The phrase "average number of months" is correct and usable in written English.
It can be used when discussing a statistical measure or calculation that involves the typical duration in months for a specific context, such as time spent on a project or duration of a subscription.
Example: "The average number of months for project completion is six, based on our recent data analysis."
Alternatives: "mean duration in months" or "typical number of months".
Women in rural southern Madagascar, where Nana is from, have the shortest average number of months — 24 — between pregnancies nationwide, and they typically start giving birth in their teens, according to official data.
In India, over the decade between 1999 and 2010, there was a decline in the average number of months for which all casual laborers were without work despite looking for it.
The average number of months between angiography and biochemical evaluation was 8.6±8.2, corresponding to the fact that a number of patients underwent coronary artery bypass surgery during that time interval.
The average number of months a client spent in the HC program during that year was 4.9 (SD 4.4).
The average number of months children had been at preschool interacting with the teacher was 8.08 months (SD = 3.54).
The average number of months since the last visit to a health professional was 15 months for males and 8 months for females.
The average number of continuous months in treatment was the same for both sexes; 42 months (SD = 24).
The average time at risk was calculated for each month based on the average number of previous months in which the herds were PRRS seronegative (i.e. classified as susceptible).
The average number of recurrences 12 months before implantation was 3 episodes per eye; of the 3 eyes followed up for more than 30 months, none had an inflammatory recurrence within 30 months after implantation.
In the intervention group, the average number of alcohol-free months was 0.89, almost twice as many as the control group (0.42).
In comparison to controls, patients in the living skin equivalent group had a higher average number of ulcer-free months (2.3 in the intervention group vs. 1.5 in the control group) and a lower average number of amputations or resections (5.4% in the intervention group vs. 12.5% in the control group).
