| Mean | SD | 1 | 2 | 3 | 4 | 5 | 6 |
1. Online healthcare sales | 64.50 | 122.82 | — |
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2. User review valence | 4.14 | 0.29 | 0.46 | — |
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3. User review volume | 99.18 | 157.55 | 0.58 | 0.63 | — |
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4. Hospital dummy | 0.74 | 0.44 | −0.10 | −0.16 | −0.09 | — |
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5. Activity of doctors | 17.46 | 76.42 | 0.17 | 0.14 | 0.21 | −0.03 | — |
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6. Critic rating of doctors | 3.23 | 0.80 | 0.03 | 0.18 | 0.18 | −0.01 | 0.03 | — |