根据全球老年人住房情况，能否总结出住房类型、共住状况以及其对生活质量的影响？
user
```json
{
  "summary": {
    "housing_types": [
      {"type": "Independent living", "description": "Seniors live in their own homes or apartments."},
      {"type": "Assisted living", "description": "Housing designed for seniors who need help with daily activities."},
      {"type": "Nursing homes", "description": "Facilities providing 24-hour nursing care."},
      {"type": "Multi-generational living", "description": "Living arrangements where multiple generations of a family live together."}
    ],
    "cohabitation_status": [
      {"status": "Living alone", "description": "Seniors live independently without family or roommates."},
      {"status": "Living with family", "description": "Seniors live with children or other family members."},
      {"status": "Living with roommates", "description": "Seniors share housing with non-family members."}
    ],
    "impact_on_quality_of_life": {
      "positive_effects": [
        {"effect": "Emotional support", "description": "Living with family or roommates can provide emotional comfort."},
        {"effect": "Social interaction", "description": "Increased opportunities for social engagement."},
        {"effect": "Assistance with daily tasks", "description": "Family and assisted living can help with daily activities."}
      ],
      "negative_effects": [
        {"effect": "Loss of independence", "description": "Living in nursing homes or with constant care can reduce independence."},
        {"effect": "Privacy concerns", "description": "Living with others may reduce personal privacy."},
        {"effect": "Stress and conflict", "description": "Family living arrangements can lead to interpersonal stress."}
      ]
    }
  }
}
```
assistant