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. 2018 Mar 14;18:179. doi: 10.1186/s12913-018-2983-3

Table 4.

Matching and placebo estimations

(1) (2) (3) (4)
Variables CEM 1 CEM 2 Placebo Placebo
CNI −0.0108* −0.0106* −0.0179** − 0.0075*
(0.005) (0.0054) (0.0085) (0.0043)
CNI x HighCNI 0.0195*** 0.0195*** 0.0232*** 0.0209***
(0.0029) (0.0030) (0.0036) (0.0040)
Placebo CNI −0.0106** −0.0017
(0.0049) (0.0011)
Placebo CNI x HighCNI 0.0045* 0.0041*
(0.0023) (0.0020)
Covariates No No No Yes
Observations 80,496 80,325 82,332 82,332
SAMS 8944 8925 9148 9148
R2 0.020 0.021 0.020 0.040

Note: Robust standard errors clustered by county council in parentheses. ***p < 0.01, ** p < 0.05, *p < 0.1. All specifications contain SAMS- and year fixed effects