Table 2.
Patterns of participation in the Canadian National Population Health Survey over 10 years (1994/1995 -- 2002/2003).
| Cycle I | Cycle II | Cycle III | Cycle IV | Cycle V | Frequency | Percent (%) | |
|---|---|---|---|---|---|---|---|
| Participants with no missing values | 8210 | 56.75 | |||||
| Participants with one missing values | x | x | x | x | . | 2383 | 16.47 |
| x | x | x | . | x | |||
| x | x | . | x | x | |||
| x | . | x | x | x | |||
| . | x | x | x | x | |||
| Participants with two missing values | x | x | x | . | . | 1541 | 10.65 |
| x | x | . | x | . | |||
| x | x | . | . | x | |||
| x | . | x | . | x | |||
| x | . | . | x | x | |||
| . | x | x | x | . | |||
| . | x | x | . | x | |||
| . | x | . | x | x | |||
| . | . | x | x | x | |||
| x | . | x | x | . | |||
| Participants with three missing values | x | x | . | . | . | 1188 | 8.21 |
| x | . | . | . | x | |||
| . | . | . | x | x | |||
| x | . | x | . | . | |||
| . | x | x | . | . | |||
| . | . | x | x | . | |||
| x | . | . | x | . | |||
| . | x | . | . | x | |||
| . | . | x | . | x | |||
| Participants with four missing values | . | . | . | . | x | 1144 | 7.91 |
| x | . | . | . | . | |||
| . | x | . | . | . | |||
| . | . | x | . | . | |||
| . | . | . | x | . | |||
x -- indicates that mental distress was recorded at that time point.
. -- indicates that mental distress was missing at that time point.
*There are 247 observations with all missing values. The percentage is calculated with the total of 14466 instead of 14713 (based on the age group 15 years and over).