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. 2021 Feb 4;21:40. doi: 10.1186/s12911-021-01409-w

Table 4.

Average 911 calls and transports before and after first MIH visit, 2016–2018

Total sample (110) HF group (n = 45) LF group (n = 65)
N N N
Call data
Base calls 5.4 9.7 2.5
At 30 days 1.3 2.4 1.9
At 4 months 4.8 8.2 2.6
At 6 months 6.7 10.4 4.1
Transport data
Base transports 3.8 6.6 1.9
At 30 days 0.8 1.4 0.4
At 4 months 3.2 5.2 1.8
At 6 months 4.5 6.3 3.2

HF High frequency users, LF low frequency users