |
| 35-44 | 58,533 (18.67) | 593 (15.86) | 1,234,644 | 0.59 (0.54-0.64) | 1.68 (1.37-2.05) |
| 45-54 | 47,343 (15.10) | 582 (15.56) | 1,202,700 | 0.64 (0.58-0.70) | 1.77 (1.45-2.16) |
| 55-64 | 46,321 (14.78) | 675 (18.05) | 1,402,819 | 0.67 (0.61-0.73) | 1.77 (1.46-2.14) |
| 65-74 | 46,266 (14.76) | 774 (20.70) | 1,577,256 | 0.70 (0.65-0.76) | 1.80 (1.48-2.18) |
| 75 and older | 34,314 (10.95) | 542 (14.49) | 1,135,952 | 0.63 (0.56-0.69) | 1.58 (1.30-1.93) |
| Race | |||||
| White | 264,759 (84.47) | 3,248 (86.84) | 6,964,509 | 0.62 (0.59-0.65) | 1.00 |
| Black | 40,936 (13.06) | 416 (11.12) | 681,855 | 0.49 (0.44-0.55) | 0.78 (0.70-0.88) |
| Other | 7,743 (2.47) | 76 (2.03) | 189,102 | 0.60 (0.46-0.75) | 0.98 (0.77-1.26) |
| Region | |||||
| Northeast | 60,690 (19.36) | 640 (17.11) | 1,301,268 | 0.54 (0.49-0.60) | 1.00 |
| Midwest | 79,717 (25.43) | 1,020 (27.27) | 2,063,524 | 0.65 (0.59-0.70) | 1.20 (1.06-1.37) |
| South | 107,068 (34.16) | 1,325 (35.43) | 2,844,560 | 0.62 (0.57-0.66) | 1.14 (1.01-1.29) |
| West | 65,963 (21.04) | 755 (20.19) | 1,626,114 | 0.60 (0.55-0.65) | 1.16 (1.02-1.31) |
| Education | |||||
| None | 2,338 (0.75) | 17 (0.46) | 36,156 | 0.34 (0.17-0.50) | 1.00 |
| Elementary | 38,727 (12.48) | 627 (16.86) | 1,253,608 | 0.65 (0.59-0.71) | 1.99 (1.20-3.31) |
| Some high school | 42,311 (13.63) | 626 (16.83) | 1,270,559 | 0.69 (0.63-0.75) | 2.19 (1.31-3.65) |
| High school graduate | 113,582 (36.60) | 1,304 (35.06) | 2,753,220 | 0.61 (0.57-0.65) | 1.95 (1.17-3.24) |
| Some college | 59,247 (19.09) | 643 (17.29) | 1,380,437 | 0.59 (0.54-0.64) | 1.90 (1.14-3.17) |
| College graduate | 30,244 (9.75) | 286 (7.69) | 631,982 | 0.56 (0.49-0.63) | 1.74 (1.04-2.92) |
| Post-graduate | 23,901 (7.70) | 216 (5.81) | 464,106 | 0.50 (0.44-0.57) | 1.56 (0.93-2.63) |
| Annual family income, | |||||
| × $1,000 | |||||
| less than 5 | 14,133 (5.39) | 209 (6.53) | 399,542 | 0.59 (0.50-0.68) | 1.00 |
| 5-14 | 58,044 (22.12) | 910 (28.42) | 1,840,201 | 0.65 (0.60-0.70) | 1.10 (0.92-1.31) |
| 15-24 | 54,733 (20.86) | 760 (23.74) | 1,593,795 | 0.70 (0.64-0.75) | 1.19 (1.01-1.40) |
| 25-34 | 42,195 (16.08) | 450 (14.05) | 976,522 | 0.60 (0.54-0.65) | 1.02 (0.85-1.22) |
| 35-44 | 30,964 (11.80) | 310 (9.68) | 676,843 | 0.59 (0.52-0.66) | 1.00 (0.83-1.22) |
| 45 and over | 62,295 (23.74) | 563 (17.58) | 1,225,607 | 0.54 (0.49-0.59) | 0.91 (0.76-1.09) |
| Major activity | |||||
| Work | 160,556 (51.22) | 1,320 (35.29) | 2,817,570 | 0.50 (0.47-0.54) | 1.00 |
| Housekeeping | 72,629 (23.17) | 1,094 (29.25) | 2,213,449 | 0.67 (0.63-0.71) | 1.25 (1.14-1.36) |
| School | 12,911 (4.12) | 94 (2.51) | 219,536 | 0.48 (0.37-0.59) | 0.95 (0.75-1.21) |
| Other | 67,342 (21.48) | 1,232 (32.94) | 2,584,911 | 0.73 (0.68-0.78) | 1.40 (1.28-1.53) |
| Health status | |||||
| Excellent | 63,171 (20.23) | 397 (10.65) | 864,061 | 0.45 (0.40-0.50) | 1.00 |
| Very good | 79,749 (25.54) | 581 (15.59) | 1,216,534 | 0.45 (0.41-0.49) | 0.98 (0.86-1.13) |
| Good | 92,786 (29.71) | 1,067 (28.64) | 2,201,757 | 0.60 (0.56-0.64) | 1.33 (1.17-1.50) |
| Fair | 51,499 (16.49) | 938 (25.17) | 1,949,144 | 0.72 (0.66-0.78) | 1.57 (1.37-1.80) |
| Poor | 25,092 (8.03) | 743 (19.94) | 1,571,466 | 0.87 (0.80-0.94) | 1.89 (1.64-2.17) |
* Figures are percentages of the total characteristic. † Figures take into consideration sampling weights due to complex sampling methodology.