Table 3.
Stratified analyses for the association between SII and gallstones.
| Stratified variable | N | Q1 | Q2 | Q3 | Q4 |
|---|---|---|---|---|---|
| Ref | OR (95% CI) p-value |
OR (95% CI) p-value |
OR (95% CI) p-value |
||
| Gender | |||||
| Male | 2,318 | 1.0 | 1.50 (0.90, 2.49) | 0.95 (0.53, 1.70) | 1.58 (0.94, 2.66) |
| 0.120 | 0.857 | 0.084 | |||
| Female | 2,272 | 1.0 | 0.98 (0.66, 1.45) | 1.31 (0.91, 1.88) | 1.22 (0.84, 1.75) |
| 0.921 | 0.148 | 0.293 | |||
| Age (years) | |||||
| <50 | 2,420 | 1.0 | 1.64 (0.91, 2.98) | 2.43 (1.39, 4.26) | 2.97 (1.72, 5.16) |
| 0.101 | 0.002 | 0.0001 | |||
| ≥50 | 2,170 | 1.0 | 1.12 (0.77, 1.62) | 1.10 (0.76, 1.59) | 0.99 (0.68, 1.44) |
| 0.545 | 0.618 | 0.974 | |||
| BMI | |||||
| <25 (kg/m2) | 1,128 | 1.0 | 1.09 (0.48, 2.45) | 0.79 (0.32, 1.95) | 0.94 (0.39, 2.27) |
| 0.838 | 0.606 | 0.890 | |||
| ≥25 (kg/m2) | 3,462 | 1.0 | 1.16 (0.83, 1.62) | 1.38 (1.00, 1.90) | 1.44 (1.05, 1.99) |
| 0.386 | 0.053 | 0.024 | |||
| Race | |||||
| Mexican American | 558 | 1.0 | 0.75 (0.33, 1.68) | 0.73 (0.32, 1.67) | 0.82 (0.36, 1.90) |
| 0.482 | 0.455 | 0.649 | |||
| Other Hispanic | 449 | 1.0 | 1.80 (0.69, 4.68) | 1.46 (0.53, 4.03) | 1.06 (0.39, 2.91) |
| 0.227 | 0.468 | 0.907 | |||
| Non-Hispanic White | 1771 | 1.0 | 0.61 (0.36, 1.05) | 1.19 (0.75, 1.91) | 1.24 (0.78, 1.97) |
| 0.074 | 0.461 | 0.353 | |||
| Non-Hispanic Black | 1,149 | 1.0 | 1.98 (1.06, 3.70) | 1.78 (0.93, 3.43) | 1.59 (0.78, 3.24) |
| 0.033 | 0.082 | 0.202 | |||
| Other Race | 663 | 1.0 | 1.56 (0.69, 3.54) | 0.99 (0.41, 2.40) | 1.36 (0.59, 3.12) |
| 0.289 | 0.983 | 0.475 | |||
| Alcohol | |||||
| ≤2 drink/day | 3,719 | 1.0 | 1.19 (0.85, 1.67) | 1.36 (0.98, 1.88) | 1.50 (1.09, 2.06) |
| 0.300 | 0.063 | 0.013 | |||
| >2 drink/day | 871 | 1.0 | 1.26 (0.57, 2.79) | 1.45 (0.65, 3.24) | 1.28 (0.57, 2.90) |
| 0.569 | 0.365 | 0.546 | |||
| Smoke status | |||||
| Never | 2,533 | 1.0 | 1.11 (0.70, 1.75) | 1.44 (0.93, 2.23) | 1.79 (1.18, 2.73) |
| 0.652 | 0.100 | 0.007 | |||
| Former | 1,132 | 1.0 | 1.08 (0.63, 1.85) | 1.17 (0.69, 2.00) | 1.14 (0.67, 1.95) |
| 0.784 | 0.553 | 0.627 | |||
| Now | 925 | 1.0 | 1.52 (0.78, 2.99) | 1.43 (0.73, 2.81) | 1.12 (0.56, 2.22) |
| 0.222 | 0.294 | 0.754 | |||
| Diabetes | |||||
| Yes | 777 | 1.0 | 1.67 (0.93, 2.98) | 1.32 (0.73, 2.38) | 0.89 (0.48, 1.63) |
| 0.085 | 0.360 | 0.707 | |||
| No | 3,813 | 1.0 | 1.03 (0.71, 1.49) | 1.35 (0.95, 1.92) | 1.63 (1.16, 2.30) |
| 0.873 | 0.092 | 0.005 |
The results of stratified analysis were adjusted for Gender; Age (years); Race; Ratio of family income to poverty; Education; BMI; Energy (kcal); Total sugars (g), Total fat (g), Total moisture (g); Drinking; Smoking; Diabetes and Total cholesterol; 95% CI, 95% Confidence Interval; OR, Odds Ratio; BMI was categorized as no-obese (<25 kg/m2), and obese (≥25 kg/m2).