Sentence examples for baseline differences were controlled from inspiring English sources

After baseline differences were controlled, early angiography was associated with a reduction in all-cause long-term mortality (relative risk 0.63, 95% CI 0.53-0.74).

Nevertheless, the baseline differences were controlled by including the baseline characteristics as control variables in the data analyses.

There were some differences in baseline characteristics between the intervention and the control and these were included in an analysis which explored how the estimates of the treatment effect changed when baseline differences were controlled for.

Baseline group differences were controlled for using demographics and pretreatment physical health, mental health and drug abuse comorbidities in the repeated-measures analysis, which compared outcomes within-subjects during the pretreatment versus postindex claim 6-month periods.

First, use of matched comparison sites, rather than within-site randomization, made it less certain that the intervention and comparison groups were equivalent at baseline, although observed baseline differences were statistically controlled.

When controlling for hair color, no baseline differences were found between children in experimental and control schools on two of the three knowledge variables.

No baseline differences were identified between intervention and control groups.

At baseline, differences were detected between the intervention and control groups on a number of characteristics.

Few baseline differences were noted between the intervention and control arms (table 2).

Results After baseline differences between groups were controlled, the "angina clinic" conferred substantial improvement on patient symptom control (3-month benefit in angina frequency +9.4, P <.001; in angina stability +14.7, P <.001), treatment satisfaction (+8.6, P <.001), quality of life (+6.8, P <.001), and physical limitations resulting from coronary disease (+3.6, P =.047).

The estimated difference in proportions of chlamydia-positive samples in counties that used Abbott or Roche tests compared with counties that used the BD method was –9.5%95%95% CI –14.1 to –4.7, p = 0.0005), after baseline differences and county differences in testing were controlled for.