Table 2.

Concordance of partner and self-report for alcohol outcomes (N=247)

	Female alcohol use					Male alcohol use
Categorical outcomes	N (%)					N (%)
	Self-report	Partner-report	% Actual agreement	% Expected agreement due to chance	Kappa	Self-report	Partner-report	% Actual agreement	% Expected agreement due to chance	Kappa
Any alcohol usea	167/247 (67.6)	181/247 (73.3)	64.4	58.2	0.15	224/247 (90.7)	243/247 (98.4)	89.1	89.4	−0.03
Quantityb
1–2 drinks	42/147 (28.6)	41/167 (24.5)	60.5	60.5	−0.01	54/217 (24.9)	38/239 (15.9)	70.3	67.9	0.08
3+ drinks	105/147 (71.4)	126/167 (75.5)				163/217 (75.1)	201/239 (84.1)
Frequencyc
1–4 times/month	96/149 (64.4)	118/168 (70.2)	65.2	56.9	0.19	129/217 (59.5)	85/239 (35.6)	50.7	47.0	0.07
2+ times/week	53/149 (35.6)	50/168 (30.0)				88/217 (40.6)	154/239 (64.4)
Hazardous used	161/247 (65.2)	174/247 (70.5)	64.0	56.2	0.18	192/247 (77.7)	232/247 (93.9)	71.7	74.4	−0.10
Continuous outcome	Mean (SD)					Mean (SD)
	Self-report	Partner-report	Spearman correlation	Mean Difference (SD)	t	Self-report	Partner-report	Spearman correlation	Mean Difference (SD)	t
AUDIT score	10.8 (11.0)	10.0 (9.0)	0.24	0.8 (12.9)	1.01	15.8 (10.4)	20.7 (9.4)	0.14	4.9 (13.0)	−5.9*

^aResponse of ‘once a month’ or more to AUDIT Item # 1 (how often do you have a drink containing alcohol?) and/or response of ‘yes in the past year’ to AUDIT Item # 9 (have you or someone else been injured as a result of your drinking) or #10 (has a relative or friend or a doctor or another health worker been concerned about your drinking or suggested you cut down).

^bDerived from AUDIT Item # 2 (how many drinks containing alcohol do you have on a typical day when you are drinking?). Denominator includes only those who reported a response of ‘once a month’ or more to AUDIT Item # 1.

^cDerived from AUDIT Item #1. Denominator includes only those who reported a response of ‘once a month’ or more to AUDIT Item # 1.

^dFor women hazardous use defined as AUDIT score of >=4; for men >=8

^*p<.0001