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Table 1 Sampling results of the elderly in pension institutions

From: A study on depression of the elderly with different sleep quality in pension institutions in Northeastern China

City

Shenyang(1)

Shenyang(2)

Anshan(1)

Anshan(2)

Tieling

Benxi

Total

Number of beds

696

624

576

564

552

516

3528

Number of people selected

116

104

96

94

92

86

588