Table 4.

Predicted probabilities for being in a defined BMI category (normal weight, overweight, obese) based on multinomial regression in the 1940 cohort of men who “Eat Just What I Want,” Dallas, Texas, 1970-2006 (men = 8,885; observations = 17,304)

PA Level		Normal Weight		Overweight		Obese
	Age	Pred. Prob.	95% CIa	Pred. Prob.	95% CIa	Pred. Prob.	95% CIa
Inactive	30	0.77	0.81, 0.71	0.22	0.18, 0.27	0.02	0.01, 0.02
	50	0.45	0.48, 0.42	0.46	0.43, 0.48	0.09	0.08, 0.10
	70	0.15	0.20, 0.11	0.54	0.53, 0.54	0.31	0.27, 0.35
Moderate	30	0.82	0.85, 0.77	0.17	0.14, 0.21	0.01	0.01, 0.01
	50	0.56	0.59, 0.54	0.39	0.37, 0.40	0.05	0.05, 0.06
	70	0.25	0.30, 0.21	0.55	0.53, 0.57	0.19	0.17, 0.22
High	30	0.87	0.89, 0.83	0.13	0.10, 0.16	0.00	0.00, 0.01
	50	0.66	0.68, 0.64	0.31	0.29, 0.33	0.03	0.02, 0.03
	70	0.35	0.41, 0.29	0.52	0.48, 0.54	0.14	0.11, 0.17

^aThe 95% confidence intervals are based on robust, cluster, sandwich estimator for the standard error.

BMI, body mass index, PA, physical activity; Pred. Prob., predictive probability; CI, confidence interval.