Sentence examples for but this variable had from inspiring English sources
The questionnaire asked about the income status, but this variable had 13 missing values, as 26% of the patients did not respond.
Finally, we compared models with and without a variable indicating beta-blocker use because they are used for long QT syndrome (Shimizu and Antzelevitch 1998), but this variable had many missing values.
Archaeologists have previously proposed several different measures of flaked stone raw material "quality", but this variable has proven difficult to quantify, and the precise characteristics that improve performance remain unclear.
An AYA's primary care practitioner's (PCP) specialty likely influences referral patterns, but this variable has not been studied.
The association between wealth index and QoL is an inverted V-shape but this variable has no significant association with reported health status.
Previous studies were also unable to provide consensus on how perception of traffic was related to physical activity [ 5, 9, 23, 52, 53], but this variable has not been studied extensively.
Since there were six groups, this variable had six levels.
Increasing urbanization significantly raises notification rates, but including this variable has no impact on the DOTS coefficients.
This variable has the correct sign but is not statistically significant.
Obama's net approval rating is sitting at about zero, so this variable has little impact on the model.
