Figure 1.

Trajectories of health-related behaviors from 3 to 15 years of age: (a, Subjective health status) 1: getting worse health status, 2: getting better health status; (b, Vigorous physical activity) 1: increasing physical activity group, 2: slight decreasing physical activity group; (c, Sedentary lifestyle) 1: low sedentary lifestyle group, 2: high sedentary lifestyle group; (d, Cotinine) 1: low level of cotinine as secondhand smoking in childhood group, 2: high level of cotinine as secondhand smoking in childhood.