TABLE 2.
Multivariate Association of Consent to All Physical Measurements (Body Measurements, Saliva, and Blood) on Respondent Demographics, Health Status, Resistance Indicators, and Interviewer Characteristics (weighted; n=7,457).
| Covariates | Model 1 | Model 2 | Model 3 | Model 4 |
|---|---|---|---|---|
| Respondent Demographics |
OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) |
| Age | 1.00 (0.99–1.01) | 1.00 (0.99–1.01) | 0.99 (0.98–1.00) | 0.99 (0.98,1.00) |
| Gender | ||||
| Male | Referent | Referent | Referent | Referent |
| Female | 1.14 (0.98,1.32) | 1.13 (0.98,1.31) | 1.06 (0.90,1.24) | 1.05 (0.90,1.23) |
| Education | ||||
| 0–11 years | Referent | Referent | Referent | Referent |
| 12 years | 1.23 (1.00,1.50) | 1.13 (0.92,1.39) | 1.14 (0.91,1.43) | 1.13 (0.91,1.39) |
| 13+ years | 1.29 (1.03,1.63) | 1.15 (0.91,1.45) | 1.12 (0.88,1.43) | 1.12 (0.88,1.41) |
| Race | ||||
| White | Referent | Referent | Referent | Referent |
| Black | 0.67 (0.55,0.83) | 0.73 (0.59,0.89) | 0.83 (0.67,1.03) | 0.85 (0.69,1.04) |
| Other | 0.77 (0.57,1.02) | 0.78 (0.58,1.04) | 0.82 (0.62,1.10) | 0.82 (0.61,1.10) |
| Hispanic | ||||
| Yes | 1.39 (1.01,1.91) | 1.52 (1.11,2.07) | 1.46 (1.05,2.02) | 1.49 (1.05,2.13) |
| No | Referent | Referent | Referent | Referent |
| Frequency of religious service attendance |
||||
| At least once/week | 1.30 (1.08,1.57) | 1.20 (0.99,1.44) | 1.19 (0.99,1.43) | 1.19 (0.99,1.44) |
| Less than once/week | Referent | Referent | Referent | Referent |
| Number of eligible persons in household |
||||
| One | Referent | Referent | Referent | Referent |
| Two or more | 1.37 (1.14,1.65) | 1.34 (1.11,1.61) | 1.28 (1.06,1.55) | 1.28 (1.06,1.55) |
|
Health Status Indicators |
||||
| Perceived health Excellent |
Referent | Referent | Referent | |
| Very good | 0.97 (0.75,1.26) | 0.96 (0.74,1.25) | 0.96 (0.74,1.24) | |
| Good | 0.82 (0.61,1.10) | 0.84 (0.63,1.12) | 0.84 (0.63,1.13) | |
| Fair/poor | 0.77 (0.57,1.06) | 0.79 (0.57,1.09) | 0.80 (0.58,1.09) | |
| High blood pressure | ||||
| Yes No | 0.97 (0.83,1.13) | 0.97 (0.83,1.14) | 0.97 (0.83,1.14) | |
| Diabetes | Referent | Referent | Referent | |
| Yes | ||||
| No | 1.27 (1.08,1.50) | 1.27 (1.08,1.48) | 1.27 (1.09,1.48) | |
| Cancer (excl. skin) | Referent | Referent | Referent | |
| Yes | ||||
| No | 1.01 (0.83,1.23) | 0.98 (0.80,1.21) | 0.98 (0.79,1.21) | |
| Lung disease | Referent | Referent | Referent | |
| Yes | ||||
| No | 1.25 (0.98,1.59) | 1.22 (0.96,1.56) | 1.21 (0.95,1.54) | |
| Heart condition | Referent | Referent | Referent | |
| Yes | ||||
| No | 1.01 (0.85,1.21) | 0.97 (0.79,1.20) | 0.97 (0.80,1.16) | |
| Stroke | Referent | Referent | Referent | |
| Yes | ||||
| No | 0.85 (0.65,1.11) | 0.81 (0.62,1.06) | 0.81 (0.62,1.06) | |
| Arthritis | Referent | Referent | Referent | |
| Yes | ||||
| No | 1.18 (1.01,1.38) | 1.15 (0.98,1.35) | 1.14 (0.97,1.34) | |
| Pain limits activities | Referent | Referent | Referent | |
| Yes | ||||
| No | 0.97 (0.80,1.17) | 0.95 (0.77,1.17) | 0.95 (0.77,1.17) | |
| Performs mildly vigorous activities |
Referent | Referent | Referent | |
| At least once/week | ||||
| 1–3 times a month | Referent | Referent | Referent | |
| Hardly ever/never | 0.72 (0.54,0.96) | 0.73 (0.54,0.97) | 0.72 (0.54,0.97) | |
| Reported BMI | 0.70 (0.55,0.89) | 0.73 (0.57,0.93) | 0.73 (0.57,0.94) | |
| < 18.5 | ||||
| 18.5–24.9 | Referent 1.03 (0.57,1.86) |
Referent 1.14 (0.62,2.09) |
Referent 1.15 (0.62,2.11) |
|
| 25.0–29.9 | 1.06 (0.58,1.93) | 1.15 (0.62,2.14) | 1.16 (0.62,2.17) | |
| > 30 | 1.03 (0.57,1.89) | 1.13 (0.61,2.10) | 1.14 (0.61,2.12) | |
| Did not report BMI | 0.62 (0.31,1.25) | 0.75 (0.36,1.54) | 0.75 (0.36,1.55) | |
| Number of functional limitations (log scale) |
0.89 (0.80,1.00) | 0.89 (0.79,1.00) | 0.88 (0.79,1.00) | |
| Medicare enrollee | ||||
| Yes | 1.13 (0.92,1.38) | 1.09 (0.89,1.35) | 1.10 (0.89,1.35) | |
| No | Referent | Referent | Referent | |
| Number of doctor visits in past two years |
||||
| None | Referent | Referent | Referent | |
| One or more | 1.38 (1.08,1.77) | 1.36 (1.04,1.77) | 1.37 (1.06,1.76) | |
| Resistance Indicators | ||||
| Number of contact attempts in |
||||
| 2006 wave (log scale) | 0.86 (0.74,0.99) | 0.86 (0.74,0.99) | ||
| 2004 wave (log scale) | 0.89 (0.79,1.00) | 0.89 (0.80,0.99) | ||
| Interview mode (2004) | ||||
| Phone | 1.00 (0.83,1.21) | 1.01 (0.82,1.23) | ||
| Face-to-face Asked how long interview would last (2004) |
Referent | Referent | ||
| Never | ||||
| Seldom | Referent | Referent | ||
| Often | 0.87 (0.68,1.12) | 0.87 (0.69,1.11) | ||
| Asked about confidentiality (2004) |
0.63 (0.40,0.99) | 0.63 (0.40,0.98) | ||
| Never | ||||
| Seldom | Referent | Referent | ||
| Often | 0.72 (0.58,0.90) | 0.72 (0.58,0.90) | ||
| Respondent cooperation (2004) |
0.53 (0.26,1.08) | 0.53 (0.26,1.08) | ||
| Excellent | ||||
| Good | Referent | Referent | ||
| 0.70 (0.56,0.88) | 0.70 (0.56,0.87) | |||
| Fair/poor | 0.45 (0.27,0.76) | 0.45 (0.27,0.75) | ||
| Respondent enjoyment (2004) |
||||
| A great deal | Referent | Referent | ||
| Quite a bit | 1.00 (0.82,1.23) | 1.00 (0.82,1.23) | ||
| Some | 0.87 (0.68,1.10) | 0.87 (0.69,1.10) | ||
| A little/not at all | 0.67 (0.52,0.87) | 0.67 (0.52,0.86) | ||
| Elapsed time prior to consent request |
||||
| First quartile | Referent | Referent | ||
| Second quartile | 1.05 (0.83,1.32) | 1.06 (0.84,1.33) | ||
| Third quartile | 1.12 (0.85,1.48) | 1.14 (0.86,1.50) | ||
| Fourth quartile | 1.20 (0.89,1.61) | 1.21 (0.90,1.62) | ||
|
Interviewer Characteristics |
||||
| New hire | ||||
| Yes | 0.87 (0.59,1.29) | |||
| No | Referent | |||
| Age | 0.99 (0.98,1.00) | |||
| Gender | ||||
| Male | Referent | |||
| Female | 1.45 (0.98,2.14) | |||
| Race | ||||
| White/other | Referent | |||
| Black | 0.52 (0.39,0.69) | |||
| Hispanic | ||||
| Yes No | 1.01 (0.60,1.71) | |||
| Education | Referent | |||
| 12 years | ||||
| 13–15 years | Referent | |||
| 16+ years | 1.45 (0.81,2.57) | |||
| 1.42 (0.82,2.45) | ||||
| Interviewer variance | 1.73 (1.49,2.02) | 1.76 (1.51,2.06) | 1.74 (1.02,3.00) | 1.71 (1.27,2.31) |
Bold indicates statistically significant (P < 0.05).