The phrase "additionally the duration of" is correct and usable in written English.
You can use it when you want to introduce extra information regarding the length of time something lasts or is expected to last.
Example: "Additionally, the duration of the project has been extended by two weeks to accommodate unforeseen delays."
Alternatives: "furthermore, the length of" or "in addition, the time span of".
Additionally, the duration of and reason for stay in the Netherlands varied, respondents lived in different regions of the country and had different educational backgrounds.
Additionally, the duration of dry spells in precipitation is important for streamflow drought duration.
Additionally, the duration of transgene expression was extended for surface-mediated delivery relative to bolus delivery.
Additionally, the duration of sensor data acquisition is approximately 45 min.
Additionally, the duration of IgM antibodies is not well documented.
Additionally, the duration of the biopsy was written down directly after the end of the procedure.
3 Additionally, for the duration of the study children were given access to medical consultations and essential drugs free of charge.
Additionally, since the duration of diabetes is a very important confounder for the association between HbA1c and low-grade albuminuria, it was taken into consideration by adjustment when estimating the OR as well as by stratification on this variable (duration of diabetes ≥5 and <5 years) in individuals with diabetes.
Additionally, for the duration of the study, no changes in thyroid status were observed (all patients were euthyroid at baseline), there were no changes in other anti-rheumatic medication (including steroids and hydroxychloroquine) or cardio/vasoactive therapy (including angiotensin-converting-enzyme (ACE) inhibitors).
Additionally, the duration (months) of breast-feeding was significantly lower in cases than in controls (2.1 ± 1.1 vs. 5.3 ± 2.6; P = 0.007), whereas its daily frequency was not different between groups (3.6 ± 1.2 vs. 4.8 ± 2.1, respectively; P = 0.122).
Additionally, we consider the duration of the workout-process in months (WOP).
