Treatment

A scatterplot containing Rating Scale, Interview, and Both data. The X axis is labeled with the following dates: 1985, 1989, 1991, 1992, 1993, 1995, 1996, 1997, and 1998. The Y axis is titled “Prevalence” and ranges from 0 to 30 in increments of 5.

The data for Rating Scale is fairly consistent over time and forms a wide band from a prevalence rate from 4 to 18. The highest point is in 1995 at 17.8 and the lowest point is in 1993 at 3.9. This measurement type had more high prevalence rates than the other two measurement types.

The data for Interview shows a general decrease in prevalence over time. The highest and lowest points were in 1993 at 12.8 and 0.4. After 1993 the scores are more commonly around 5 or lower.

The data for Both shows a general decline in prevalence over time after a peak in 1991 at 29.2. The lowest point is in 1997 at 2.4.

The following table represents the approximate data that displays for this graph. [Note that there are multiple prevalence rates reported for some of the years.]

Measurement Prevalence Rates
YearRatingInterviewBoth
1985No data4, 5.8, 129.5
19895.8, 8.6No dataNo data
199116.6No data5.2, 11.2, 29.2
19927.13.9, 9.1No data
19933.9, 9.90.4, 2.8, 3, 6, 8.9, 12.8No data
19956.4, 10.9, 17.8No dataNo data
19967.3, 11.42.2, 4.52.8, 4, 6.1
1997No data1.3, 1.82.4
19986.8, 16.10.6, 6.6, 9.9No data
Location: None, Gender: None, Measurement: All, Rater: None
Prevalence
MEASUREMENT: - Rating Scale
- Interview   - Both