Table 4.
Subgroup analysis of association between fiber intake and nonfatal cardiovascular/cerebrovascular events.
| OR (95%CI) | p for interaction | |
|---|---|---|
| Stratified by age | 0.6653 | |
| Age <60 (n = 5,964) | 0.98 (0.96, 1.01) | |
| Age≥60 (n = 2,908) | 0.99 (0.97, 1.00) | |
| Stratified by sex | 0.9767 | |
| Male (n = 4,370) | 0.98 (0.96, 1.00) | |
| Female (n = 4,502) | 0.98 (0.96, 1.00) | |
| Stratified by race | 0.8813 | |
| Mexican American (n = 1,129) | 0.98 (0.95, 1.01) | |
| Other races (n = 2,248) | 0.98 (0.95, 1.02) | |
| Non-hispanic White (n = 3,545) | 0.98 (0.96, 1.00) | |
| Non-hispanic Black (n = 1,950) | 0.99 (0.96, 1.01) | |
| Stratified by marital status | 0.7917 | |
| Married/Living with partner (n = 5,228) | 0.97 (0.96, 0.99) | |
| Widowed/ Divorced/ Separated (n = 1,936) | 0.99 (0.96, 1.02) | |
| Never married (n = 1,708) | 0.98 (0.95, 1.01) | |
| Stratified by educational level | 0.9634 | |
| < High school (n = 1,738) | 0.98 (0.96, 1.01) | |
| High school (n = 1,944) | 0.98 (0.95, 1.00) | |
| >High school (n = 5,190) | 0.98 (0.96, 1.00) | |
| Stratified by PIR | 0.3615 | |
| <1.2 (n = 2,442) | 0.99 (0.96, 1.01) | |
| ≥1.2 (n = 6,430) | 0.98 (0.96, 0.99) | |
| Stratified by BMI | 0.4485 | |
| <25 kg/m2 (n = 2,554) | 0.98 (0.96, 1.01) | |
| 25–30 kg/m2 (n = 2,874) | 0.97 (0.94, 0.99) | |
| ≥30 kg/m2 (n = 3,444) | 0.99 (0.96, 1.01) | |
| Stratified by smoke | 0.2253 | |
| Yes (n = 546) | 0.98 (0.94, 1.03) | |
| No (n = 583) | 0.95 (0.90, 0.99) | |
| Unknown (7,743) | 0.98 (0.97, 1.00) | |
| Stratified by vigorous activity | 0.9716 | |
| Yes (n = 1,840) | 0.98 (0.95, 1.01) | |
| No (n = 7,032) | 0.98 (0.96, 1.00) | |
| Stratified by diabetes | 0.9645 | |
| Yes (n = 1,143) | 0.98 (0.96, 1.00) | |
| No (n = 7,499) | 0.98 (0.96, 1.00) | |
| Borderline (n = 230) | 0.97 (0.90, 1.05) | |
| Stratified by hypertension | 0.0364 | |
| Yes (n = 3,228) | 0.99 (0.97, 1.01) | |
| No (n = 5,644) | 0.96 (0.94, 0.98) | |
| Stratified by hypercholesteremia | 0.0692 | |
| Yes (n = 3,107) | 0.99 (0.97, 1.01) | |
| No (n = 5,765) | 0.96 (0.94, 0.99) | |
| Stratified by sleeping disorder, n (%) | 0.4559 | |
| Yes (n = 2,403) | 0.99 (0.96, 1.01) | |
| No (n = 6,469) | 0.97 (0.95, 1.00) |
The results of the subgroup analysis were adjusted for all covariates (age; sex; race; marital status; educational level; PIR; BMI; smoking status; systolic blood pressure; diastolic blood pressure; glucose, cholesterol, triglyceride, HDL, and glycohemoglobin levels; energy intake; vigorous activity; diabetes; hypertension; hypercholesterolemia; sleeping disorder; and hypoglycemic, antihypertensive, lipid-lowing, and aspirin drugs), except for the corresponding subgroup variables.
PIR, poverty to income ratio; BMI, body mass index; OR, odds ratio; 95% CI, 95% confidence interval.