bobcat2
Ничего удивительного — в цитируемом мной исследовании пациенты отбирались и по другим критериям, например, исключались ПИНы, а в выводах дополнительно подчеркивается «…Caution is required in interpreting this due to a number of likely confounders; inclusion of people willing to take part in a clinical trial and who have achieved a CD4 count >500 cslls/µL may select for persons with better health-seeking and intervention-adherent behavior but, as people with HIV have different rates of smoking and other risk factors, confounding could result in bias in either direction.»Сообщение от bobcat2