Table 2.
The association of psychiatric disorders with different variables: severity of ID, gender, poverty level, and population group. Values are given for χ 2 statistics and their corresponding P values.
| Variable | N | N | χ 2 | P value | ||
|---|---|---|---|---|---|---|
| Severity of ID: SID versus MID | ||||||
| Psychiatric group** | SID | 32 | MID | 21 | 0.3* | .03 |
| Enuresis | SID | 20 | MID | 77 | 0.5 | .31 |
| Beh. problems | SID | 142 | MID | 72 | 1.3 | .25 |
| Epilepsy | SID | 59 | MID | 3 | 27.6 | <.001 |
| Gender: female versus male | ||||||
| Psychiatric group** | F | 24 | M | 28 | 0.2* | .54 |
| Enuresis | F | 16 | M | 11 | 1.7 | .13 |
| Beh. problems | F | 102 | M | 112 | 0.1 | .47 |
| Epilepsy | F | 20 | M | 42 | 7.4 | .005 |
| Poverty level: poor versus not poor (NP) | ||||||
| Psychiatric group** | P | 43 | NP | 10 | 0.1* | .91 |
| Enuresis | P | 25 | NP | 2 | 4.1 | .03 |
| Beh. problems | P | 165 | NP | 49 | 0.0 | .57 |
| Epilepsy | P | 47 | NP | 15 | 0.8 | .45 |
| Population group: tribal versus nontribal (NT) | ||||||
| Psychiatric group** | T | 32 | NT | 21 | 0.2* | .50 |
| Enuresis | T | 21 | NT | 6 | 7.2 | .006 |
| Beh. problems | T | 108 | NT | 106 | 4.1 | .03 |
| Epilepsy | T | 32 | NT | 30 | 0.1 | .43 |
*Chi-square statistic with the Yates correction.
**Psychiatric group comprises ADHD, autism, anxiety, bipolar affective disorder, delusional disorder, depression, obsessive-compulsive disorder, and schizophrenia.