Table 2.

Patient-level characteristics of subjects with a cracked tooth.

	ALL		Increase in # cracks		Increase in # symptoms		Decrease in # of symptoms
	(N = 1,850)		(N = 106)		(N = 194)		(N = 421)
Characteristics	N¹	Col%²	N	Row %³	N	Row %³	N	Row %³
Gender
Male	666	36%	39	6%	61	9%	125	19%
Female	1,183	64%	67	6%	132	11%	296	25%
adjusted OR⁴			OR = 0.96		OR = 1.26		OR =1.40
adjusted p⁵			P = 0.9		P = 0.086		P= 0.002
Race⁶-ethnicity
White	1,553	85%	95	6%	167	11%	3.0	22%
Black	77	4%	2	3%	13	17%	16	21%
Asian	35	2%	1	3%	1	3%	9	26%
Hispanic	122	7%	7	6%	10	8%	32	26%
Other	42	2%	1	2%	3	7%	19	45%
adjusted p			P = 0.052		P = 0.15		P = 0.55
Age (years)
< 35	112	6%	1	1%	9	8%	29	26%
35 – 44	260	14%	19	7%	33	13%	67	26%
45 – 54	531	29%	33	6%	59	11%	123	23%
55 – 64	593	32%	34	6%	58	10%	141	24%
65 and older	353	19%	19	5%	34	10%	60	17%
adjusted OR [per 10 years]			OR = 1.02		OR = 0.95		OR = 0.91
adjusted p [trend]			P = 0.7		P = 0.4		P = 0.038
Dental insurance
None	452	24%	26	6%	43	10%	104	23%
Any	1,398	76%	80	6%	151	11%	317	23%
adjusted OR			OR = 0.85		OR = 1.00		OR = 0.91
adjusted p			P = 0.5		P = 0.98		P = 0.43
Education
<= High school	271	15%	8	3%	25	9%	68	25%
Some college/Associate	642	35%	40	6%	61	10%	153	24%
Bachelor	541	29%	31	6%	69	13%	124	23%
Graduate degree	384	21%	26	7%	38	10%	74	19%
adjusted p			P = 0.088		P = 0.21		P = 0.31
Region
Western	254	14%	21	8%	31	12%	59	23%
Midwest	213	12%	18	8%	17	8%	58	27%
Southwest	370	20%	19	5%	28	8%	94	25%
South Central	382	21%	11	3%	50	13%	93	24%
South Atlantic	321	17%	13	4%	37	12%	64	20%
Northeast	310	17%	24	8%	31	10%	53	17%
adjusted p			P = 0.087		P = 0.4		P = 0.21
Clench, grind, or press teeth together
No	631	34%	40	6%	57	9%	113	18%
Yes	1,219	66%	66	5%	137	11%	308	25%
adjusted OR			OR = 0.76		OR = 1.28		OR = 1.42
adjusted p			P = 0.18		P = 0.13		P = 0.004

Column Ns not summing to column total N above due to missing data.

Column percents not summing to 100 due to rounding.

Percent of column within level of patient characteristic.

⁴

OR:Odds ratios adjusted for clustering of patients within practice.

⁵

P:P-value adjusted for clustering of patients within practice.

⁶

Race groups are all non-Hispanic.