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Table 4 EHR spirometry data (average FEV1) from RCT & EHR cohorts

From: Evaluation of the use of Swedish integrated electronic health records and register health care data as support clinical trials in severe asthma: the PACEHR study

RCT data per visit # N Mean Lower Upper
1 151 68.3 65.7 71.0
3 150 70.2 67.4 73.0
5 145 69.9 67.0 72.9
9 143 69.9 66.9 73.0
13 142 71.5 68.6 74.4
17 137 69.9 66.8 73.0
21 132 70.2 67.0 73.3
25 134 69.4 66.3 72.5
33 129 69.5 66.3 72.7
41 129 70.2 67.0 73.3
49 130 69.4 66.1 72.7
53 129 69.1 65.9 72.3
59 127 70.4 67.4 73.5
67 111 70.4 67.1 73.7
75 77 70.4 65.8 74.9
EHR data N Mean Lower Upper
Unweighted 74 78.2 72.7 83.7
Weighted 73 68.0 58.3 77.8