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Table 3 Positive rate of each NPD diagnostic criteria (DSM-IV) identified by PDQ-4+ and SCID-II, and their sex difference

From: Frequency of narcissistic personality disorder in a counseling center population in China

Diagnostic Criteria Screened Positively by PDQ4+(N = 1402 in total) Interviewed Positively by SCID-II (N = 986 in total)
In total PD sample Male (N = 460) Female (N = 526) Male vs. Female
comparison
n Positive rate(%) 95% CI n Positive rate(%) n Positive rate(%) n Positive rate(%) Χ 2 P
1 552 39.4 34.6–44.3 164 16.6 104 22.6 60 11.4 22.207 0.000***
2 612 43.7 38.8–48.6 223 22.6 130 28.3 93 17.7 15.696 0.000***
3 647 46.1 41.2–51.1 98 9.9 64 13.9 34 6.5 15.212 0.000***
4 762 54.4 49.5–59.3 233 23.6 117 25.4 116 22.1 1.555 0.212
5 634 45.2 40.3–50.1 180 18.3 100 21.7 80 15.2 7.012 0.008**
6 239 17.0 13.3–20.7 224 22.7 119 25.9 105 20.0 4.878 0.027*
7 278 19.8 15.9–23.8 79 8.0 48 10.4 31 5.9 6.867 0.009**
8 520 37.1 32.3–41.9 97 9.8 55 12.0 42 8.0 4.364 0.037**
9 428 30.5 25.9–35.1 117 11.9 63 13.7 54 10.3 2.760 0.097