Fig. 1

Observations over time of households with high positive net care attitude (score > 1.0) and exposure to SBC messages. Never–never = never high net care attitude, never exposed to SBC messages; never–once+ = never high net care attitude and SBC exposure at least once; once–any = high net care attitude at once and any SBC exposure (none or any); twice+-twice+ = high net care attitude twice or more, SBC exposure twice or more