Selected characteristics of participants and serum IGF-I and IGFBP-3 concentrations (at baseline)
| . | n* . | IGF-I (ng/mL), mean (SD) . | IGFBP-3 (ng/mL), mean (SD) . | |||
|---|---|---|---|---|---|---|
| Age (y) | ||||||
| <55 | 108 (31%) | 231 (90) | 3,991 (811) | |||
| >55 | 236 (69%) | 175 (77) | 3,458 (854) | |||
| Gender | ||||||
| Male | 278 (81%) | 202 (82) | 3,586 (854) | |||
| Female | 66 (19%) | 153 (89) | 3,789 (946) | |||
| Race | ||||||
| White | 327 (96%) | 194 (85) | 3,637 (869) | |||
| Non-White | 13 (4%) | 169 (97) | 3,250 (1,009) | |||
| Education | ||||||
| <College | 94 (27%) | 187 (87) | 3,581 (937) | |||
| ≥College | 250 (73%) | 195 (85) | 3,642 (852) | |||
| Cigarette smoking | ||||||
| Never | 117 (34%) | 205 (91) | 3,716 (950) | |||
| Former | 191 (56%) | 191 (82) | 3,570 (813) | |||
| Current | 36 (10%) | 163 (82) | 3,622 (938) | |||
| Body mass index (kg/m2) | ||||||
| <28.7 | 171 (50%) | 193 (88) | 3,561 (876) | |||
| >28.7 | 171 (50%) | 193 (83) | 3,686 (876) | |||
| Waist/hip | ||||||
| <0.96 | 170 (50%) | 194 (26) | 3,656 (881) | |||
| >0.96 | 173 (50%) | 192 (83) | 3,595 (873) | |||
| Selenium levels (μmol/L) | ||||||
| <1.71 | 177 (51%) | 186 (84) | 3,529 (851) | |||
| >1.71 | 167 (49%) | 201 (86) | 3,727 (890) | |||
| NSAID use | ||||||
| Never | 143 (42%) | 201 (86) | 3,687 (843) | |||
| Former | 73 (21%) | 190 (89) | 3,724 (908) | |||
| Current | 125 (37%) | 186 (83) | 3,495 (891) | |||
| Total subjects | 344 | 193 (86) | 3,625 (875) | |||
| . | n* . | IGF-I (ng/mL), mean (SD) . | IGFBP-3 (ng/mL), mean (SD) . | |||
|---|---|---|---|---|---|---|
| Age (y) | ||||||
| <55 | 108 (31%) | 231 (90) | 3,991 (811) | |||
| >55 | 236 (69%) | 175 (77) | 3,458 (854) | |||
| Gender | ||||||
| Male | 278 (81%) | 202 (82) | 3,586 (854) | |||
| Female | 66 (19%) | 153 (89) | 3,789 (946) | |||
| Race | ||||||
| White | 327 (96%) | 194 (85) | 3,637 (869) | |||
| Non-White | 13 (4%) | 169 (97) | 3,250 (1,009) | |||
| Education | ||||||
| <College | 94 (27%) | 187 (87) | 3,581 (937) | |||
| ≥College | 250 (73%) | 195 (85) | 3,642 (852) | |||
| Cigarette smoking | ||||||
| Never | 117 (34%) | 205 (91) | 3,716 (950) | |||
| Former | 191 (56%) | 191 (82) | 3,570 (813) | |||
| Current | 36 (10%) | 163 (82) | 3,622 (938) | |||
| Body mass index (kg/m2) | ||||||
| <28.7 | 171 (50%) | 193 (88) | 3,561 (876) | |||
| >28.7 | 171 (50%) | 193 (83) | 3,686 (876) | |||
| Waist/hip | ||||||
| <0.96 | 170 (50%) | 194 (26) | 3,656 (881) | |||
| >0.96 | 173 (50%) | 192 (83) | 3,595 (873) | |||
| Selenium levels (μmol/L) | ||||||
| <1.71 | 177 (51%) | 186 (84) | 3,529 (851) | |||
| >1.71 | 167 (49%) | 201 (86) | 3,727 (890) | |||
| NSAID use | ||||||
| Never | 143 (42%) | 201 (86) | 3,687 (843) | |||
| Former | 73 (21%) | 190 (89) | 3,724 (908) | |||
| Current | 125 (37%) | 186 (83) | 3,495 (891) | |||
| Total subjects | 344 | 193 (86) | 3,625 (875) | |||
Number of subjects may not add up to 344 due to missing values for some variables.