What impact did the creation of Local Health Care Co-operatives have on indicators of practice resources and activity?

Table 1 Hypotheses tested based on estimated regression parameters

Hypothesis	Test
No significant change over time in the average for participants	β ₁= 0
Non-participants are not significantly different from participants at baseline	β ₂ = 0
No significant change over time in the average for non-participants	β ₃ - β ₂ = 0
Non-participants are not significantly different from participants in second period	β ₃ - β ₁ = 0
Ineligibles are not significantly different from participants at baseline	β ₄ = 0
No significant change over time in the average for ineligibles	β ₅ - β ₄ = 0
Ineligibles are not significantly different from participants in second period	β ₅ - β ₁ = 0

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