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Companies might add something new to their annual reports: a rating of their workers’ health. A group of employers, including International Business Machines Corp., PepsiCo Inc. and Johnson & Johnson, are weighing how to publicly report—and measure—the health of their workforce. Such ratings would give shareholders, corporate directors, managers and consumers insight into a company’s commitment to improving employee health, and whether such efforts are getting results. Chronic illness, tobacco use and obesity can drive up a company’s medical costs, but a growing body of research suggests they can also affect productivity and performance. (Silverman, 1/26)