Table 2.

Summary Statistics for Implementation, Content, and Performance Characteristics of Instruments Used to Collect Patient Perceptions of Hospital Care

Survey Characteristic	Mail Surveys (N =26 studies)*	Telephone Surveys (N =13 studies)*	Drop Box (N =4 studies)*	In-Person Interviews (N =12 studies)*
Content characteristics
Average number of items (range)	45 (15–72)	23 (8–39)	16 (12–30)	33 (10–121)
Average number of domains (range)	8 (1–14)	5 (2–10)	6 (4–10)	7 (3–14)
Implementation characteristics
When survey is administered: percent of studies (N)	12% (3) Less than 2 weeks postdischarge	0% (0) Less than 2 weeks post discharge	On-site	On-site
	12% (3) 2–4 weeks postdischarge	31% (4) 2–4 weeks post discharge
	19% (5) >4 weeks postdischarge	15% (2) >4 weeks postdischarge
Target sample size (range)	510 (100–1400)	115 (80–150)	10 (NA)†	160 (NA)
Performance characteristics
Average response rate (range)	47% (15–77)	70% (24–91)	63% (27–95)	75% (53–84)
Psychometrics reported: percent of studies (N)	54% (14) internal consistency	15% (2) internal consistency	75% (3) internal consistency	58% (7) internal consistency
	19% (5) test–retest	8% (1) test–retest	25% (1) test–retest	33% (4) test–retest
	NA interrater	0% (0) interrater	0% (0) interrater	8% (1) interrater
	19% (5) concurrent	8% (1) concurrent	50% (2) concurrent	17% (2) concurrent
	15% (4) construct	8% (1) construct	25% (1) construct	17% (2) construct

NA, not applicable

^*Eighty-four articles were reviewed, 59 were included in this review; we were unable to determine the mode of administration in three articles and a further five articles used more than one mode of administration. Therefore, the number of studies cited in this table does not total 59

^†This information was only given in one study