|  | Sum of Squares | Mean square | F | p |
---|---|---|---|---|---|
Marital status | Among groups | 2275.53 | 568.88 | 2.85 | 0.023 |
 | Within-group | 162,276.09 | 199.85 |  |  |
 | Total | 164,551.62 |  |  |  |
Educational level | Among groups | 3223.394 | 644.68 | 3.24 | 0.007 |
 | Within-group | 161,328.22 | 198.93 |  |  |
 | Total | 164,551.62 |  |  |  |
Types of drug use | Among groups | 3638.20 | 727.64 | 3.67 | 0.003 |
 | Within-group | 160,913.42 | 198.41 |  |  |
 | Total | 164,551.62 |  |  |  |