Risk factors (odds ratios and 95% confidence intervals) for moderate hypoglycaemia (less than 2.0 mmol/l) adjusted for confounders by multiple logistic regression
| Exposure |
Risk factors for moderate hypoglycaemia (odds ratios and 95% CI) | Adjusted attributable risk fraction |
| Interval since last feed (hrs) | ||
| >3 hrs vs <3 | 1.47 (0.69–3.13) | 0.43 |
| 0–11.9 | 1.34 (0.56–3.26) | |
| 12–23.9 | 4.09 (1.45–11.53) | |
| 24–35.9 | 2.27 (0.43–12.07) | |
| 36–48 | — | |
| Gestation | ||
| post termvs term | 2.62 (1.00–6.86) | 0.075 |
| Parity | ||
| multiparatevs primiparate | 1.25 (0.67–2.34) | |
| Birthweight | ||
| <2.5 kg vs >2.5 kg | 2.11 (1.02–4.36) | 0.247 |
| Birth length (cm) | 1.17 (0.95–1.43) | |
| Head size (cm) | 0.59 (0.43–0.81) | |
| Rectal temperature | ||
| <36°C vs>36°C | 0.77 (0.37–1.62) | |
| Infant haemoglobin | ||
| >21 g/dl vs <21 g/dl | 2.77 (1.15–6.67) | 0.097 |
| Infant TSH (mU/l) | 1.02 (1.00–1.04) | |
| Infant free T4 (pmol/l) | 0.99 (0.95–1.02) | |
| Maternal TSH | ||
| >5 IU/l vs <5 IU/l | 3.08 (1.55–6.13) | 0.184 |
| Ambient temperature | ||
| <25°Cvs >25°C | 1.28 (0.64–2.58) | |
| Sex | 1.22 (0.69–2.17) | |
| Female vsmale |
Odds ratios represent the risk of moderate hypoglycaemia in the presence of the categorical variable or with a unit increase in the continuous variable. Those results shown in bold achieve statistical significance at the 5% level.