. 2018 Apr 18;154(5):544–553. doi: 10.1001/jamadermatol.2018.0288

Table 3. Multivariate Logistic Regression Analysis of Health Care Behaviors Associated With Melanoma Thickness in Patients With NM or SSM .

Variable	Patients With NM (n = 147)			Patients With SSM (n = 538)
Variable	Patients, No.	Tumor ≤2 mm, OR (95% CI)^a	P Value	Patients, No.	Tumor ≤2 mm, OR (95% CI)^b	P Value
Had a usual place to go when sick/needed health advice^c
No usual place to go for care	116	1 [Reference]		65	1 [Reference]
Doctor’s office/clinic/health center/urgent care center/emergency department/other	30	1.03 (0.41-2.57)	.95	464	2.20 (1.15-4.19)	.02^d
Had a physician for routine care^e
No	54	1 [Reference]		392	1 [Reference]
Yes	93	1.34 (0.61-2.93)	.47	137	1.71 (1.01-2.89)	.04^d
Visits to physician in the year before patient was diagnosed with melanoma^c
0	22	1 [Reference]		63	1 [Reference]
1	38	1.42 (0.38-5.32)	.60	136	0.88 (0.40-1.95)	.76
2-3	44	2.70 (0.77-9.45)	.12	174	1.35 (0.61-3.01)	.46
>3	42	1.63 (0.44-5.95)	.46	156	1.51 (0.67-3.41)	.33
Patient received a physician skin examination for cancer^f
No/don’t know	83	1 [Reference]		266	1 [Reference]
Yes	59	2.21 (1.04-4.69)	.04^d	252	1.53 (0.96-2.46)	.08
If patient had a physician examine skin for cancer, what was the reason for examination?^f
Part of physician’s routine physical examination
No	122	1 [Reference]		419	1 [Reference]
Yes	19	2.26 (0.81-6.30)	.12	98	1.18 (0.65-2.15)	.58
Physician told patient he or she should be screened for skin cancer
No	132	1 [Reference]		480	1 [Reference]
Yes	9	6.27 (1.46-26.88)	.01^d	37	1.42 (0.52-3.85)	.49
Patient was concerned about skin cancer
No	130	1 [Reference]		471	1 [Reference]
Yes	11	3.86 (1.05-14.23)	.04^d	46	0.91 (0.40-2.08)	.82
Patient’s spouse, partner, or other person thought patient should be screened
No	133	1 [Reference]		485	1 [Reference]
Yes	8	5.08 (1.13-22.73)	.03^d	32	0.89 (0.34-2.31)	.81
Type of skin examination performed by physician^g
None	86	1 [Reference]		269	1 [Reference]
Whole skin	26	2.67 (1.05-6.82)	.04^d	125	2.25 (1.16-4.35)	.02^d
Particular lesion	28	1.73 (0.67-4.49)	.26	112	1.17 (0.66-2.10)	.59
Don’t know	2	4.23 (0.25-72.67)	.32	13	0.46 (0.13-1.54)	.21
Did physician tell patient he or she was at risk for skin cancer?
No	117	1 [Reference]		402	1 [Reference]
Yes	30	5.32 (2.26-12.53)	<.001^d	127	1.98 (1.06-3.71)	.03^d

Abbreviations: NM, nodular melanoma; OR, odds ratio; SSM, superficial spreading melanoma.

^{^a}

Adjusted for age (continuous), sex.

^{^b}

Adjusted for age (continuous), sex, education.

^{^c}

Twelve missing values.

^{^d}

Statistically significant.

^{^e}

Nineteen missing values.

^{^f}

Seven missing values.

^{^g}

Eighteen missing values.