# Graph description: Figure 3. Two trend analyses

Two scattter diagrams.

In each scatter diagram there are four points represented by circles of different sizes. The area of the circle is proportional to the number of subjects in the group.

The first scatter diagram is entitled "Linear". The horizontal axis is labeled "Number of antenatal visits" and the four divisions are labeled 0-4, 5-9, 10-14, and 15+. The vertical axis is labeled "Per cent in traditional model unit" and numbered 20, 30, 40, and 50. There are four points. The first point is a very small circle at number of visits = 0-4, per cent in traditional units = 37. The second point is a medium sized circle at number of visits = 5-9, per cent in traditional units = 32. The third point is a large circle at number of visits = 10-14, per cent in traditional units = 42. The fourth point is a medium circle at number of visits = 15+, per cent in traditional units = 46.

The second scatter diagram is entitled "Non-linear". The horizontal axis is labeled "Change in smoking habit" and the four divisions are labeled Quit, Cut down, Same, and More. The vertical axis is labeled "Per cent in motivational interviewing group" and numbered 20, 30, 40, and 50. There are four points. The first point is a very small circle at Change in smoking habit = Quit, Per cent in motivational interviewing group = 44. The second point is a very small circle at Change in smoking habit = Cut down, Per cent in motivational interviewing group = 37. The third point is a large circle at Change in smoking habit = Same, Per cent in motivational interviewing group = 48. The fourth point is a very small at Change in smoking habit = More, Per cent in motivational interviewing group = 30.