. Author manuscript; available in PMC: 2015 Apr 20.

Published in final edited form as: J Am Dent Assoc. 2014 Dec;145(12):1218–1226. doi: 10.14219/jada.2014.93

TABLE 3.

Mean time for implants to achieve an ISQ^* greater than or equal to baseline ISQ.^†

HbA_1c^‡ AT PLACEMENT (BASELINE)	NUMBER OF PATIENTS	MEAN TIME (95% CONFIDENCE INTERVAL), IN MONTHS, TO ISQ ≥ BASELINE ISQ^§
HbA_1c^‡ AT PLACEMENT (BASELINE)	NUMBER OF PATIENTS	Poorer- Performing Implant	Better- Performing Implant
≤ 5.9 Percent	50	3.8 (2.3-5.4)	2.4 (1.0-3.9)
6.0-8.0 Percent	47	4.0 (2.4-5.6)	2.8 (1.3-4.3)
≥ 8.1 Percent	20	7.3 (4.9-9.8)	5.4 (3.1-7.7)
Statistical Significance	Not applicable	P = .0482^¶ P = .0144^# P = .8446^**	P = .0879^¶ P = .0309^* P= .6801^**
TOTAL	117	5.1 (3.9-6.2)	3.6 (2.5-4.6)

ISQ: Implant stability quotient.

^†

For patients lost to follow-up before the implant attained an ISQ greater than or equal to the baseline ISQ, the authors assumed that the implant did not achieve such an ISQ during the study.

^‡

HbA_1c: Hemoglobin A_1c.

^§

Unless otherwise specified.

^¶

Test of differences among the three HbA_1c groups.

Test of difference between an HbA_1c level of 8.1 percent or greater and a combined HbA_1c level of 5.9 percent or lower and an HbA_1c level between 6.0 and 8.0 percent.

^**

Test of difference between an HbA_1c level of 5.9 percent or lower and an HbA_1c level between 6.0 and 8.0 percent.