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Fig. 2 | BMC Anesthesiology

Fig. 2

From: Postoperative analgesia for pediatric craniotomy patients: a randomized controlled trial

Fig. 2

OR (95% CI) for the associations between factors and moderate-severe POPI (≥4). A multiple factor regression analysis was conducted including all factors with P < 0.2 in univariate logistic regression analysis results. Craniotomy site expressed different craniotomy approaches. Durations of surgery meant the length of operation. Remifentanil means the total amount of the use of remifentanil during anesthesia. The total amount of sevoflurane use is calculated based on the patients’ inhaled concentration and fresh gas flow and time. A total of 14 factors were included. For multiple groups of categorical variables, we chose one of them as the reference. So, we chose forehead in craniotomy site and placebo group in groups as reference. Age, occipital craniotomy, give fentanyl PCIA or NCIA, or give morphine PCIA or NCIA, were correlated risk factors of moderate-severe pain

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