These analyses were repeated for abstention behavior and showed broadly similar results. The effect of female friends abstaining (42%, 95% CI: 9% to 84%) was about the same size as the effect of male friends abstaining (44%, 95% CI: -3% to 106%), though the latter was barely insignificant. Abstaining wives, on the other hand, did appear to exhibit somewhat more influence (74%, 95% CI: 40% to 115%) than husbands (56%, 32% to 82%), but the effect of a sister (28%, 95% CI: 13% to 45%) was actually somewhat weaker than the effect of a brother (39%, 95% CI: 19% to 60%). Once again, immediate neighbors and coworkers had no effect on a principal's drinking behavior with respect to abstention.
