The next most common factors is a drop in household income, which can be related to the death of a spouse or an independent factor. (Note: People who shift from owning to renting are generally economically less well-off than those who continue to own.) And the third factor: nursing home entry of a family member.

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But a more recent study of 12, 000 American men and women found that high Lp-PLA2 levels were an independent heart-disease risk factor mainly in those patients with relatively low cholesterol levels.

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But what sets its ConsERV technology apart, aside from a more compact and flexible form factor, is that independent testing has shown it delivers higher rates of moisture transmission, translating into better energy efficiency.

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The polls suggest Corzine has increased his backing among fellow Democrats, but growing support for independent candidate Chris Daggett may also be a major contributing factor.

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