Table 1 Definition of study outcomes

Menstrual health management (MHM)

Fertility awareness

Correct knowledge of the fertile period during the menstrual cycle

Awareness of 3 or more menstrual hygiene products

Knowledge of 3 or more menstrual hygiene management products from the following (tampons, menstrual cups, pads, reusable pads, etc.)

Use of sanitary menstrual hygiene products

Use of commonly available MHM products such as pads, menstrual cups, and tampons

Practised tracking their menstrual cycle

Actively keeping track of the menstrual cycle using a mobile app, calendar, or notebook

Attitude towards MHM

Cumulative score of belief on the following statements:

⋅ Getting your period is just part of being a woman

⋅ Getting your period is healthy

⋅ Your period blood is not dirty

⋅ You can attend school when you have your period

⋅ You can play sports when you have your period

⋅ A girl with her period can enter the kitchen

strongly agree = 5, agree = 4, neutral = 3, disagree = 2, strongly disagree = 1

Contraception

Comprehensive knowledge of OCP

Knowledge of the method, frequency of use, and where to get it

Comprehensive knowledge of condom

Awareness of the method, the knowledge that a condom can only be used once, and where to get them

Comprehensive knowledge of ECP

Awareness of the method, knowing that it can be used in a 72-h window after sex, and where to get them

Confident in negotiating contraception

Intent to negotiate for contraception use in future sexual acts

Agency

Intent to negotiate when and whom to marry

Intent to negotiate with parents timing and choice of partner for marriage

Attitude of refusing sex when not ready

Believe that a girl can refuse sex if she is not ready for it