Table 3 Stratified analysis of uric acid and infertility risk based on age, marital status, BMI, and database year.
From: Elevated serum uric acid is associated with infertility in women living in America
Stratified factor | N | Q1 | Q2 OR (95% CI) | P | Q3 OR (95% CI) | P | Q4 OR (95% CI) | P |
|---|---|---|---|---|---|---|---|---|
Age (years) | ||||||||
≤ 35 | 1135 | Ref | 1.63 (0.86, 3.09) | 0.132 | 2.01 (1.07, 3.78) | 0.03 | 2.47 (1.29, 4.73) | 0.006 |
> 35 | 1062 | Ref | 1.04 (0.63, 1.73) | 0.873 | 1.59 (0.95, 2.63) | 0.075 | 1.44 (0.84, 2.47) | 0.191 |
Marital status | ||||||||
Married/Living with Partner | 1431 | Ref | 1.41 (0.88, 2.24) | 0.152 | 2 (1.25, 3.19) | 0.004 | 1.84 (1.12, 3.04) | 0.016 |
Widowed/Divorced/Separated | 278 | Ref | 0.9 (0.3, 2.7) | 0.852 | 1.16 (0.39, 3.48) | 0.793 | 2.07 (0.69, 6.24) | 0.196 |
Never married | 488 | Ref | 0.84 (0.28, 2.5) | 0.748 | 1.24 (0.43, 3.59) | 0.685 | 1.32 (0.45, 3.92) | 0.614 |
BMI | ||||||||
< 18.5 | 42 | Ref | – | – | – | – | – | – |
18.5–24.9 | 616 | Ref | 1.55 (0.81, 2.96) | 0.185 | 2.27 (1.13, 4.56) | 0.021 | 1.0043 (0.365, 2.7632) | 0.993 |
25–29.9 | 553 | Ref | 0.79 (0.33, 1.89) | 0.59 | 1.43 (0.61, 3.35) | 0.409 | 2.51 (1.08, 5.83) | 0.033 |
≥ 30 | 986 | Ref | 1.3 (0.66, 2.54) | 0.448 | 1.83 (0.98, 3.4) | 0.058 | 1.85 (1.01, 3.4) | 0.048 |
Database year | ||||||||
2013–2016 | 1266 | Ref | 1.54 (0.89, 2.67) | 0.123 | 2.25 (1.3, 3.87) | 0.004 | 2.08 (1.17, 3.69) | 0.013 |
2017-March 2020 pre-pandemic | 931 | Ref | 0.97 (0.54, 1.75) | 0.925 | 1.32 (0.74, 2.35) | 0.35 | 1.74 (0.95, 3.2) | 0.072 |
