Table 2.
Linear regression model estimates of difference in DAS28-CRP3 compared to eating fish never to <1/month
| Frequency of fish consumption | |||||
|---|---|---|---|---|---|
|
| |||||
| Never to <1/month n=35 |
1/month to <1/week n=72 |
1/week n=38 |
≥2/week n=31 |
Difference in DAS28-CRP3 per 1 additional serving of fish/week+ | |
| Model adjusted for:* | β-coefficient (95% confidence interval) | β-coefficient (95% CI) | |||
| Age and sex | 0 (ref) | −0.32 (−0.73, 0.10) | −0.32 (−0.79, 0.15) | −0.65 (−1.15, −0.15) | −0.22 (−0.40, −0.04) |
| Age, sex, body mass index, depression, married | 0 (ref) | −0.23 (−0.62, 0.16) | −0.36 (−0.81, 0.08) | −0.49 (−0.97, −0.02) | −0.18 (−0.35, −0.004) |
| Age, sex, body mass index, depression, married, bDMARD, fish oil | 0 (ref) | −0.24 (−0.64, 0.15) | −0.39 (−0.85, 0.06) | −0.51 (−0.99, −0.02) | −0.18 (−0.35, −0.003) |
*
All models are adjusted for total energy intake. Covariates: age in decades, sex, body mass index in kg/m2 (<25, 25 to <30, ≥30), CES-Depression score (continuous), married (yes/no), biologic DMARD use (yes/no), fish oil supplement use (yes/no)
+
β-coefficient (95% CI) from linear regression models including a term representing the median frequency of fish consumption per week in each exposure group