N J Birkett

Effect of nondifferential misclassification on estimates of odds ratios with multiple levels of exposure.

N. Birkett, N J Birkett, 1992, American journal of epidemiology.

Does a mailed continuing education program improve physician performance? Results of a randomized trial in antihypertensive care.

R B Haynes, D L Sackett, D. Sackett, 1986, JAMA.

Predicting exercise stage transitions over two consecutive 6-month periods: a test of the theory of planned behaviour in a population-based sample.

K. Courneya, R. Plotnikoff, N. Birkett, 2001, British journal of health psychology.

The effect of alternative criteria for hypertension on estimates of prevalence and control

N J Birkett, Nicholas J. Birkett, 1997, Journal of hypertension.

Adaptive allocation in randomized controlled trials.

N. Birkett, N J Birkett, 1985, Controlled clinical trials.

Validation of a food habits questionnaire: poor performance in male manual laborers.

N. Birkett, J. Boulet, N J Birkett, 1995, Journal of the American Dietetic Association.