Table 4.
Associations between higher adherence to dietary patterns and outcomes
| Dietary pattern | Outcome | Author | Sample size | Main finding | Measure of association |
|---|---|---|---|---|---|
| ‘profertility’ diet | Biochemical pregnancy | Gaskins (2019) [48] | 357 womena | + | adjusted proportion Q1-Q4 (95%CI): 0.46 (0.39–0.54), 0.53 (0.45–0.61), 0.65 (0.56–0.73), 0.68 (0.59–0.76) |
| Clinical pregnancy | Gaskins (2019) [48] | 357 womena | + | adjusted proportion Q1-Q4 (95%CI): 0.44 (0.33–0.48), 0.46 (0.38–0.54), 0.59 (0.50–0.68), 0.61 (0.52–0.69) | |
| Live birth | Gaskins (2019) [48] | 357 womena | + | adjusted proportion Q1-Q4 (95%CI): 0.33 (0.26–0.40), 0.32 (0.25–0.40), 0.48(0.39–0.57), 0.56 (0.47–0.64) | |
| aHEI-2010 | Biochemical pregnancy | Gaskins (2019) [48] | 357 womena | no appreciable association | adjusted proportion Q1-Q4 (95%CI): 0.62 (0.54–0.69), 0.59 (0.50–0.67), 0.53 (0.44–0.61), 0.54 (0.46–0.62) |
| Clinical pregnancy | Gaskins (2019) [48] | 357 womena | no appreciable association | adjusted proportion Q1-Q4 (95%CI): 0.55 (0.47–0.63), 0.51 (0.43–0.59), 0.50 (0.42–0.59), 0.45 (0.37–0.53) | |
| Live birth | Gaskins (2019) [48] | 357 womena | no appreciable association | adjusted proportion Q1-Q4 (95%CI): 0.44 (0.36–0.52), 0.42 (0.34–0.50), 0.40 (0.33–0.49), 0.37 (0.29–0.45) | |
| ‘Fertility Diet’ | Biochemical pregnancy | Gaskins (2019) [48] | 357 womena | no appreciable association | adjusted proportion Q1-Q4 (95%CI): 0.54 (0.46–0.62), 0.58 (0.50–0.66), 0.62 (0.53–0.69), 0.54 (0.45–0.63) |
| Clinical pregnancy | Gaskins (2019) [48] | 357 womena | no appreciable association | adjusted proportion Q1-Q4 (95%CI): 0.45 (0.41–0.56), 0.53 (45–0.60), 0.52 (0.44–0.61), 0.47 (0.39–0.56) | |
| Live birth | Gaskins (2019) [48] | 357 womena | no appreciable association | adjusted proportion Q1-Q4 (95%CI): 0.37 (0.30–0.45), 0.42 (0.35–0.50), 0.42 (0.34–0.50), 0.43 (0.34–0.52) | |
| ‘health-conscious low processed’ | Biochemical pregnancy | Vujkovik (2010) [54] | 161 couples | – |
adjusted OR (95% CI) (ref not stated) (value provided to one decimal place in article): 0.8 (0.6–1.0) |
| Dutch ‘preconception’ diet | Clinical pregnancy | Twigt (2012) [53] | 199 women | + | adjusted OR (95% CI): 1.65 (1.08–2.52) |
| ‘vegetable and Seafood’ | Clinical pregnancy | Sugawa (2018) [51] | 140 women | no appreciable association | adjusted OR Q1-Q4 (95%CI): 1.00 (ref) 0.46 (0.14–1.53), 0.42 (0.13–1.43), 0.90 (0.30–2.69) |
| ‘Western’ | Clinical pregnancy | Sugawa (2018) [51] | 140 women | no appreciable association | adjusted OR Q1-Q4 (95%CI): 1.00 (ref) 1.90 (0.58–6.24), 1.38 (0.41–4.61), 0.84 (0.23–3.11) |
| ‘rice and miso soup’ | Clinical pregnancy | Sugawa (2018) [51] | 140 women | no appreciable association | adjusted OR Q1-Q4 (95%CI): 1.00 (ref), 1.78 (0.58–6.77), 1.98 (0.58–6.77), 0.72 (0.18–2.93) |
+ = positive association
- = negative association.
a sample contributed 608 ART ‘cycles’ and adjustments were made for unbalanced study design (different number of cycles contributed per woman)