THL is responsible for collecting and reporting statistics of Nollalinja.
An anonymous electronic service monitoring form is completed for the discussions had on Nollalinja. The Finnish Institute for Health and Welfare (THL) uses this anonymous monitoring to develop the operation of Nollalinja together with Setlementti Tampere, the producer of the service.
The service monitoring form is used to collect anonymous information on the role of the person who made contact, the forms, duration, occurrence and consequences of the violence they encountered, and their language, gender, age group, services used and assistance received. The person who made contact will not be interviewed during the contact. Instead, the Nollalinja employee enters the required information when it comes up in the conversation.
No personal details will be recorded in the form even if you mention them during the phone call. The telephone operator provides THL with information on the volume, times and durations of received and unanswered calls. THL also receives information on the volume of chat conversations and exchanged messages from the chat operator. The information collected about the calls and chat messages will be used in statistics, in the development services and in research.
Preliminary statistics for 2025: Number of clients in shelters for victims of domestic violence increased last year – more calls also made to Nollalinja helpline, THL 27.1.2026