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. 2015 Dec 15;9:1751–1761. doi: 10.2147/PPA.S91992

Table 2.

Returned participant study logs error typology

Error typea Returned logs
N=826
n %
White-outs, cross-offs and/or overwrites 489 59.2
Entries omitted (temperatures and/or before or after treatment times) 288 34.9
Morning leg skin temperature monitoring not performed 243 29.4
Cooling intervention not performed per protocol 237 28.7
Extraneous data recorded 221 26.8
Recorded cooling intervention time not per protocol (<30 or >40 minutes) 208 25.2
Wrong monthly/weekly sheet used 92 11.1
Suspected fabrication of data (patterns of columned handwriting, etc) 71 8.6
Not all monthly/weekly sheets returned 71 8.6
Illegible hand writing 68 8.2
Questionable validity of data (severely extreme values, etc) 63 7.6
Use of dittos or arrows 55 6.7
Data recorded in wrong box 38 4.6
Freezer temperature not maintained per protocol at 0°C (±2°C) 38 4.6
Monthly log returned but completely unusable 36 4.4
Weekly sheets returned in wrong order 29 3.5
Multiple data entry in the same box 17 2.1
Monthly logs returned blank 16 1.9

Note:

a

Error types are not mutually exclusive, therefore percentages do not sum to 100%.