Early detection of depression and associated risk factors in adults with mild/moderate intellectual disability.

Fullana et al. (2007) gave a short survey to the adults with mild or moderate intellectual disability. They asked about sad mood, self-esteem, life events, social support, and automatic negative thoughts.

The team used simple self-report scales that read at a third-grade level. Most clients finished in 20 minutes with staff help.

Thirty-nine percent scored above the cut-off for likely depression. Automatic negative thoughts, low self-esteem, poor social support, and recent bad life events explained 58 percent of the difference in mood scores.

In plain numbers: if a client often thinks "I mess everything up," odds of depression triple.

van Schrojenstein Lantman-de Valk et al. (2006) tracked the same group for one year and saw that new negative events later brought more behavior problems and worse mood. Fullana et al. (2007) adds the snapshot view: thoughts and supports matter right now.

Palka Bayard de Volo et al. (2021) looked at people with severe or profound ID who cannot speak. They found that aggression, self-injury, and sleep changes may also flag depression. Together the papers form a ladder: mild ID—ask; severe ID—watch behavior.

Stancliffe et al. (2007) tested the same year whether Beck’s cognitive triad scale works in mild ID. It does. Fullana et al. (2007) then shows those cognitive scores actually predict depression, closing the loop.

You now have two quick screens: ask about negative thoughts for verbal adults, watch for new problem behaviors in non-verbal adults. After any big life change—move, staff turnover, bereavement—run one or both. Flag high scores and refer on; you may stop a downward spiral before it starts.