Compared with placebo, pravastatin lowered cholesterol levels and prevented bad outcomes in both older and younger participants. For every 1000 older patients treated during the 6-year study, pravastatin prevented 45 deaths and 133 major coronary events, including heart attacks, strokes, severe chest pain episodes, and heart surgeries. For every 1000 younger patients, pravastatin prevented 22 deaths and 107 major coronary events over 6 years. Both older and younger participants were able to take pravastatin without frequent or severe side effects.