The phrase "and quantity of use" is correct and usable in written English.
It can be used when discussing the amount or frequency of usage of something, often in contexts related to consumption or application.
Example: "The study examined the effectiveness of the medication based on the dosage and quantity of use over a six-month period."
Alternatives: "and amount of usage" or "and level of consumption".
Specific provisions of legal cannabis legislation and regulation could influence cannabis initiation, frequency and quantity of use, and progression to cannabis use disorder.
Patients were asked a multitude of additional questions involving demographics, primary illnesses and symptoms treated with cannabis, frequency and quantity of use, favorite cannabis types and strains, methods of use, and prescription drugs substituted with cannabis.
Inherent toxicity and properties, frequency of use, and quantity of use are considered in the assignment of ratings for a given substance.
The findings for marijuana use were similar to those for smoking, indicating that the same underlying aetiological factors are responsible for initiation and quantity of use.
Individualised feedback includes evaluation of consumption patterns (e.g., frequency and quantity of use and binge-drinking) concerning various substances according to the answers given in the assessment part.
These papers used adult samples and, to our knowledge, no study has examined the relationship between initiation and quantity of use of cigarettes, alcohol or marijuana in adolescents.
Other outcomes include frequency of condom use, frequency and quantity of alcohol use, urine drug screen results for illicit substance use, and frequency of violent victimization (physical or sexual).
An adapted version of the Alcohol and Substance Use Inventory [ 21] was used to collect data on the frequency and quantity of substance use.
Frequency and quantity of snus use among current users was low.
These included questions on reasons, frequency and quantity of MNP use.
Smoking was assessed by asking the frequency and quantity of tobacco use [ 29].
